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Recent advances in the factors affecting the pathogenesis, diagnosis, and treatment of peri-implantitis Yan Fuhua, Song Shiyuan Chinese Journal of Oral Implantology    2023, 28 (6): 402-409.   DOI: 10.12337/zgkqzzxzz.2023.12.003 Abstract （1545）      PDF （1334KB）（3746）       Knowledge map    Save Oral implant therapy is one of the most common methods for restoring defective and missing dentition. Peri-implantitis is a prevalent biological complication of implant therapy, characterized by inflammation of the peri-implant mucosa and subsequent progressive loss of supporting bone. The occurrence of peri-implantitis can impact the prognosis of implant restorations or even lead to implant failure, significantly affecting the patient's health and quality of life. Therefore, reducing the risk factors of peri-implantitis, timely diagnosis and effective treatments are of great importance to enhance the prognosis of implant therapy. This review describes the factors influencing the pathogenesis of peri-implantitis, the current diagnostic criteria, and therapeutic methods. Furthermore, it discusses emerging treatment modalities with potential clinical applications and reviews ongoing research progress. Reference | Related Articles | Metrics

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Clinical application of three-dimensional printed digital customized titanium mesh in guided bone regeneration for alveolar bone reconstruction Wang Tingting, Wang Feng, Wu Yiqun Chinese Journal of Oral Implantology    2022, 27 (4): 208-216.   DOI: 10.12337/zgkqzzxzz.2022.08.003 Abstract （698）      PDF （1445KB）（3659）       Knowledge map    Save Severe alveolar bone defects seriously affect dental implant placement and its long-term performance. Guided bone regeneration（GBR）as a reliable technique is able to achieve predictable bone augmentation. Three-dimensional printed digital customized titanium mesh is a new technique to obtain alveolar bone augmentation.For patients with severe alveolar bone defects, the preoperative examination is performed, the information of alveolar and dentition is obtained by radiographic examination and oral scan or model scan respectively,then the implants position is placed according to the principle of prosthetic-driven implant placement. The extent of bone augmentation and the shape of customized titanium mesh are designed with software, and then the digital customized titanium mesh is manufactured with 3D printing technology. The application of customized titanium mesh is conducive to reconstruct the three-dimensional shape of alveolar ridge precisely,and individually. The aim of this article is to summarize pre-opreative evaluation of patients, the key points of the design, clinical application and precautions of customized titanium mesh, in order to further promote its wide and safe application in clinical practice. Reference | Related Articles | Metrics

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Treatment decision-making and prognosis assessment of peri-implantitis Xu Shulan, Zhu Yuanxi Chinese Journal of Oral Implantology    2023, 28 (6): 394-401.   DOI: 10.12337/zgkqzzxzz.2023.12.002 Abstract （553）      PDF （1706KB）（2963）       Knowledge map    Save Peri-implantitis is a common biological complication of dental implant treatment, and it is one of the significant causes of implant failure as well. The treatment decision-making and prognosis assessment of peri-implantitis present two major problems for implantologists in clinical practice. Evidence-based treatment decision-making and accurate prognosis assessment could help doctors propose appropriate treatment approaches and guide patients to conduct oral self-care and systemic factors control according to their own conditions, aiming for more a streamlined treatment process and better clinical outcomes. This literature review provides a comprehensive overview of the treatment decision-making and prognosis assessment of peri-implantitis, discusses its research progress and clinical recommendations, and puts forth suggestions for further research. Reference | Related Articles | Metrics

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Research advances in the production process of dental collagen membrane Shu Qianyi, Su Yucheng Chinese Journal of Oral Implantology    2022, 27 (6): 358-364.   DOI: 10.12337/zgkqzzxzz.2022.12.006 Abstract （619）      PDF （1076KB）（2734）       Knowledge map    Save Guided bone regeneration (GBR) is an important technique in implant dentistry, in which oral collagen membranes play a key role. According to the production process, oral collagen membranes can be divided into acellular matrix membranes, purified collagen membranes and recombinant collagen membranes. At present, acellular membranes are main ones used clinically. Different types of collagen membranes have similarities and differences in production processes, and different production processes also have different effects on the properties of collagen membranes. This paper reviews the classification, production processes, comparison of different collagen membranes and the improvement of collagen membranes. Reference | Related Articles | Metrics

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Exploration and consideration on clinical solutions for complex alveolar bone defects Li Jinmeng, Li Xiaoban, Zhang Jian Chinese Journal of Oral Implantology    2022, 27 (5): 285-291.   DOI: 10.12337/zgkqzzxzz.2022.10.005 Abstract （719）      PDF （1566KB）（2518）       Knowledge map    Save Surgeons and patients find it challenging to reconstruct the complex alveolar bone defects clinically. For complex alveolar bone defects, surgeons are responsible for making the most appropriate surgical plan, which requires them to fully understand the indications and technical key points of the existing bone augmentation techniques, and then choose an appropriate method to complete the alveolar bone defect reconstruction and the following implant placement. Based on clinical experience and literature review, the author summarizes the classification of alveolar bone defects, and focuses on the most commonly used bone augmentation techniques during clinical practice, such as Onlay bone grafting, split bone block technique, sausage technique, GBR technique with non-resorbable membrane, and GBR technique using titanium mesh. This article aims to provide a reference for the reconstruction of complex alveolar bone defects for dental implant specialists. Reference | Related Articles | Metrics

