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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 （1296）      PDF （1348KB）（898）       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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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 （932）      PDF （1334KB）（1136）       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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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 （822）      PDF （1177KB）（680）       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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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 （686）      PDF （1172KB）（876）       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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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 （624）      PDF （1435KB）（840）       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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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 （565）      PDF （1067KB）（420）       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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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 （463）      PDF （1653KB）（772）       Knowledge map    Save 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 （458）      PDF （1495KB）（681）       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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Influence of creating food escape grooves adjacent to marginal ridge on the perception of food impaction in implant-supported fixed prosthesis Zheng Jiabao, Gao Wenmo, Zuo Xiaoyun, Yang Bo, Luo Chenchen, Chen Ming Chinese Journal of Oral Implantology    2023, 28 (1): 26-29.   DOI: 10.12337/zgkqzzxzz.2023.02.005 Abstract （453）      PDF （1394KB）（404）       Knowledge map    Save Objective To investigate the effect of creating food escape grooves adjacent to marginal ridge on the improvement of food impaction around implant-supported prosthesis. Methods 41 patients with implant-supported prosthesis in the maxillary and mandibular molar regions complaining of distinct discomfort during chewing caused by food impaction around implants were selected. Food escape grooves were created adjacent to the marginal ridges of implant crowns. The patients were followed up regularly. Results All patients (100%) reported a significant improvement in symptoms of food impaction. Conclusion Creating food escape grooves adjacent to marginal ridge helps to improve the symptoms of food impaction and achieve a high level of patient satisfaction. 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 （434）      PDF （1568KB）（645）       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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Expert consensus on bone grafting materials for sinus floor elevation: bioactive agents, cell therapies and graft-free sinus floor elevation Chinese Society of Oral Implantology Chinese Journal of Oral Implantology    2022, 27 (6): 329-333.   DOI: 10.12337/zgkqzzxzz.2022.12.001 Abstract （434）      PDF （1062KB）（565）       Knowledge map    Save Sinus floor elevation is a reliable approach to solve the problem of vertical bone deficiency in the posterior maxillary area. At present, there are many bone grafting materials available for sinus floor elevation, but no consensus on their selection is achieved. This consensus focuses on bioactive agents, cell therapies and graft-free sinus floor elevation, and summarizes the results on their clinical application, hoping to provide a reference for the selection during clinical practice. Reference | Related Articles | Metrics

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Expert consensus on bone grafting materials for maxillary sinus floor elevation: autogenous bone Chinese Society of Oral Implantology Chinese Journal of Oral Implantology    2022, 27 (5): 269-273.   DOI: 10.12337/zgkqzzxzz.2022.10.002 Abstract （424）      PDF （895KB）（489）       Knowledge map    Save Autogenous bone is derived from the patient's own body and has osteogenic, osteoinductive and osteoconductive properties without the risk of immunological rejection or disease transmission. For this reason, autogenous bone has long been regarded as the "gold standard" of bone grafting materials. This article summarizes the biological properties of bone grafting materials, the harvest of autogenous bone, the osteogenesis process and the clinical efficacy of autogenous bone graft in the maxillary sinus floor, and the limitations of autogenous bone, based on evidence-based principles, and proposes a consensus view based on the clinical experience of some Chinese experts. 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 （422）      PDF （1160KB）（1075）       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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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 （419）      PDF （1500KB）（553）       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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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 （417）      PDF （1566KB）（897）       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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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 （386）      PDF （1437KB）（647）       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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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 （377）      PDF （2718KB）（651）       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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Clinical analysis of extraction site preservation using Bio-Oss Collagen after extraction of maxillary molars Yu Jiuyue, Jia Wenhao, Fang Li, Wang Jian, Li Jiangming, Liu Han, Guo Qili Chinese Journal of Oral Implantology    2023, 28 (2): 90-96.   