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Chinese Journal of Oral Implantology 2020 Vol.25 Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Analysis of the effects of immediate planting and early planting on the soft tissue around the implant in the esthetic area JIANG Xisong, ZHANG Xu, LI Long, et al Chinese Journal of Oral Implantology    2020, 25 (1): 1-3.   DOI: 10.12337/zgkqzzxzz.2020.03.001 Abstract （260）      PDF （496KB）（417）       Knowledge map    Save Objective: To analyze the effects of immediate planting and early planting on the soft tissues around the implants in the edentulous aesthetic area. Methods: A total of 60 patients with single anterior teeth loss from August 2015 to August 2019 were randomly selected. Among them, 30 patients were implanted immediately after tooth extraction(observation group), and 30 patients were implanted early after tooth extraction. Into the control group, the zirconia all-ceramic restoration was given to the Astra Tech implants and implants six months later, and the results were reviewed after half a year. The red aesthetic scores(PES) of the two groups were compared. Results: There was no significant difference between the two groups in the PES score and the PES scores of each node( P>0.05). In the PES scores of each node, the gingival biotype and alveolar bone defect, the distal nipple, the missing tooth position and the gingival height and there is a significant correlation between the cause of missing teeth and the height of near and far. Conclusion: The effects of immediate implantation and early implantation on the soft tissue around the implant in the edentulous aesthetic area are not obvious. The main effects of soft tissue aesthetics on implant restoration in the anterior aesthetic area include missing tooth position, gingival biotype and lack of teeth. Reference | Related Articles | Metrics Select Application of Onlay bone grafting technique in the dental aesthetic area of anterior teeth LIN Yong, HOU Dang, CHANG Xiaorong Chinese Journal of Oral Implantology    2020, 25 (1): 4-7.   DOI: 10.12337/zgkqzzxzz.2020.03.002 Abstract （290）      PDF （541KB）（456）       Knowledge map    Save Objective: To evaluate the application of Onlay bone grafting technique in dental aesthetic area of anterior teeth. Methods: To select 82 cases of patients undergoing dental implants repair surgery, according to the preoperative evaluation, the patients were given the Onlay bone grafting techniques and dental implants repair surgery. It was observed that the changes of alveolar ridge and dental aesthetic indexes during the period of Onlay bone grafting, and the survival rate of dental implants was recorded. Results: It was found that the horizontal bone mass of alveolar ridge(7.84±0.42)mm and the vertical bone mass of alveolar ridge(11.65±0.85)mm at the end of 3 months after Onlay bone grafting, and the horizontal bone mass of alveolar ridge(7.15±0.60)mm and the vertical bone mass of alveolar ridge(10.86±0.63)mm at the end of 6 months after Onlay bone grafting were significantly higher than that of pre-grafted bone, P=0.035、0.039、0.035、0.040, The PES(7.48±1.36) points,WES (7.56±1.09) points at the end of 3 months after dental implants surgery, and the PES(7.78±1.42) points,WES(7.82±1.51) points at the end of 6 months after dental implants surgery, were significantly higher than those before operation, P=0.040、0.043、0.038、0.032. After Onlay bone grafting, the bone tissue was beautiful and plump, the wound was well healed, there was no bone necrosis, and the implant survival rate was high. Conclusion: The application of Onlay bone grafting technique in the implantation and repair of the aesthetic area of anterior teeth can significantly improve the problem of insufficient bone quantity in the planting area. The bone healing is good and the implant survival rate is high, so it is worthy to be popularized. Reference | Related Articles | Metrics Select Clinial study of platform switching for early implantation upper anterior teeth ZHU Xuechen, MEI Dongmei, WANG Wenxue, et al Chinese Journal of Oral Implantology    2020, 25 (1): 8-12.   DOI: 1012337/zgkqzzxzz.2020.03.003 Abstract （175）      PDF （571KB）（326）       Knowledge map    Save Objective: To compare the effect of platform switching and butt-joint implant system on soft and hard tissues around implants in early implantation of upper anterior teeth. Methods: 40 patients with early implantation of upper anterior teeth were randomly divided into two groups: A(platform switching group, implant Nobel Active implant), R(butt-joint group, implant Nobel Replace implant) and 20 patients in each group. CBCT was taken at immediately after operation, 6 months after operation and 12 months after permanent crown restoration. Bone absorption of implant neck, lip and palate was measured at 6 months and 1 year after permanent crown restoration. Pink esthetics score(PES score) was performed after crown restoration. Periodontal soft tissue condition was examined at 12 months after restoration, and the results were analyzed statistically. Results: 1) Average bone resorption: 6 months after operation: in group A, the distal and near(0.25±0.12)mm, the lip and palate (0.28±0.13) mm, in group R, the distal and near(0.30±0.12)mm and the lip and palate(0.29±0.15)mm, there was no significant difference( P>0.05). 12 months after permanent crown restoration: in group A, there were significant differences in proximal and distal(0.38±0.14)mm, lip and palate(0.52±0.17)mm), distal (0.70±0.19)mm and lip and palate (0.77±0.18)mm in group R( P<0.05). 2) Pink aesthetic score: group A(10.90±0.89) score, group R(0.48±1.12) score, there was no significant difference ( P>0.05). 3) Soft tissue condition after 12 months of permanent crown restoration: 6 sites average PD(mm) A group (1.98±0.53)mm, R group(2.75±0.75)mm, improved plaque index (mPLI) A group(0.81±0.93), R group(1.34±0.53), improved gingival sulcus bleeding index(mSBI) A group (0.61±0.19), R group (0.98±0.41), the difference was statistically significant( P<0.05). Conclusion: Platform-switching and butt joint implants can both acquire good clinical outcomes in early implantation of upper anterior. However, platform-switching is more bebificial for marginal bone and tissue preservation around dental implants. Reference | Related Articles | Metrics Select Clinical analysis of reconstruction of attachment gingiva in dental implant repair HE Fanglin, LIN Junfang, JIANG Lihui Chinese Journal of Oral Implantology    2020, 25 (1): 13-16.   