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Applied anatomy and CBCT evaluation of blood supply and mucoperiosteum in the maxillary sinus Chen Deping, Liu Qian, Pi Xuemin, Pan Hong, Tan Baosheng, Su Yucheng Chinese Journal of Oral Implantology    2022, 27 (4): 259-263.   DOI: 10.12337/zgkqzzxzz.2022.08.011 Abstract （451）      PDF （1479KB）（2421）       Knowledge map    Save Reference | Related Articles | Metrics

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Biological principle of emergence profile design of implant prosthesis Yang Yufei, Gu Xinhua Chinese Journal of Oral Implantology    2022, 27 (6): 352-357.   DOI: 10.12337/zgkqzzxzz.2022.12.005 Abstract （606）      PDF （1106KB）（2225）       Knowledge map    Save The emergence profile design of the implant prosthesis will not only affect the aesthetic effect of the prosthesis, but also affect the health of the tissues around the implant. Good emergence profile design helps to form a perfect soft tissue barrier, prevent microbial invasion, protect surrounding soft and hard tissues, and avoid aesthetic and biological complications. On the basis of understanding the biological characteristics of the tissue around the implant and based on the patient's soft and hard tissue conditions, designing a reasonable implant placement position to protect the health of the tissue around the implant is crucial to the success of the implant and also a necessary factor for the design of the emergence profile. Reference | Related Articles | Metrics

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Root cause analysis of 3 cases of adverse events involving swallowing and aspiration in dental implant procedures Jiao Mingxiu, Bao Xianjing, Chen Haixia Chinese Journal of Oral Implantology    2023, 28 (5): 347-350.   DOI: 10.12337/zgkqzzxzz.2023.10.009 Abstract （332）      PDF （1400KB）（2080）       Knowledge map    Save Objective The retrospective analysis was conducted on three cases of adverse events involving swallowing and aspiration in our hospital by applying the root cause analysis method. Methods The root causes of the events were identified in terms of systematic processes by creating a cause-and-effect diagram. Results The root causes of these incidents were identified in the system process: the lack of standardized preventive measures, insufficient patient evaluation, inadequate preoperative precautionary measures, and treatment positions that could easily result in swallowing and aspiration. Conclusion To address these three root causes, specific improvement measures were implemented: conducting adequate preoperative patient evaluations, enhancing preoperative precautionary measures, adjusting patient treatment positions, strengthening preventive measures during procedures, and enhancing supervision of such incidents. Reference | Related Articles | Metrics

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Surface decontamination in peri-implantitis management Dong Xiaoxiao Chinese Journal of Oral Implantology    2023, 28 (6): 437-443.   DOI: 10.12337/zgkqzzxzz.2023.12.008 Abstract （251）      PDF （1359KB）（1916）       Knowledge map    Save Surface decontamination of implants is much more difficult than that of natural teeth. Incomplete decontamination is the main reason causing peri-implantitis treatment failure. This article reviews the implant surface decontamination modalities: mechanical decontamination methods, chemical decontamination methods and physical methods. Mechanical decontamination methods are the treatment most well documented. It is the foundation for peri-implantitis treatment. Nowadays, there is no gold standard for management of peri-implantitis. A combination of different decontamination modalities is recommended. Reference | Related Articles | Metrics

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Influence factors of achieving predictable maxillary sinus bone augmentation Zhao Yang Chinese Journal of Oral Implantology    2024, 29 (3): 289-294.   DOI: 10.12337/zgkqzzxzz.2024.06.016 Abstract （2448）      PDF （1348KB）（1857）       Knowledge map    Save Maxillary sinus floor elevation is a common surgical method to solve the problem of insufficient bone mass in the posterior maxillary region. Based on the special background of maxillary sinus bone augmentation, we explore the principles of achieving predictable maxillary sinus bone augmentation results from the mechanism of osteogenesis, which can be considered from four aspects: bone contact area, angiogenesis, stability of space, and safe healing. Reference | Related Articles | Metrics

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The decision-making principles of sinus floor elevation Pi Xuemin, Liu Qian, Chen Deping, Ren Bin, Pan Hong, Su Yucheng Chinese Journal of Oral Implantology    2022, 27 (5): 322-326.   DOI: 10.12337/zgkqzzxzz.2022.10.011 Abstract （614）      PDF （1653KB）（1809）       Knowledge map    Save Reference | Related Articles | Metrics