DOI: 10.12337/zgkqzzxzz.2023.04.004 Abstract （377）      PDF （1591KB）（465）       Knowledge map    Save Objective To investigate a clinical treatment method for extraction site preservation using Bio-Oss Collagen after extraction of maxillary molars. Methods The clinical data of 6 cases were retrospectively analyzed, and all 6 patients were treated with Bio-Oss Collagen for extraction site preservation after extraction of maxillary molar teeth. These six cases met the following characteristics: the affected tooth was destructed in the alveolar bone in the area of its furcation due to periodontitis or combined periodontal-endodontic lesions, and needed to be extracted; the remaining bone height in the top central part of the alveolar ridge was less than 3.5 mm after the extraction of the affected tooth; the bone walls of the buccal, lingual, mesial and distal parts of the extraction socket were nearly intact. After extraction of the affected tooth, the granulation tissue in the alveolar socket was thoroughly removed. Bio-Oss Collagen was placed in the alveolar sockets and the soft tissues were cross-sutured to hold the graft in place. The sutures are removed 7-10 days after surgery. CBCT was taken preoperatively, immediately postoperatively and at six months postoperatively. The vertical height of the remaining alveolar ridge was measured using Mimics 20.0 at five sites: buccal and lingual in the coronal position, mesial and distal in the median sagittal position, and central. Results Primary healing was obtained in all six patients. At 6 months after extraction, the patients had well healed alveolar sockets, normal gingival color and texture, and no change in attached gingival width. CBCT taken at 6 months after extraction showed no change or a small increase in alveolar crest height at the buccal, lingual, mesial and distal sites, but an increase of 3.48 to 7.89 mm at the central site, among the 5 sites measured. Conclusion After extraction of maxillary molars, Bio-Oss Collagen can be used for extraction site preservation if the surrounding bone wall height is adequate. This method causes less trauma, has a shorter operation time, and its results are similar to those of conventional extraction site preservation. 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 （373）      PDF （1076KB）（732）       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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Inflammatory modulation and applications of biomaterials in oral bone regeneration Zhang Yufeng, Wang Yulan Chinese Journal of Oral Implantology    2023, 28 (5): 304-309.   DOI: 10.12337/zgkqzzxzz.2023.10.002 Abstract （350）      PDF （1284KB）（300）       Knowledge map    Save Significant progress has been made in the field of oral bone regeneration, with growing recognition of the pivotal role played by inflammation regulation. Temporal and contextual regulation of inflammation is essential for achieving successful bone repair. In the context of oral bone regeneration, biomaterials are employed as scaffolds/bone grafts to promote bone tissue formation in defect areas. The intrinsic properties of biomaterials may impact the inflammatory process and its regulation. Additionally, biomaterials can serve as carriers for immuno-modulatory drugs, further influencing bone regeneration. A comprehensive understanding of how biomaterials modulate inflammatory responses holds the potential to accelerate the development of novel bone regeneration materials. This review provides an overview of the current status of research on biomaterials in the context of oral bone regeneration and inflammation response, summarizing the laboratory advancements. The aim is to provide clinicians and researchers with a theoretical foundation for the selection and development of regenerative materials. 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 （346）      PDF （1348KB）（813）       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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Progress in the study of sandblasted large-grit acid-etched hydrophilic surface implants to promote osseointegration in areas of bone defects Qian Yinjie, Si Misi Chinese Journal of Oral Implantology    2022, 27 (5): 317-321.   DOI: 10.12337/zgkqzzxzz.2022.10.010 Abstract （330）      PDF （1197KB）（392）       Knowledge map    Save Rapid and stable osseointegration is an important guarantee for the success of the implant. One of the most important factors affecting osseointegration is the implant surface. Sandblasted large-grit acid-etched hydrophilic surface implants can promote early osseointegration in areas of adequate bone mass, however, their role in areas of bone defects is unclear. This article presents a review of the studies of sandblasted large-grit acid-etched hydrophilic surface implants used in areas of bone defects, which can be used to guide clinical practice. 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 （328）      PDF （1401KB）（585）       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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Progress in clinical application of implant robotics, dynamic navigation system and full-guide template in the field of oral implantology Man Yi, Yang Mutong Chinese Journal of Oral Implantology    2023, 28 (3): 146-151.   