DOI: 10.12337/zgkqzzxzz.2020.03.004 Abstract （208）      PDF （537KB）（369）       Knowledge map    Save Objective: To discuss and analyze the clinical value of attachment gingiva reconstruction in dental implant repair. Methods: There were 72 patients with dental implants treated in our hospital from October 2017 to October 2019 as our research objects. These 72 patients with dental implants were divided into two groups according to the principle of randomness(control group and experimental group), each group has 36 patients, the control group seams by conventional gum; the experimental group attached by gingiva reconstruction, and then the clinical effects of the patients were compared and analyzed for two groups. Results: The total effective rate of clinical therapeuticsin the experimental group (97.12%) was definitely higher than that in the control group(52.78%), before the two groups patients taking the operation, by means of statistics analysis, the average width of the two groups wasn't statistically significant( P>0.05), and the average width of 1 and 6 months after operation in the experimental group was statistically significant( P<0.05) compared with that in the control group. BI in the experimental group(0.71±0.54) , PLI (0.61±0.10), PD(1.69±0.38) were significantly better than BI(0.86±0.48), PLI (0.78±0.22), PD(2.91±0.44) in the control group, and the grade of physiological and psychological functions in the experimental group were significantly better than those in the control group. Conclusion: The application of AG reconstruction in dental implants can significantly enhances the clinic result of reconstruction and improves the quality of life of patients that also has high value on clinical application, which is worthy of clinical promotion and application. Reference | Related Articles | Metrics Select A case of periapical periodontitis after immediate implantation of maxillary anterior teeth ZHAO Binbin, KOU Ni, ZHONG Weijian, et al Chinese Journal of Oral Implantology    2020, 25 (1): 17-19.   DOI: 10.12337/zgkqzzxzz.2020.03.005 Abstract （176）      PDF （584KB）（391）       Knowledge map    Save Objective: To analyze the etiology of periapical periodontitis of implant and summarize the experience of treatment. Methods: One female patient was complicated with periapical periodontitis after immediate implantation of maxillary anterior teeth. The implant was removed and strict debridement irrigation was carried out. Iodoform gelatin sponge and platelet-rich fibrin were implanted in the implant fossa, and the implant was delayed. Observation of clinical repair effect. Results: The X-ray film showed that there was new bone formation in the bone defect, the transmission shadow disappeared and the graft was stable, and the repair effect was satisfactory. Conclusion: After the extraction of periapical teeth, there are residual granulation tissue and inflammatory scar tissue in the extraction fossa. It is necessary to scrape off the granulation tissue and infection, otherwise, it is easy to cause the failure of implantation due to the residual bacteria in the planting area. The choice of planting time and the application of antibiotics before and after implantation are also the key factors for successful implantation. Reference | Related Articles | Metrics Select Study on complications and risk factors of oral implant restoration in 100 patients with dentition defect LAN Jing, LI Biao, SUN Liangfeng, et al Chinese Journal of Oral Implantology    2020, 25 (1): 20-23.   DOI: 10.12337/zgkqzzxzz.2020.03.006 Abstract （204）      PDF （528KB）（341）       Knowledge map    Save Objective: A follow-up study of 100 implanted patients in our hospital was conducted to investigate the retention rate, complications and risk factors of implants after implant restoration, in order to prevent and reduce the occurrence of implant restoration complications. Methods: 100 patients who underwent implant restoration in our hospital from January 2017 to September 2019 were enrolled in the study. The patient's admission information, basic clinical data, implant restoration and complications were recorded, and the complications were discussed. Results: The study included 100 patients with dental implants from January 2017 to September 2019, and 143 implants. The total number of implants was removed and dropped, and the retention rate was 97.90%. There was no significant difference in the retention rate of implants and the incidence of complications( P>0.05). According to the type of repair complications, the overall incidence of each repair complication was counted. The specific results are shown in the following table. The top three complications were food impaction(45.0%), abutment or abutment screw loosening (6.0%). And loss of adjacency(5.0%) (both P<0.05). Logistic regression analysis found that patients>50 years of age had a higher risk of complications than patients≤18 years of age; compared with patients with adequate bone mass, the risk of complications was increased in patients with insufficient bone mass, diabetes is independent risk factors for complications occur more frequently in diabetic patients. Gender and smoking had no significant effect on complications. Conclusion: Food caulking and abutment or abutment screw loosening are common complications, and the incidence of complications in the posterior region, advanced age, insufficient bone mass, and diabetes is relatively high. Reference | Related Articles | Metrics Select The application of immediate implant placement in failure of root canal therapy cases WANG Cairui, LI Shuguang Chinese Journal of Oral Implantology    2020, 25 (1): 24-25.   DOI: 10.12337/zgkqzzxzz.2020.03.007 Abstract （220）      PDF （483KB）（285）       Knowledge map    Save Objective: To explore the application of immediate implant placement in root canal therapy failure cases. Methods: 64 patients who came from January 2014 to December 2017 were selected. After root canal treatment failed, 66 implants were implanted. The 32 implants were implanted by immediate implant method, and 34 implants were implanted routinely at least three months after extraction as control group. The 1-year survival rate, peri-implant plaque index(PLI), modified peri-implant hemorrhage index(mBI) and probing depth(PD) of the two groups were compared. The data were analyzed by PASW statistic 20.0 software. Result: The 1-year survival rate of weight-bearing in the two groups was 100%. There was no significant difference in PLI, mBI and PD around implants between the two groups. Conclusion: For root canal treatment failure cases, immediate implant is a feasible way of restoration. Reference | Related Articles | Metrics Select How to improve the safety of oral implant outpatient treatment during the COVID-19 epidemic ZHAO Xinxia, TENG Lizhao, HUANG Bei, et al Chinese Journal of Oral Implantology    2020, 25 (1): 26-31.   