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Research progress of 3D printing individualized titanium mesh for complex bone augmentation Ji Ping Chinese Journal of Oral Implantology    2022, 27 (6): 334-339.   DOI: 10.12337/zgkqzzxzz.2022.12.002 Abstract （803）      PDF （1160KB）（1786）       Knowledge map    Save Complex and severe alveolar bone defect is an important factor affecting the esthetic and long-term stability of dental implants. Compared to conventional bone augmentation, digital and custom bone augmentation could reduce operation time and improve the accuracy of bone augmentation. Three-D printing individualized titanium mesh (3D-PITM) shows good biocompatibility and space-making capacity, which could accurately reconstruct the alveolar bone contour. Thus, 3D-PITM has been gradually applied in the bone augmentation surgery. This paper introduces the application and research progress of 3D-PITM used for complex bone augmentation. Reference | Related Articles | Metrics

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Research progress of the socket shield technique Luo Zhen, Liu Hong, Wu Wangxi Chinese Journal of Oral Implantology    2023, 28 (2): 119-123.   DOI: 10.12337/zgkqzzxzz.2023.04.009 Abstract （1151）      PDF （1177KB）（1751）       Knowledge map    Save The socket shield technique is a new technology emerging in oral implantology in the last decade or so. Its introduction is to fundamentally interrupt the process of physiologic resorption in the alveolar socket after the tooth extraction. But no consensus has been reached on the standard operation and long-term effect of this treatment. Meanwhile with the development of digital technology, how to accurately and efficiently apply the socket shield technique has gradually attracted attention. The clinical procedure, the complication, the evaluation index and the digital application of the socket shield technique will be reviewed in this paper, hoping to provide a theoretical basis for the promotion of this technique in oral implantology. Reference | Related Articles | Metrics

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Implant failure caused by mandible fibro-osseous lesions: a case report and the literature review Zhao Man, Zheng Yaqi, Yan Zhengbin, Li Xiaomin, Yang Xiaoyu Chinese Journal of Oral Implantology    2022, 27 (6): 346-351.   DOI: 10.12337/zgkqzzxzz.2022.12.004 Abstract （377）      PDF （1462KB）（1747）       Knowledge map    Save A case of implanting in the bilateral mandibular posterior area simultaneously with different prognosis was reported. Finally, the implant on the right side was loose and removed after six months, which was failed without osseointegration. Otherwise, a good osseointegration was formed on the left side, and the implant was loaded routinely. In the right mandibular posterior area, there were fibro-osseous lesions with unremarkable imaging findings, which were finally diagnosed by histopathology. Mandible fibro-osseous lesions mainly refer to a mixture of pathological changes of fibrosis and ossification in technology. The performance of such lesions is not obvious or present with similar symptoms and radiographic appearances, which lead to difficulties in diagnosis. In this article, the causes of failure in this case were analyzed. Furthermore, the features of ossifying fibroma and fibrous dysplasia in clinical manifestation, radiology, histopathology and so on were reviewed in this article, in order to provide a risk assessment and early warning of implants with fibro-osseous lesions for clinic. Reference | Related Articles | Metrics

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Progress in evaluation methods of dental implant placement accuracy Su Tianyue, Teng Weiwei, Wang Qi, Shu Qianyi, Zhou Libo Chinese Journal of Oral Implantology    2022, 27 (4): 248-253.   DOI: 10.12337/zgkqzzxzz.2022.08.009 Abstract （532）      PDF （1171KB）（1666）       Knowledge map    Save The application of digital technologies such as static guide, dynamic navigation and dental implant robot in the field of dental implant achieves the purpose of accurate implant placement. However, there is no unified standard for accurate recording and evaluation of dental implant sites, it is particularly important to select high-resolution postoperative evaluation methods to accurately reflect the accuracy of dental implants. At present, the commonly used instruments for assessment after dental implant surgery include CBCT, intraoral scanner, desktop optical scanner, and three-coordinate measuring instrument. In drilling experiments in other fields, calipers, plug gauges, digital measuring instruments such as three-coordinate measuring machine and laser tracker are also used for measurement, which can provide reference for the evaluation of the accuracy of dental implant implantation. In this paper, the principles, precision and characteristics of the accuracy evaluation methods involved in the drilling experiments of dental implants are reviewed, in order to provide a theoretical reference for the accuracy evaluation of dental implants in experiments and clinical practice. Reference | Related Articles | Metrics

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A case of teeth extraction and immediate implants with the application of ridge splitting technique in anterior mandibular alveolar ridge Shi Wen, Wang Miaozhen, Liu Feng Chinese Journal of Oral Implantology    2022, 27 (6): 340-345.   DOI: 10.12337/zgkqzzxzz.2022.12.003 Abstract （577）      PDF （1500KB）（1593）       Knowledge map    Save In the anterior mandibular aesthetic area, there is usually sufficient bone in the vertical direction and insufficient bone in the buccolingual and horizontal direction. In this paper, we present a case of a patient with multiple mandibular incisors to be extracted due to chronic periodontitis, in which the ridge splitting was applied to the anterior mandibular alveolar ridge with teeth extraction and immediate implant placement simultaneously. Teeth extraction, ridge splitting and implant placement were performed at the same time, and the second surgery was performed 6 months after the operation, and temporary restoration and permanent restoration were completed by digital technology 7 and 8 months after the first surgery.Teeth extraction and immediate implant placement with ridge splitting procedure allows the clinician to effectively augment the horizontal bone, improve implant success rate, reduce the number of operations and avoid a second operative area. The simultaneous application of ridge splitting technique with tooth extraction and implant placement with proper indications and operation details may have certain advantages over other implant options. Reference | Related Articles | Metrics