DOI: 10.12337/zgkqzzxzz.2023.06.004 Abstract （325）      PDF （1434KB）（379）       Knowledge map    Save With the development of digital technology in dental implantology, from the full-guide template to the dynamic navigation system, and now to the implant robotics, implant accuracy has always been a topic of concern in the field of dental implantology. In this paper, the clinical application process of full-guide template, dynamic navigation system, and implant robotics was described, and their respective advantages were analyzed. The purpose of this study is to provide a reference for clinical implantologists when selecting digital technology. 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 （320）      PDF （1549KB）（458）       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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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 （319）      PDF （1106KB）（786）       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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Current status of the use of polyurethane artificial bone in vitro studies of dental implants Teng Weiwei, Su Tianyue, Wang Qi, Shu Qianyi, Zhou Libo, Hou Yuze Chinese Journal of Oral Implantology    2022, 27 (5): 312-316.   DOI: 10.12337/zgkqzzxzz.2022.09.009 Abstract （317）      PDF （1166KB）（341）       Knowledge map    Save With the widespread use of dental implants,dental implants,orthodontic anchorage screws,jaw fracture fixation devices and other oral implants in clinical practice, the biomechanical properties of oral implants and the accuracy of implant placement have become one of the focuses in stomatology. These need to be clarified through a large number of in vivo and vitro experimental studies. However, in vitro study needs experimental models, and the establishment of standard experimental models is the basis for in vitro study. Therefore, it is necessary to find or establish experimental models that meet the standards. At present, there is no authoritative standard for in vitro studies of implants in the field of stomatology. The experimental models reported in the literature include gypsum, acrylic, and polyurethane. Among them, polyurethanes have been widely used in in vitro studies because of their similar properties to those of bone. Therefore, this paper summarizes the application of polyurethane experimental models in in vitro researches of oral implants, its remaining advantages, disadvantages and future prospects, hoping to provide a reference for the selection of in vitro models for future oral implant research. Reference | Related Articles | Metrics

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The autologous platelet concentrates for maxillary sinus floor elevation: an overview of systematic reviews Gong Jiaming, Zhao Ruimin, Zhang Qihang, Yu Zhanhai, Su Linhan Chinese Journal of Oral Implantology    2023, 28 (2): 102-108.   DOI: 10.12337/zgkqzzxzz.2023.04.006 Abstract （314）      PDF （1256KB）（319）       Knowledge map    Save Objective To evaluate the quality of methodology and evidence of the systematic reviews and meta-analyses (SR/MA) of autologous platelet concentrates (APC) for maxillary sinus floor elevation (MSFE). Methods PubMed, Embase, Cochrane Library, Scopus, CNKI, SinoMed, and WanFang databases were electronically searched to enroll SR/MA of APC for MSFE from inception to August 31, 2022. Two reviewers independently screened literature, extracted data, and employed the AMSTAR 2 and the GRADE for evaluating the quality of methodology of the included studies and the certainty of the evidence for outcomes respectively. Results A total of 13 SR/MA were included and the major conclusions were that APC presents limited influence on MSFE and might promote the healing of sinus tissue. The 9 items of AMSTAR 2 were reported well, and two items were not reported in any of the included SRs, and the quality was relatively convinced. The evidence grading of GRADE revealed that, in the total of 46 outcomes, 9 were graded as high-level, 25 as medium-level, 11 as low-level, and 1 as extremely low-level. Conclusion Most of the current evidence shows the advantages of APC in MSFE are not obvious, but the reliability of SR/Ma is inconsistent. High-quality clinical trials are still needed to verify the efficacy of APC for MSFE 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 （313）      PDF （1350KB）（566）       Knowledge map    Save Reference | Related Articles | Metrics

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Research progress on the modification of polyetheretherketone for implant applications Gu Teng, Wang Xuran, Wang Penglai Chinese Journal of Oral Implantology    2022, 27 (6): 371-375.   DOI: 10.12337/zgkqzzxzz.2022.12.008 Abstract （312）      PDF （1049KB）（418）       Knowledge map    Save Polyetheretherketone (PEEK) has good mechanical properties, excellent biocompatibility, and elastic modulus close to the bone, avoiding the stress shielding effect on the bone and reducing bone resorption. It has been gradually used in the field of oral implants. However, the biologically inert surface of PEEK limits its clinical application in oral implants, and the modification of PEEK to optimize its bioactivity has become a hot topic for researchers to study. This paper presents a systematic review of research progress on the modification of PEEK for implant applications. Reference | Related Articles | Metrics