DOI: 10.12337/zgkqzzxzz.2020.03.008 Abstract （182）      PDF （530KB）（341）       Knowledge map    Save The outbreak and spread of covid-19 (Corona Virus Disease 2019) has become a "public health emergency of international concern" identified by the world health organization [1], bringing huge challenges to the diagnosis, treatment and care of oral implant clinics. The specialty of oral implant treatment and the epidemiological characteristics of covid-19 make oral medical personnel a high-risk group for covid-19 infection, and the outbreak of the epidemic is at risk of oral operation. According to the general requirements for prevention and the professional characteristics of dental implant clinics, this paper formulated relevant nursing prevention and control measures to ensure orderly nursing work and improve the safety of diagnosis and treatment. The contents of this paper include pre-examination and triage, protection under different working scenarios and improving the environmental safety of oral implant outpatient service, etc. The oral care and protection strategies under the epidemic situation are proposed to protect the health of medical staff and patients, so as to provide reference for the nursing and prevention work of oral implant outpatient service during the epidemic period. Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (1): 32-34.   DOI: 10.12337/zgkqzzxzz.2020.03.009 Abstract （235）      PDF （530KB）（318）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (1): 35-40.   DOI: 10.12337/zgkqzzxzz.2020.03.010 Abstract （301）      PDF （517KB）（371）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (1): 41-46.   DOI: 10.12337/zgkqzzxzz.2020.03.011 Abstract （256）      PDF （517KB）（441）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (1): 47-50.   DOI: 10.12337/zgkqzzxzz.2020.03.012 Abstract （358）      PDF （492KB）（402）       Knowledge map    Save Reference | Related Articles | Metrics Select Effect of PRF on immediate implant of anterior teeth loss and its effect on bone resorption HUANG Bei, TANG Caomin, ZHANG Sheng, et al Chinese Journal of Oral Implantology    2020, 25 (2): 51-54.   DOI: 10.12337/zgkqzzxzz.2020.06.001 Abstract （189）      PDF （600KB）（237）       Knowledge map    Save Objective: To study the effect of PRF on immediate implant of anterior teeth loss and its effect on bone resorption. Methods: Ninety patients with anterior teeth missing admitted to our hospital from May 2017 to May 2019 were selected as the research objects. They were randomly divided into two groups: observation group and control group, 45 cases in each group. The control group was treated routinely after implantation, while the observation group was treated with PRF after extraction. The clinical efficacy, cosmetic effect and adverse reactions were compared between the two groups. Two groups of patients were reexamined after 2, 4, 8 and 12 months of treatment, and bone resorption levels were compared between the two groups at different time points. Results: The effective rate of the observation group was 97.78%, which was significantly higher than that of the control group(82.22%, P<0.05). The bone resorption level of the two groups decreased after 4, 8, 12 months of treatment compared with 2 months of treatment( P<0.05). After 2, 4 and 8 months of treatment, the bone resorption level in the observation group was significantly lower than that in the control group( P<0.05). There was no difference in bone resorption between the two groups after 12 months of treatment( P>0.05). After treatment, there was no difference in tooth color and facial condition score between the observation group and the control group( P>0.05). After treatment, the scores of dental appearance and overall aesthetics in the observation group were significantly higher than those in the control group( P<0.05). After 12 months of treatment, the total incidence of adverse reactions in the observation group was 6.67%, which was significantly lower than that in the control group(24.4%, P<0.05). Conclusion: PRF can promote bone tissue repair and wound healing, reduce bone resorption, reduce the incidence of adverse reactions after treatment, and improve dental aesthetics. It is worthy of clinical promotion. Reference | Related Articles | Metrics Select The retrospective analysis of a short-term clinical and radiologic applications of kangsheng implants CHEN Ping, YAO Guiliang, WANG Xiaheng Chinese Journal of Oral Implantology    2020, 25 (2): 55-59.   DOI: 10.12337/zgkqzzxzz.2020.06.002 Abstract （157）      PDF （577KB）（453）       Knowledge map    Save Objective: To retrospectively evaluate the 3 years clinical and radiologic outcomes of Kangsheng implants. Methods: A total of 157 patients with 279 implants were placeed from May 2017 to March 2019 at the department of implantology, Baoji stomatological hospital. Patients were follow ed up. The survival rate and the marginal bone loss were evaluated by clincal and radiologic examination. Results: The 279 implants were follow up 6 to 24 months, one implants lost, two implants where the base screw were broken. The survival rate is 98.6%. The medial and distal marginal bone loss were（0.95±1.08）mm and（0.87±1.21）mm, and no differences in the first and second year. Conclusions: High implant survival rate was achieved by Kangsheng implants in the short term, marginal bone level was relatively stable, clinical outcomes were reliable. Reference | Related Articles | Metrics Select Zygomatic implants technique for bone atrophy in maxillary posterior regions LI Mingfei, TANG Yong, ZHOU Yutao, et al Chinese Journal of Oral Implantology    2020, 25 (2): 60-63.   DOI: 10.12337/zgkqzzxzz.2020.06.003 Abstract （242）      PDF （491KB）（354）       Knowledge map    Save Objective: To report the clinical application of zygomatic implants in patients with severe bone atrophy and defect in maxillary posterior regions. Methods: 7 zygomatic implants and 13 conventional dental implants were implanted in 4 patients. 