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Characterization of peri-implant microbes and their changes under diseased conditions Liu Yue, Zhao Yajun, Liu Jin, Du Mi, Lan Jing Chinese Journal of Oral Implantology    2023, 28 (1): 35-39.   DOI: 10.12337/zgkqzzxzz.2023.02.007 Abstract （381）      PDF （1514KB）（1500）       Knowledge map    Save Peri-implant disease is a biological complication that occurs in the peri-implant tissue with plaque biofilm as the initiating factor. The initial colonization, homeostasis, and dysbiosis of peri-implant submucosal microbes are closely related to the healthy and diseased states of the peri-implant. This article reviews the research on the characterization of peri-implant microbes and their changes in the diseased states. The results showed that there are significant differences in the structure of submucosal microbes between states of healthy peri-implant, peri-implant mucositis and peri-implantitis. The count of submucosal periodontal pathogens and the complexity of microbes increased when peri-implant disease occurred. The clinical manifestations of peri-implant disease were correlated with the variety in the type and quantity of microbes. Reference | Related Articles | Metrics

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Application of robots in the field of dental implantology Chen Jiang Chinese Journal of Oral Implantology    2022, 27 (5): 274-279.   DOI: 10.12337/zgkqzzxzz.2022.10.003 Abstract （801）      PDF （1495KB）（1478）       Knowledge map    Save Recently, with the development of digital technology in the field of dental implantology, from static computer-assisted implant surgery to dynamic navigation, and then to today's dental implant robot system, the accuracy of implants has been a hot topic in the field of dental implantology. After clinical application, on the basis of expounding the classification, workflow, and application status of oral implant robots, this paper also discusses the shortcomings and thinks about the coming era of dental implant robots, in order to provide a reference for further application and development of oral implant robot in the future. Reference | Related Articles | Metrics

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The decision-making principles of sinus floor elevation (part 3) Pi Xuemin, Liu Qian, Chen Deping, Ren Bin, Pan Hong, Su Yucheng Chinese Journal of Oral Implantology    2023, 28 (1): 58-66.   DOI: 10.12337/zgkqzzxzz.2023.02.011 Abstract （432）      PDF （1350KB）（1467）       Knowledge map    Save Reference | Related Articles | Metrics

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Decision tree for the selection of immediate restoration options after full-arch implant placement Peng Lingyan, Wang Yong, Su Yucheng Chinese Journal of Oral Implantology    2022, 27 (6): 381-386.   DOI: 10.12337/zgkqzzxzz.2022.12.010 Abstract （587）      PDF （1568KB）（1334）       Knowledge map    Save Today, immediate fixed restoration after full-arch implant placement is being used by more and more clinicians and patients. New technologies, devices and software continue to emerge, and there is some confusion in clinical application. To standardize the application of this protocol and provide patients with a variety of options, according to the article “Immediate temporary restoration options after full-arch implant placement” published in June 2022 in this journal, the author team further establishes this decision tree to solve such clinical cases, with the aim of providing implant prosthetic dentists with advices and references of diagnosis and treatment, which dentists can adopt with a comprehensive decision-making based on clinical situation, dentist's experience, available equipment and software. Reference | Related Articles | Metrics

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Application of socket-shield technique for immediate implant placement in aesthetic area Zhao Yaoyu, Yan Qi, Shi Bin Chinese Journal of Oral Implantology    2022, 27 (6): 376-380.   DOI: 10.12337/zgkqzzxzz.2022.12.009 Abstract （781）      PDF （1067KB）（1290）       Knowledge map    Save Socket-shield technique has the advantages of maintaining alveolar bone dimension, reducing labial soft tissue recession and improving the aesthetic effect of restoration. An increasing number of oral implantology clinicians have become familiar with this technique in recent years. Through a literature review, this paper summarized and discussed the proposal and development of this technique, clinical operation process and medical evidence, so as to provide a reference for clinicians. Reference | Related Articles | Metrics

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Expert consensus on the clinical application of dental implant robots (first edition) Chen Jiang, Su Yucheng, Shen Guofang, Zhou Yanmin, Man Yi, Wu Yiqun, Yang Guoli, Zhang Yufeng, Tang Chunbo, Liu Qian, Fu Gang, Du Liangzhi, Liu Feng, Gao Yongbo, Yang Xingmei, Chen Deping, Chen Zhuofan, Xu Shulan, Wang Liping, Zhang Sihui Chinese Journal of Oral Implantology    2023, 28 (3): 134-139.   DOI: 10.12337/zgkqzzxzz.2023.06.002 Abstract （881）      PDF （1438KB）（1281）       Knowledge map    Save Dental implant robot is a new clinical technology in the field of dental implantology in recent years. In view of its high accuracy and stability, it has been applied in many professional fields of stomatology, such as dental implant, oral and maxillofacial surgery, etc. On the basis of clinical application and document retrieval, this consensus discusses the definition of related terms, clinical application requirements, operation specifications and risk prevention of dental implant robots, putting forward consensus views based on the clinical operation experience of some domestic experts. Reference | Related Articles | Metrics

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A novel guided implant placement solution for patients treated with orthodontic-prosthodontic-implant combined therapy : a case report Wang Zixiao, Xia Shuchi, Wang Qing Chinese Journal of Oral Implantology    2022, 27 (5): 299-303.   DOI: 10.12337/zgkqzzxzz.2022.10.007 Abstract （415）      PDF （1691KB）（1264）       Knowledge map    Save Reference | Related Articles | Metrics

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Expert consensus on complications of sinus floor elevation: displacement of dental implant into the maxillary sinus (first edition) Chinese Society of Oral Implantology Chinese Journal of Oral Implantology    2022, 27 (5): 264-268.   DOI: 10.12337/zgkqzzxzz.2022.10.001 Abstract （961）      PDF （1172KB）（1246）       Knowledge map    Save Dental implantation at the posterior maxillary region involving the sinus has become a routine treatment for the edentulous patients. However, due to medical or pathogenic factors, various postoperative complications may occur, among which the relatively rare but serious complication is the displacement of dental implant into the maxillary sinus. At present, there is still lack of guideline or consensus on the management of this complication at home and abroad. Therefore, the Chinese Society of Oral Implantology organized experts from different domestic universities to discuss and draft this consensus from the aspects of pathogenesis, clinical manifestations, treatment plans and prevention methods, aiming to provide clinicians with practical measures for the prevention and treatment of the complication of implant displacement into the maxillary sinus. Reference | Related Articles | Metrics

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The application of dynamic navigation system in dental implant training Jiang Ruifang, Zhang Yanfang, Li Xue, Liu Liu, Xue Peng Chinese Journal of Oral Implantology    2022, 27 (4): 254-258.   DOI: 10.12337/zgkqzzxzz.2022.08.010 Abstract （426）      PDF （1341KB）（1241）       Knowledge map    Save Objective To explore the application of dynamic navigation technique in dental implant training. Methods 20 postgraduate students were included in the training course which combined theoretical course with model simulation operation. The theoretical course of implant dentistry was delivered first and subsequently all students performed free-hand and dynamic navigation implant surgery on the simulation jaw models in sequence. At the end of the course, an error analysis between the two techniques was conducted and a questionnaire was registered by the students, focusing on the comparisons of advantages and disadvantages between dynamic navigation system and free hand surgery, and put forward suggestions for improvement. ResultThe values of implant platform deviation, apical deviation and angle deviation in the dynamic navigation group were lower than those in the free-hand operation group, and the difference was statistically significant (P<0.05), indicating that the students were more accurate in implant placement under the assistance of dynamic navigation.The results of the questionnaire survey show that dynamic navigation helps to improve the students' hands-on ability, increase their interest in learning, and the students' satisfaction is high. Conclusions The application of the dynamic navigation system in the implant training course has exhibited a satisfying teaching effect and is worthy of spreading. Reference | Related Articles | Metrics

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Research advances in treatment of tooth agenesis Geng Chenxin, Liu Yang, Han Dong Chinese Journal of Oral Implantology    2024, 29 (3): 224-230.   DOI: 10.12337/zgkqzzxzz.2024.06.006 Abstract （340）      PDF （1368KB）（1218）       Knowledge map    Save Tooth agenesis is the most common dental developmental anomaly in humans, which can cause significant chewing, pronunciation, aesthetic and craniofacial development problems. Due to the unique characteristics of tooth agenesis, its treatment is very time-consuming and costly, imposing huge economic burdens and mental stress on patients. The treatments include a sequential therapeutic strategy with a multidisciplinary team of pediatric dentistry, prosthodontics, oral and maxillofacial surgery, orthodontics, oral implantology, and other backgrounds, as well as emerging methods such as targeted molecular therapy and tissue engineering. This review provides an update on the knowledge on the characteristics of tooth agenesis, traditional treatments, and the rising fields of molecular therapy and tissue engineering. We also discuss the treatment effects of each method, aiming to provide a reference for the treatment of tooth agenesis. Reference | Related Articles | Metrics

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Application of platform technology in the treatment of peri-implantitis combined with implant infraposition in the aesthetic zone: a case report and literature review Lin Zhihui, Wang Xi, Man Yi Chinese Journal of Oral Implantology    2023, 28 (6): 424-429.   DOI: 10.12337/zgkqzzxzz.2023.12.006 Abstract （262）      PDF （1718KB）（1209）       Knowledge map    Save In the process of long-term functional use of implant-supported dentures, the occurrence of peri-implant biological complications is often difficult to avoid due to various factors such as the patient's overall health condition, surgical procedures, implant restorations, and prosthetic techniques. Additionally, during the long-term clinical follow-up of patients with aesthetic zone implant restorations, it is often observed that the incisal edge of implant restoration is positioned lower towards the root compared to the contralateral natural tooth, indicating implant infraposition. This article reports a case of aesthetic zone implant peri-implantitis combined with implant infraposition treated using platform techniques. In this case, non-surgical treatment was used to control inflammation in the surgical area before the surgery, and connective tissue platform techniques were employed during the surgery to increase soft tissue volume around the implant. Temporary restoration was performed after 3 months postoperatively, followed by the final restoration after 6 months. Short-term treatment results showed that for cases of aesthetic zone implant peri-implantitis combined with implant infraposition, the use of connective tissue platform techniques can effectively achieve soft tissue reconstruction in the surgical area and reduce aesthetic risks. Reference | Related Articles | Metrics