3D CT reconstruction of jaws was performed in all patients before operation. A 1:1 maxillary models were made using 3D printing technique to design the locations and directions of implantation of zygomatic implants, according to the Branemark zygomatic implant method. Results: 7 zygomatic implants and 13 conventional dental implants were implanted in ideal axial and position. Temporary fixed denture rehabilitation was performed from 1 to 7 days after implantation, and permanent denture rehabilitation was performed after 3 months. Followed up for 6 months to 2 years, dentures function normally. Conclusion: The zygomatic implantation is a feasible method for the reconstruction of masticatory function in patients with severe bone absorption and maxillary defect. Reference | Related Articles | Metrics Select A retrospective study of locator implant overdenture in elderly edentulous patients LI Jun, ZHANG Junhua, SUN Lihua, et al Chinese Journal of Oral Implantology    2020, 25 (2): 64-68.   DOI: 10.12337/zgkqzzxzz.2020.06.004 Abstract （249）      PDF （586KB）（454）       Knowledge map    Save Objective: To study clinical application of locator implant overdenture in elderly edentulous restoration. Methods: The edentulous patients who underwent locator implant overdenture restoration in the Department of Prosthodontics, Binzhou Medical College Hospital from February 2014 to March 2017 were included. The probing depth(PD) and modified plaque index were recorded at the time of follow-up. Plaque index, mPLI), modified Bleeding Index(mBI), marginal bone resorption(MBL). Results: A total of 46 patients(139 implants) were enrolled. The average follow-up was 25 months. The mean PD, mPLI, and mBI were 1.6±1.1, 0.9±0.6, and 0.8±0.5, respectively. The bone resorption at the implant margin was(1.2±1.0)mm, (1.1±0.9)mm. The scores of PD, mPLI, and mBI were significantly higher when oral hygiene was poor(less than 3 minutes for each brushing time and less than 2 times a day)( P<0.05). The bone resorption of 3-4 marginal implants was significantly less than that of 1-2 implants( P<0.05). Conclusion: Locator implant overdenture can achieve good clinical results in soft and hard tissues in a short time. The number of implants should be increased as much as possible when designing locator overdenture implant. Proper oral hygiene maintenance after permanent repair is the key to ensuring long-term soft and hard tissue stability. Reference | Related Articles | Metrics Select Study on the accuracy of the digital implant guides in the aesthetic area CHEN Sufeng, LIN Yina, LIN Hai, et al Chinese Journal of Oral Implantology    2020, 25 (2): 69-71.   DOI: 10.12337/zgkqzzxzz.2020.06.005 Abstract （210）      PDF （510KB）（304）       Knowledge map    Save Objective: To explore the influence of a universal implant guide on the accuracy and clinical effect of implant surgery in the aesthetic area. Methods: With computer-guided surgery the position of the planned implants was compared to the actual position of the implants. The preoperative computed tomography data was matched with the postoperative computed tomography data by using exocad software. A analysis was used to evaluate the effect on the implant accuracy and angle. The clinical effect was evaluated 2 weeks after repair. Results: (1) The accuracy of the implant neck and root was controlled within 1mm and the average angular deviation of the implant neck and root was less then 5°. (2) The clinical results was good. The implant angle and gingival margin position were basically the same as the design. Conclusion: The universal implant guide has high accuracy, small devitation angle, and satisfactory clinical results. Reference | Related Articles | Metrics Select Clinical study on the application of flap and flapless technique in the immediate implantation of maxillary anterior teeth XIONG Hang, NIU Tao Chinese Journal of Oral Implantology    2020, 25 (2): 72-75.   DOI: 10.12337/zgkqzzxzz.2020.06.006 Abstract （215）      PDF （576KB）（350）       Knowledge map    Save Objective: To observe and compare the clinical effect of flap and flapless in the immediate implantation of maxillary anterior teeth. Methods: We divided 30 patients into flap group and flapless group randomly. The two groups were used implants from SIC. Biooss bone powders mixed with the autograft obtained during the implantation surgery as bone graft material. Then infiltrated by their own blood, and the absorbable collagen membrane as the barrier membrane. In the flap group, immediate implantation was performed after gingive incised, while in the flapless group, immediate implantation was performed only with the extraction socket during operation. The patients were followed up for 1 year. The gingival papilla index, alveolar bone resorption height around the implants and the postoperative satisfaction were observed. Result: One year after the operation, the gingival papilla index and alveolar bone absorption of the two groups were compared, and the satisfaction about the operation was compared, while that of the flapless group was better（ P<0.05）. Conclusion: Immediate implantation without flap can effectively improve the effect of implantation, and patients feel better. Reference | Related Articles | Metrics Select Clinical application about two-stage closed sinus lift combined with CGF for severe bone deficiency in the posterior maxillary XIAO Ting, LONG Hui, HU Bai, et al Chinese Journal of Oral Implantology    2020, 25 (2): 76-79.   DOI: 10.12337/zgkqzzxzz.2020.06.007 Abstract （243）      PDF （659KB）（309）       Knowledge map    Save Objective: To evaluate the long-term clinical outcomes of two-stage closed sinus lift for the maxillary sinus combined with CGF for severe bone deficiency in the posterior maxillary. Methods: Twenty-three patients with maxillary posterior tooth loss(1mm≤RBH≤2mm) were treated with two-stage closed sinus lift combined with CGF at the prosthodontics department of our hospital between February, 2014 and February, 2018, with 41 implants implanted. And implant-supported fixed prostheses were restored. According to the clinical observation and x-ray examination to assess the survival rates of the implant within 2 years. Results: Among the 41 implants placed, all implants showed well-osseointegrated to the alveolar bones, no implants were failed. The cervical alveolar bone surrounding the implants were stable at the end of the two years. The survival rate was 100%. Conclusions: In the 2-year follow up clinical study, favorable long-termclinical outcomes can be achieved by two-stage closed sinus lift for the maxillary sinus combined with CGF for severe bone deficiency in the posterior maxillary with less trauma and less clinical time, and provide a simpler and more convenient method to solve the problem of severe alveolar bone height deficiency in the maxillary posterior region, especially for the patients with severe limitation of mouth opening and thickening check muscle. Reference | Related Articles | Metrics Select The clinical observation of immediate implantation with posterior maxillary molar bone extraction GAO Hongqiang Chinese Journal of Oral Implantology    2020, 25 (2): 80-81.   