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A clinical study on the effect of horizontal bone augmentation with collagen membrane fixation for guided bone regeneration Pang Liping, Zhong Xinlan, Wang Weian, Li Shuigen Chinese Journal of Oral Implantology    2022, 27 (4): 224-228.   DOI: 10.12337/zgkqzzxzz.2022.08.005 Abstract （362）      PDF （1365KB）（1186）       Knowledge map    Save Objective To measure and analyze the changes of hard tissue before and after guided bone regeneration in patients with moderate to severe alveolar bone defects. Methods Guided bone regeneration surgery using absorbable membrane fixed with pins was performed. And the bone graft with the xenograft bone plus autologous bone （about 50% each）were used in the surgery. CBCT (cone beam computed tomography) was performed before and after surgery. The data were registered by three-dimensional reconstruction, and the changes of bone width and alveolar bone volume at 2 mm and 8 mm from the alveolar crest before and after guided bone regeneration were measured. The results were statistically analyzed by paired t test. Results After guided bone tissue regeneration, the bone width from the crest of alveolar ridge at 2 mm increased from （5.59±3.82）mm to （11.75±4.65）mm; while the bone width at 8 mm increased from （7.72±3.32）mm to （13.58±4.26）mm. The difference in bone width increment was statistically significant (P<0.01), The difference in volume change of the alveolar bone was statistically significant (P < 0.01). Conclusion Guided bone regeneration surgery using absorbable membrane fixed with pins and xenograft combining autologous bone, has a good horizontal increment effect on the alveolar ridge with moderate to severe alveolar bone defect. Reference | Related Articles | Metrics

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Fluorinated porcine-derived bone substitute: from concept to practice Liu Quan, Chen Shoucheng, Chen Zhuofan Chinese Journal of Oral Implantology    2022, 27 (5): 280-284.   DOI: 10.12337/zgkqzzxzz.2022.10.004 Abstract （462）      PDF （1412KB）（1183）       Knowledge map    Save Biological calcium phosphate-based bone substitutes have been widely used in the rehabilitation of bone defects in implant dentistry, due to their great biocompatibility and osteoconductivity. It has become an important optimizing strategy for bone regeneration materials through trace elements incorporation and controlled release to promote osteogenesis by regulating the regenerative microenvironment. In recent years, a series of studies have shown that fluorinated porcine bone substitute has good mechanical properties and the capacity of fluorine slow-release which could promote bone regeneration by activating the Wnt/β-catenin signaling pathway and regulating the immune microenvironment. Such an in vitro effect of fluorinated porcine bone substitute has been evidently proven in a variety of subsequent studies in vivo. This article summarized the research progress of the fluorinated porcine bone substitute so as to provide a reference for related basic research and clinical application. Reference | Related Articles | Metrics

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Clinical procedure of transalveolar technique for sinus floor elevation Chen Deping, Liu Qian, Pi Xuemin, Pan Hong, Ren Bin, Su Yucheng Chinese Journal of Oral Implantology    2023, 28 (2): 128-132.   DOI: 10.12337/zgkqzzxzz.2023.04.011 Abstract （482）      PDF （1348KB）（1167）       Knowledge map    Save The transalveolar technique for sinus floor elevation is a common surgical approach when there is insufficient vertical bone height in the maxillary posterior region for implant treatment. This article describes the evolution of this technique and the technical points of the clinical approach. It is very difficult to assess the intactness of the maxillary sinus mucoperiosteum in transalveolar technique when simultaneous bone augmentation is required. The use of electronic endoscope is a very helpful method to better confirm the preparation depth of the implant site and the status of the maxillary sinus mucoperiosteum, thus effectively avoiding complications of bone augmentation due to the maxillary sinus mucoperiosteum perforation. This article focuses on the clinical procedures and considerations in the use of transalveolar technique for sinus floor elevation to provide a reference for clinicians to improve the predictability of this technique. Reference | Related Articles | Metrics

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Expert consensus on titanium mesh supported guided bone regeneration Editorial Board of Chinese Journal of Oral Implantology Chinese Journal of Oral Implantology    2024, 29 (2): 95-100.   DOI: 10.12337/zgkqzzxzz.2024.04.001 Abstract （809）      PDF （1401KB）（1159）       Knowledge map    Save Nowadays, the clinical application of titanium mesh supported guided bone regeneration (TMs-GBR), especially using 3D printing individualized titanium mesh (3D-PITM), is increasing, serving as a reliable solution for bone augmentation in various cases of bone defects, particularly complex ones encountered during implant surgery. Given the technical sensitivity of TMs-GBR and the higher risk of complications such as titanium mesh exposure, as well as the current lack of relevant guidelines or international consensus, the editorial board of the Chinese Journal of Oral Implantology organized discussions among relevant experts and drafted this consensus, aiming to provide clinical reference for practitioners. Reference | Related Articles | Metrics