DOI: 10.12337/zgkqzzxzz.2020.06.008 Abstract （215）      PDF （467KB）（255）       Knowledge map    Save Objective: To investigate the effect of immediate implantation of maxillary molars with bone extraction from the posterior region of maxillary molars. Method: Forty patients from May 2017 to May 2018 were selected, all of them were immediate implant patients. A total of 48 implants were implanted, of which 26 were taken from the posterior maxillary molar area as the experimental group and 22 were implanted with artificial bone powder as the control group. The 1-year survival rate of weight-bearing, the depth of exploration(PD), the modified peri-implant hemorrhage index(mBI) and the peri-implant plaque index(PLI) were compared between the two groups. The data were analyzed by PASW statistic 16.0 software. Results: The 1-year retention rate of weight-bearing in the two groups was 100%. There was no significant difference in bone resorption and gingival stability between the two groups. Conclusion: The immediate implantation of maxillary molar posterior area can achieve satisfactory clinical results. Reference | Related Articles | Metrics Select Observation on the effect of handpiece disassembly cleaning method on the quality of dental cleaning by slow speed bending machine ZHAO Xinxia, HUANG Bei, ZHANG Sheng, et al Chinese Journal of Oral Implantology    2020, 25 (2): 82-84.   DOI: 10.12337/zgkqzzxzz.2020.06.009 Abstract （323）      PDF （501KB）（450）       Knowledge map    Save Objective: To improve the cleaning and disinfection effect of dental bender, the handpiece disassembly cleaning method was applied in our hospital and the effect was observed. Methods: After periodontal scaling, NSK slow bending machine was randomly cleaned and detected 150 times per group. The patients were divided into the experimental group(manual+handpiece disassembly+ultrasonic cleaning group/manual+handpiece disassembly+thermal mechanical cleaning group) and the control group(manual+ultrasonic cleaning group). Results: There was no significant difference in the cleaning and disinfection effect between the two groups( P>0.05), and the cleaning and disinfection effect was significantly better than the control group( P<0.05). Conclusion: The slow bending machine for dentistry is a precision instrument with complicated structure.The application of manual initial washing, ultrasonic shock enzymatic washing/thermal mechanical cleaning, head assembly, oiling, curing, packaging and sterilization process after disassembly of the bending machine can get a satisfactory cleaning qualification rate of the bending machine, which is an ideal and effective method. Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (2): 85-89.   DOI: 10.12337/zgkqzzxzz.2020.06.010 Abstract （436）      PDF （491KB）（436）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (2): 90-94.   DOI: 10.12337/zgkqzzxzz.2020.06.011 Abstract （290）      PDF （487KB）（400）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (2): 95-100.   DOI: 10.12337/zgkqzzxzz.2020.06.012 Abstract （211）      PDF （523KB）（370）       Knowledge map    Save Reference | Related Articles | Metrics Select Effect of fine nursing on dental implant repair and prognosis in DM patients CHENG Qin, GUO Kexi, XI Qiaoling Chinese Journal of Oral Implantology    2020, 25 (3): 101-104.   DOI: 10.12337/zgkqzzxzz.2020.09.001 Abstract （210）      PDF （534KB）（340）       Knowledge map    Save Objective: To study and analyze the effect of fine nursing on dental implant repair effect and prognosis in patients with diabetes mellitus(DM). Methods: From January 2015 to October 2016, 82 cases of DM patients who received dental implant and prosthesis in our hospital were included as study objects. They were divided into study group and control group by random lottery. Control group was given routine nursing, research group on the basis of the control group was given fine nursing intervention. Changes in blood glucose level before and after surgery, implant retention at 1-3 years after surgery, occurrence of adverse events during perioperative period and nursing satisfaction were compared between the two groups. Results: FPG level in the study group was lower than that in the control group 1, 2 and 3 years after operation (all P<0.05). The implant survival rate in the study group was higher than that in the control group (both P<0.05). The incidence of operation interruption in the study group was lower than that in the control group( P<0.05). Nursing satisfaction in study group was higher than that in control group( P<0.05). Conclusion: The application of fine nursing care in DM patients receiving dental implant repair has a significant effect, which can significantly improve patients' blood glucose level, improve implant retention rate, reduce the risk of perioperative adverse events, and improve nursing satisfaction. It is worthy of clinical application. Reference | Related Articles | Metrics Select Influence of simultaneous implantation of Bio-oss bone powder with dental implants for neurological function in patients with alveolar bone defect Tu xun a yi·ha si mu, SUN Qin, HUA Ying Chinese Journal of Oral Implantology    2020, 25 (3): 105-107.   DOI: 10.12337/zgkqzzxzz.2020.09.002 Abstract （205）      PDF （544KB）（316）       Knowledge map    Save Objective: To probe into the influence of simultaneous implantation of Bio-oss bone powder with dental implants for neurological function in patients with alveolar bone defect. Methods: 90 cases of patients with tooth loss and alveolar bone defect and who treated from January 2018 to October 2019 were selected ad the research objects, and the patients were divided into control group and observation group by the random number table method, with 45 cases in each group. The control group was treated with single implant, and the observation group was treated with simultaneous implantation of Bio-oss bone powder with dental implants. Then, the healing effect, implant effect and nerve function of two groups were compared. Results: The excellent and good healing rate in the observation group was 97.78%, which was significantly higher than that of the control group of 84.44%( P<0.05). There was significant differences in bleeding index, probing depth and attachment loss after treatment between the observation group and the control group( P<0.05). The number and diameter of nerve fibers in the observation group were compared with those in the control group, and the difference was statistically significant( P<0.05). Conclusion: The simultaneous implantation of Bio-oss bone powder with dental implants can promote the healing of patients with tooth defect and alveolar bone defect, and can also improve the repair effect and nerve function, thus it is worth promoting. Reference | Related Articles | Metrics Select The clinical effect analysis of CGF combined with GBR for the treatment of anterior peri-implantitis HUANG Jie, XIAO Xun, WEN Yongmei Chinese Journal of Oral Implantology    2020, 25 (3): 108-111.   DOI: 10.12337/zgkqzzxzz.2020.09.003 Abstract （322）      PDF （656KB）（423）       Knowledge map    Save Objective: To observe the clinical effect of concentrated growth factor(CGF) combined with guided bone regeneration(GBR) on peri-implantitis in anterior teeth. Methods: A total of 25 cases of peri-implant inflammation in anterior teeth were randomly divided into experimental group and control group. The experimental group was treated with CGF membrane combined with GBR, and the control group was treated with collagen membrane combined with GBR. To evaluate the clinical effect by observing soft tissue healing after two weeks, and surveying probing the depth（PD), bleeding on probing(BOP) and pink esthetic score(PES) after two mouths. Results: There was no statistical difference in soft tissue healing two weeks after operation, but the index of PD and BOP in the experimental group after two mouths were significantly reduced, and the difference of PES score between the two groups was statistically significant( P<0.001). Conclusion: CGF combined with GBR has a good effect in the treatment of peri-implantitis in the aesthetic area of anterior teeth and better soft tissue recovery is achieved. Reference | Related Articles | Metrics Select Imageological analysis of immediate implant healing in patients with type 2 diabetes mellitus LIN Zhenxiang, PAN Zaixing, ZHOU Jinyang, et al Chinese Journal of Oral Implantology    2020, 25 (3): 112-114.   DOI: 10.12337/zgkqzzxzz.2020.09.004 Abstract （197）      PDF （557KB）（249）       Knowledge map    Save Objective: To compare the imaging differences of immediate implant healing between type 2 diabetes mellitus and control group. Methods: Ten patients with diabetes mellitus and ten patients without diabetes mellitus were selected as controls. Under the condition of controlling blood sugar in normal range during perioperative period, single tooth was implanted immediately. CBCT was used to observe the difference of bone mineral density (BMD) in the neck, middle and apex of implant and the width of transmission area around implant in diabetic group and control group immediately and three months after operation. Results: There was no significant difference in bone mineral density between diabetes mellitus group and control group( F=1.37, P=0.24>0.05). The results of variance analysis of transmissive zone width around implants showed that there was statistical significance( F=21.86, P<0.01). The mean width of the transmission zone in the neck of the diabetic group(1.27+1.34mm) was higher than that of the non-diabetic control group(0.51+0.47mm). Conclusion: The bone mineral density around immediate implants in type 2 diabetes mellitus patients was similar to that in control group when blood sugar was controlled in normal range during perioperative period. However, the formation of new bone in neck of implants in type 2 diabetes mellitus patients was slow, and the long-term effect needed to be further observed. Reference | Related Articles | Metrics Select Microinvasive dental implantation and restoration with single tooth loss and root level horizontal bone deficiency TANG Caomin, ZHOU Shangmin, LI Yidan, et al Chinese Journal of Oral Implantology    2020, 25 (3): 115-118.   DOI: 10.12337/zgkqzzxzz.2020.09.005 Abstract （251）      PDF （708KB）（324）       Knowledge map    Save Objective: To explore choices of implants and restoration for patients with single tooth loss and root level horizontal bone deficiency due to different reasons. Methods: Employ one-stage conical implant or combined small-diameter implants which match root level horizontal bone deficiency, and adopt flapless microinvasive implantation techniques to perform operations. Then polish abutment and finish immediate restoration for one-stage conical implant, or perform temporary restoration to anterior teeth using aesthetic denture(no restoration to posterior teeth) and permanent restoration 3~5 months after the combined small-diameter planting operation. Results: The immediate restoration using one-stage conical implant brings aesthetics, comfort and confidence to patients. From the aesthetic aspect, the permanent restoration gets the appearance, color and texture of crown closer to natural teeth and make patients more satisfied. Conclusion: Choose conical or small-diameter implants to match patients who suffer root level horizontal bone deficiency due to missing teeth or alveolar bone deficiency, and perform microinvasive operation and aesthetics restoration. This method can simplify the operation process, relieve much of the pain and achieve the aesthetic restoration effect, such that it is greatly recommendable. Reference | Related Articles | Metrics Select Clinical effects of immediate and delayed implants in patients with periodontal disease after tooth extraction：a meta-analysis ZHANG Mei, LI Shuo, ZHANG Yao Chinese Journal of Oral Implantology    2020, 25 (3): 119-123.   DOI: 10.12337/zgkqzzxzz.2020.09.006 Abstract （255）      PDF （645KB）（415）       Knowledge map    Save Objective: To study the clinical effect of immediate and delayed implantation on patients with periodontal disease after tooth extraction. Methods: Six databases including PubMed, Cochrane Library, and CNKI were searched up to December 2019. The two authors independently performed literature screening, data extraction, and bias risk assessment. Data were extracted and statistically analyzed using RevMan5.2 software. Results: A total of 8 studies were included. The meta-analysis showed that the red aesthetic score at 3, 6 and 12 months after implantation was higher in the immediate implant group than the delayed implant group. The amount of bone resorption in the neck of the immediate implantation group was lower than that of the delayed implantation group, and the difference was statistically significant; there was no statistical difference in the depth of exploration and the success rate of implantation between the two groups. Conclusion: The similar long-term treatment effect can be obtained with immediate and delayed implanting. Immediate implanting in the short term has better results than delayed implanting. Randomized controlled experiments requiring larger samples and longer observation times for more reliable results. Reference | Related Articles | Metrics Select Comparative study of two methods for preserving extraction sockets with three-wall bone defects CHEN Sufeng, YOU Jinchao, PAN Lin Chinese Journal of Oral Implantology    2020, 25 (3): 124-126.   