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Expert consensus on bone grafting materials for maxillary sinus floor elevation: bone substitutes Chinese Society of Oral Implantology Chinese Journal of Oral Implantology    2023, 28 (1): 3-8.   DOI: 10.12337/zgkqzzxzz.2023.02.002 Abstract （871）      PDF （1435KB）（1107）       Knowledge map    Save Autogenous bone has long been considered the "gold standard" for maxillary sinus floor elevation. However, secondary iatrogenic injury, limited source, easy resorption, and high risk of complications at donor sites limit its clinical application. Thus, the search for and selection of an ideal bone substitute for autologous bone becomes the development trend of bone augmentation technique. In this paper, the characteristics of three major bone substitutes including allograft, xenograft, and alloplastic graft, as well as the implant survival rate after the above bone substitutes were used on the maxillary sinus floor were summarized. Reference | Related Articles | Metrics

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Research progress on nano-silver antibacterial materials in the application in oral implantology Cheng Wen, Ma Xiaoting, Shen Yajie, Lv Shouyin, Shao Bo Chinese Journal of Oral Implantology    2023, 28 (1): 40-46.   DOI: 10.12337/zgkqzzxzz.2023.02.008 Abstract （449）      PDF （1498KB）（1073）       Knowledge map    Save As a new type of highly effective nanometer antibacterial material, nano-silver has a broad-spectrum antibacterial ability, high antibacterial efficiency, and good anti-inflammatory properties. At present, it is widely used in various fields of stomatology. The antibacterial mechanism and application of nano-silver was reviewed for the field of oral implantology, and the antibacterial research prospect of nano-silver were forecasted. Reference | Related Articles | Metrics

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Clinical implications of 3-dimensional osteogenesis model for maxillary sinus to promote osteogenesis in maxillary sinus Zhou Yanmin, Qin Qiuyue Chinese Journal of Oral Implantology    2023, 28 (2): 69-76.   DOI: 10.12337/zgkqzzxzz.2023.04.001 Abstract （492）      PDF （2718KB）（1002）       Knowledge map    Save The "3-dimensional osteogenesis model for maxillary sinus" (3D-OMMS) elucidated the osteogenic mechanism of maxillary sinus floor elevation. It provides a scientific theoretical basis for the treatment of maxillary sinus floor elevation in patients with missing maxillary posterior teeth. This manuscript reports the clinical application of "3D-OMMS" in the implants including single tooth or multiple teeth, immediate and delayed implants, transalveolar sinus floor elevation and lateral window approach sinus floor elevation, respectively. Preoperative and postoperative cone-beam computed tomography（CBCT）images were used to evaluate the osteogenic effect of the maxillary sinus region. In conclusion, the application of 3D-OMMS can form a three-dimensional space with diversified osteogenic directions in the maxillary sinus, shorten the vascularization osteogenesis path, accelerate the osteogenic process, improve the quality of new bone, and increase the success rate of implantation, which can be widely used in clinical practice. Reference | Related Articles | Metrics

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Research progress of zinc-based biodegradable metals for biological barrier membrane Xu Shulan, Chen Jiahao Chinese Journal of Oral Implantology    2023, 28 (1): 19-25.   DOI: 10.12337/zgkqzzxzz.2023.02.004 Abstract （583）      PDF （1549KB）（998）       Knowledge map    Save Guided Bone Regeneration (GBR) is the most common bone augmentation procedure in implant dentistry, and the effect of bone augmentation is determined by the material properties of the biological barrier membranes. However, are current biological barrier membranes are insufficient for all clinical requirements, including excellent biocompatibility, high mechanical properties, controllable degradation behavior, superior bioactivity, and easy clinical management. It is required to develop and investigate a novel material for the biological barrier membrane. Biodegradable metals (BMs) refer to metals that are intended to degrade in vivo. Among them, zinc(Zn)-based BMs are regarded as a novel generation of biological barrier membrane materials due to their excellent material properties. Nevertheless, Zn-based biological barrier membranes have been still in the stage of research and development. Based on our previous research studies and considering the future clinical applications, this paper systematically reviewed the research status and drawbacks of Zn-based biological barrier membranes in terms of four aspects: biocompatibility, mechanical properties, biodegradability, and bioactivity, providing scientific evidence to promote its clinical transformation. Reference | Related Articles | Metrics