DOI: 10.12337/zgkqzzxzz.2020.09.007 Abstract （242）      PDF （538KB）（325）       Knowledge map    Save Objective: To analyze and evaluate the effects of two different extraction site preservation methods on the aesthetic effect of alveolar bone and alveolar bone resorption in the sockets with three-wall bone defects. Methods: 18 cases of minimally invasive extraction were selected. They were divided into 2 groups: GBR site preservation with flap (group A), site preservation with flapless (group B). Observe the soft tissue healing after surgery, the aesthetic effect of alveolar surgery at 5 months after surgery and alveolar bone resorption. Results: (1)The soft tissue in group A healed well after surgery, but the soft tissue in group B was not completely closed in the early stage. (2)The alveolar aesthetic effect of group A was better than that of group B(p<; 0.05). (3)The increased height of alveolar bone in group A was 7.33±; 0.21mm, in group B was 4.02±; 0.31mm. There were significant differences between the two groups(p<; 0.05). The reduced width of alveolar bone in group A was 0.47±; 0.14mm, in group B was 2.25±; 0.62mm. There were significant differences between the two groups(p<; 0.05). Conclusion: When the extraction sockets were three-wall bone defects in the anterior area and maxillary premolars area, the clinical effect of GBR site preservation with flaps was better than site preservation with flapless. Reference | Related Articles | Metrics Select A clinical study on the application of two kinds of bone drills in the posterior implant site DAI Junfeng, LIU Jin, YU Qing Chinese Journal of Oral Implantology    2020, 25 (3): 127-129.   DOI: 10.12337/zgkqzzxzz.2020.09.008 Abstract （212）      PDF （533KB）（337）       Knowledge map    Save Objective: To compare the clinical effect of two kinds of bone drills in the posterior implant site. Methods: From February 2017 to March 2018, 50 patients were selected, all of them were implant patients in the posterior teeth area, and there were small bone defects in the implant area, a total of 58 implants were implanted, 29 of which were drilled with ring-shaped bone extraction, set as group A; 29 of which were drilled with self grinding bone extraction, set as group B. After 12 months, the absorption of bone graft materials was measured and the 1-year survival rate was compared between the two groups. Data were analyzed by SPSS 25.0. Results: One year after repair, the average bone resorption was 0.56mm in group A and 0.58mm in group B, and the survival rate was 100% 12 months after repair. Conclusion: Two kinds of bone drills can be used as bone graft materials at the implant site, and can achieve satisfactory clinical results. But the scope of application is different. Reference | Related Articles | Metrics Select A study on the influence of dental implant repair on plaque, periodontal pocket index and aesthetics in patients with dentition defect WU Jiahan, YANG Shuo Chinese Journal of Oral Implantology    2020, 25 (3): 130-133.   DOI: 10.12337/zgkqzzxzz.2020.09.009 Abstract （224）      PDF （534KB）（260）       Knowledge map    Save Objective: To study the effects of dental implant restoration on plaque, periodontal pocket index and aesthetics after restoration of dentition defects by comparing with traditional methods of repairing dentition defects. Methods: From October 2018 to October 2019, 80 patients with dentition defects were randomly assigned to the observation group(n=40)and the control group(n=40). The patients in the observation group were treated with dental implant. The control group was treated with traditional methods. The effect of dentition defect and the index of plaque and periodontal pocket were compared before and after treatment in the two groups. Results: The total effective rate of the observation group was significantly higher than that of the control group( P<0.05), there was no statistical significance between the pre-treatment plaque index and the depth of periodontal pocket in the observation group( P>0.05), but after treatment, the plaque index of the two groups was significantly lower than that of the control group, and the periodontal pocket depth was generally shallower than that of the control group The incidence of complications in the two groups was significantly lower than that in the control group( P<0.05). Conclusion: The method of dental implant to repair the defect of dentition has obvious clinical effect, less complications, and has been recognized by patients. It can be widely used in clinical. Reference | Related Articles | Metrics Select Analysis of the application value of minimally invasive non-flap technique in oral implantation NI Kezhou, CHENG Xueyun Chinese Journal of Oral Implantology    2020, 25 (3): 134-136.   DOI: 10.12337/zgkqzzxzz.2020.09.010 Abstract （182）      PDF （527KB）（287）       Knowledge map    Save Objective: To analyze the application value of minimally invasive non-flap technique in oral implantation. Methods: In this study, 100 cases of oral implantation-treated patients in our hospital from January 2019 to January 2020 were taken as the research objects, and divided into two groups by random number method, with 50 cases in each group. The control group received traditional valvular technique treatment, while the experimental group received minimally invasive valvular technique treatment, and the clinical efficacy was compared. Results: Implantation time(0.45±0.46) h, postoperative hormone use time (29.13±8.06) h, postoperative antibiotic use time (35.05±7.25) h, postoperative swelling duration(4.10±1.3) h, and postoperative pain duration(29.48±5.82) h in the experimental group were all lower than those in the control group ( P<0.05). The alveolar bone absorption (0.13±0.01) mm in the experimental group was lower than that in the control group, while PES score(14.32±1.19) and WES score (9.42±1.20) were higher in the experimental group( P<0.05). There was no significant difference between the planting success rate of 96.00% in the experimental group and 94.00% in the control group( P> 0.05). There was no significant difference in the incidence of adverse reactions between the experimental group(4.00%) and the control group(8.00%)( P>0.05). Conclusion: Minimally invasive non-flap technique has a significant effect on oral implant patients, which can shorten the implantation time, improve the aesthetics, and reduce the amount of alveolar ridge bone absorption. It is worthy of popularization and application. Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (3): 137-139.   DOI: 10.12337/zgkqzzxzz.2020.09.011 Abstract （307）      PDF （704KB）（384）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (3): 140-145.   DOI: 10.12337/zgkqzzxzz.2020.09.012 Abstract （405）      PDF （637KB）（548）       Knowledge map    Save Reference | Related Articles | Metrics Select Chinese Journal of Oral Implantology    2020, 25 (3): 146-150.   DOI: 10.12337/zgkqzzxzz.2020.09.013 Abstract （221）      PDF （524KB）（362）       Knowledge map    Save Reference | Related Articles | Metrics Select Effect of CGF and Bio-oss ratio on site preservation LI Beibei, CHEN Zhiyu, YUAN Shuo, et al Chinese Journal of Oral Implantology    2020, 25 (4): 151-154.   DOI: 10.12337/zgkqzzxzz.2020.12.001 Abstract （381）      PDF （705KB）（340）       Knowledge map    Save Objective: Different ratios of CGF and Bio-oss were filled in teeth extraction socket, to explore the ratio of better site preservation effect. Methods: 24 male New Zealand rabbits, the experiment has been approved by the ethics committee of Hospital of Stomatology Hebei Medical University. Groups A, B and C were CGF mixed with Bio-oss at the ratio of 2:1, 1:1 and 1:2. Group D was control group. The teeth extraction socket of the first premolar on both sides of mandible was filled with the same ratio. The left operation was performed on 8 weeks after the right operation, and then they were sacrificed after 4 weeks.Amount of new bone formation and the degree of bone maturity were observed histologically at 4 and 12 weeks using HE and Masson stain. X-rays were used to evaluate the alveolar bone absorption.All images were analyzed by image-pro Plus6.0. Results: At the same time, the order of was group A, B, C and D( P<0.05), alveolar bone resorption in group A, B and C was smaller than group D( P<0.05). At the same group, the new bone formation, bone mass, alveolar bone resorption at 12 weeks was higher than that at 4 week（ P<0.05）. Conclusion: When CGF and Bio-oss were mixed in the ratio of 2:1 was better. Reference | Related Articles | Metrics Select Accuracy analysis of 3D printing guide plate technique in implant operation and postoperative of patients with dentition defect LI Erhong, XUE Bin, QIN Yumiao Chinese Journal of Oral Implantology    2020, 25 (4): 155-157.   DOI: 10.12337/zgkqzzxzz.2020.12.002 Abstract （238）      PDF （524KB）（276）       Knowledge map    Save Objective: To investigate the application effect of 3D printing guide plate technology in the implantation of patients with dentition defect and its influence on postoperative accuracy. Methods: A total of 98 patients(98 teeth) in our hospital from June 2018 to May 2019 were randomly divided into conventional group(n=49 cases, 49 pieces) and 3D group(n=49 cases, 49 pieces). The patients of conventional group were implanted with the aid of traditional implant guide plate, and the patients of 3D group were implanted with 3D printing guide technology. The accuracy and satisfaction of the two groups were compared. After 12 months of follow-up, the probing depth, implant success rate and bone resorption were compared between the two groups. Results: The deviation values of buccolingual, mesial, distal and vertical directions of implant tip and neck in 3D group were significantly less than those in conventional group( P<0.05). The buccolingual, proximal and distal deviation values of implant in 3D group were significantly lower than those in conventional group( P<0.05), while the satisfaction of 3D group was significantly higher than that of conventional group( P<0.05). There was no significant difference in probing depth and bone resorption between 3D group and conventional group( P>0.05). There were no significant difference in the success rate of implantation between the two groups at 3 months and 6 months after operation( P>0.05), but the implantation success rate after 9 months and 12 months of follow-up in 3D group were significantly higher than that in conventional group( P<0.05). Conclusion: 3D printing guide plate technology helps to reduce the error of restoration angle and position of patients with dentition defect, and ensure the accuracy of dental implant. Reference | Related Articles | Metrics Select Study and analysis of aesthetic value and clinical effect of dental implant in repairing dentition defect ZHANG Wenjie Chinese Journal of Oral Implantology    2020, 25 (4): 158-160.   DOI: 10.12337/zgkqzzxzz.2020.12.003 Abstract （226）      PDF （504KB）（234）       Knowledge map    Save Objective: To analyze the clinical effect and aesthetic value of dental implant repair for dentition defect. Methods: 60 patients with dentition defect treated in our hospital from January to December 2019 were studied. They were divided into two groups according to the treatment method. the control group(n=30) underwent implement routine repair, and the observation group(n=30) underwent dental implant restoration. The therapeutic effect and aesthetic value of the two groups of patients were observed and compared. Results: After half-year follow-up review, the control group was significantly lower than the observation group in terms of language function, masticatory function, comfort, retention and aesthetic effect, and the total satisfaction of patients with dentition aesthetics in the control group(73.33%) was also significantly lower than that in the observation group(96.67%), the clinical effect and aesthetic value in the observation group were higher than those in the control group, and the differences between the groups were statistically significant. Significance( P<0.05). Conclusion: Dental implantation can effectively improve the dental function and aesthetics of patients, and has significant curative effect and high patient satisfaction, which is of great research value. Reference | Related Articles | Metrics page Page 1 of 2 Total 49 records First page Prev page Next page Last page