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Clinical assessment of evaluating passive fit of implant-supported fixed prostheses Guo Yongqing, Ma Yun, Yu Hao Chinese Journal of Oral Implantology    2022, 27 (4): 243-247.   DOI: 10.12337/zgkqzzxzz.2022.08.008 Abstract （475）      PDF （1191KB）（992）       Knowledge map    Save Passive fit is closely associated with the long-term success rate of implant-supported prostheses. Therefore, clinical assessment of passive fit is important in the implant therapy. Based on the current evidence, an absolutely passive fit cannot be obtained, and a certain level of misfit was considered to be clinically acceptable. Various methods are applied to assess the passive fit of prostheses, which are mainly divided into two aspects: passiveness and marginal fit. The screw resistance test could be used to assess passiveness. Regarding marginal fit, the following methods are available: alternate finger pressure, visual inspection, tactile sensation, radiographs, one-screw test and disclosing materials. Each assessment method has its advantages and limitations. This article briefly reviewed the definition of passive fit and the common clinical assessment methods to provide references for clinical diagnosis and treatment. Reference | Related Articles | Metrics

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Selection of animal models simulating the human jawbone for in vivo experiments on oral implants Wang Qi, Teng Weiwei, Su Tianyue, Shu Qianyi, Li Cuiying, Wang Xinyu, Zhou Libo Chinese Journal of Oral Implantology    2023, 28 (4): 285-289.   DOI: 10.12337/zgkqzzxzz.2023.08.013 Abstract （304）      PDF （1258KB）（964）       Knowledge map    Save With the improvement of our national living standard and the popularization of dental implant technology, dental implants have become the first choice for the restoration of partially or completely edentulous jaws. To improve the surgical skill level of clinicians and develop excellent implants are important measures to improve the success rate of implant restorations, and neither physician training nor new implant development can be accomplished without preclinical experiments on animal models. Therefore, this paper reviews the animals and animal models suitable for dental implant surgery. The results of literature analysis show that there are a variety of animals that can be used to simulate the human jawbone for implant surgery or for testing the new implants developed. Pigs are the closest animal model to the human jawbone in terms of feeding habits, ethical considerations, physical size, temperament, structural characteristics, tissue composition, and bone remodeling of the jawbone tissue. However, due to the different experimental purposes, different animal models can be selected to carry out experiments. Additionally, an array of animal models can be concurrently employed to meet diverse research needs and achieve clinical treatment objectives. Reference | Related Articles | Metrics

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Reflections on the sole application of xenograft of low substitution rate for maxillary sinus floor elevation Wu Shiyu, Chen Zhuofan, Huang Baoxin, Chen Zetao, Liu Yuanxiang Chinese Journal of Oral Implantology    2023, 28 (5): 327-331.   DOI: 10.12337/zgkqzzxzz.2023.10.006 Abstract （261）      PDF （1455KB）（930）       Knowledge map    Save The maxillary sinus floor elevation is a key technique for restoring the vertical bone volume in the patient’s posterior region. However, the maxillary sinus floor elevation still has limitations such as significant trauma, sometimes requiring a second surgical area, and a long treatment cycle. These limitations are closely related to its osteogenic mechanism and the bone augmentation protocol. The article summarizes the evolution of the “gold standard” of bone augmentation materials for maxillary sinus floor elevation from the perspectives of spatial maintenance ability and new bone formation quality based on the mechanism of sinus cavity osteogenesis, then focuses on the current clinical application status of simply using deproteinized bovine bone matrix, in order to provide ideas for standardized clinical treatment and conversion research. Reference | Related Articles | Metrics

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Research status on 3D printed individualized scaffold materials in alveolar bone augmentation Cheng Yi, Huang Haitao Chinese Journal of Oral Implantology    2023, 28 (2): 114-118.   DOI: 10.12337/zgkqzzxzz.2023.04.008 Abstract （389）      PDF （1165KB）（923）       Knowledge map    Save Patients with severe bone mass deficiencies require bone augmentation surgery prior to implantation, and the success depends on the stability of the bone graft material and the ability to maintain the bone regeneration space. The scaffolds provide the spatial structure and osteogenic environment for bone regeneration, which are critical to the effect of bone augmentation. With the development of computer-aided design and computer-aided manufacturing, 3D printed individualized scaffolds prepared from different materials have emerged. In this paper, the characteristics and applications of titanium mesh, polyetheretherketone mesh and absorbable polymer composite scaffold materials are discussed, and the application effects and future development directions are evaluated. Reference | Related Articles | Metrics

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Research progress on trace elements modification of PEEK implant Luo Guisheng, Liu Yumeng, Wang Penglai, Yuan Changyong Chinese Journal of Oral Implantology    2023, 28 (2): 109-113.   DOI: 10.12337/zgkqzzxzz.2023.04.007 Abstract （346）      PDF （1192KB）（916）       Knowledge map    Save Polyetheretherketone (PEEK) is a high-performance specialty plastic with good mechanical properties and biocompatibility and is easy to process and form, making it an alternative material for dental implants. However, the lack of biological activity and the easy accumulation of plaque limit the clinical application of PEEK in the field of oral implantology. At present, many scholars solve the problem of biological inertia and plaque attachment of PEEK through trace elements modification. Different trace elements have their own advantages. Strontium, tantalum, manganese, and other elements can promote osteoblast differentiation. Fluorine, silver, zinc, and other elements can inhibit the growth of inflammatory bacteria, and the co-modification of various trace elements gives PEEK implant more diversified properties. Reference | Related Articles | Metrics