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A meta-analysis of interimplant distance on peri-implant bone resorption Zhang Qihang, Gong Jiaming, Gou Ping, Yu Jiaying, Bo Lei, Yu Zhanhai Chinese Journal of Oral Implantology    2022, 27 (5): 304-311.   DOI: 10.12337/zgkqzzxzz.2022.10.008 Abstract （309）      PDF （1393KB）（338）       Knowledge map    Save Objective To systematically evaluate the effect of interimplant distance (IID) on peri-implant bone resorption by systematic evaluation and meta-analysis. Methods Databases in PubMed, Embase, Cochrane Library, Web of Science, CNKI and Wanfang Date until March 2022 were searched to identify animal studies or population studies that comparing peri-implant bone resorption at different IID, and citation indexes were carried out for the critical literatures. Results A total of 9 studies were included, including 7 animal studies and 2 clinical trials. Using 3 mm as the standard IID, meta-analysis indicated that there was no statistically significant difference in marginal bone resorption between IID=2 mm and IID=3 mm of animal studies [MD=0.05, 95%CI (-0.10,0.19), P=0.54]; Clinical trials showed slightly greater marginal bone resorption at IID=2 mm than at IID=3 mm, which is not statistically significant [MD=0.11, 95%CI (-0.09,0.31), P=0.27]. There was no statistically significant difference in vertical bone resorption at IID=2 mm or 3 mm [MD=-0.10,95%CI (-0.27,0.07), P=0.24]. Conclusion sBased on the limited evidence, performance was similar for IID=2 mm compared to IID=3 mm. There is still a need to refine the assessment groups, improve the assessment methods and further confirm the relationship between IID and peri-implant bone resorption. Reference | Related Articles | Metrics

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Custom impression techniques of multi-unit implant-supported prosthesis in aesthetic zone Chen Danying, Wu Xiayi, Liu Quan, Chen Zhuofan Chinese Journal of Oral Implantology    2023, 28 (1): 30-34.   DOI: 10.12337/zgkqzzxzz.2023.02.006 Abstract （308）      PDF （1596KB）（337）       Knowledge map    Save The accurate transfer of the emergence profile of restoration is of great importance for the successful aesthetic outcome of implant-supported prosthesis in the aesthetic zone. The custom impression technique for a single unit implant-supported prosthesis in the aesthetic zone has been widely used in daily practice. However, the custom impression techniques for the multi-unit implant-supported prosthesis in the aesthetic zone are relatively complex. This current review listed the custom impression techniques for the multi-unit implant-supported prosthesis in the aesthetic zone. By comparing the two clinical situations in whioh the initial impression is missing or available, it is recommended to take separate staged impressions to transfer the implant position and the emergence profile. 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 （296）      PDF （1412KB）（425）       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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Analysis of the use of digital surgical guides in dental implant restoration Pang Liping, Xu Mingyan, Guo Weizhong, Zuo Qiliang Chinese Journal of Oral Implantology    2022, 27 (5): 292-298.   DOI: 10.12337/zgkqzzxzz.2022.10.006 Abstract （290）      PDF （1408KB）（291）       Knowledge map    Save Objective To investigate the effect of digital guided technology on the accuracy of oral implant restoration. Methods 33 patients with oral implant restorations were selected. The digital guided technology restoration was Group A, free-handed implant restoration was Group B . There are 41 implants in group A, and 48 implants in Group B. cone beam computed tomography (CBCT) was used to record and compare the deviation values of the two methods in implant neck, root, depth and angle. Results The implant neck deviation in Group A [(1.50±0.49) mm] was less than that in Group B [(2.15±0.57) mm] (P<0.05).The root deviation in Group A [(1.56±0.56) mm] was less than that in Group B [(2.19±0.50) mm], and the difference was comparable (P<0.05).The depth deviation in Group A [(1.40±0.40) mm] was less than that in Group B [(1.80±0.43) mm], and the difference was comparable (P< 0.05). The angle deviation in Group A (3.39°±0.62°) was less than that in Group B (3.92°±0.55°), and the difference was comparable (P<0.05). There was a statistically significant difference in the anterior and posterior regions using digital guided surgery (P<0.05). There was a statistically significant difference between the implant neck deviation and the root deviation when comparing the three brands of implants using the digital guided technology (P<0.05); while there was no statistically significant difference between the depth deviation and the angle deviation when comparing the three brands of implants using the digital guided technology (P>0.05). Conclusion Using digital technology for dental implant restoration can optimize the precision of implant and improve the quality of restoration. 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 （283）      PDF （1691KB）（403）       Knowledge map    Save Reference | Related Articles | Metrics

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Progress in the study of osteogenesis after maxillary sinus floor elevation Deng Lei, Huang Haitao Chinese Journal of Oral Implantology    2023, 28 (1): 53-57.   DOI: 10.12337/zgkqzzxzz.2023.02.010 Abstract （280）      PDF （1561KB）（379）       Knowledge map    Save Maxillary sinus floor elevation is the main technique to address the problem of bone shortage in the maxillary posterior region currently. By creating an osteogenic space in the maxillary sinus floor, bone graft materials can be implanted or not implanted to guide the growth of new bone, thereby increasing the osseointegration of the implant and achieving long-term stability of the implant. Therefore, the research on the source and osteogenic mechanism of new bone after maxillary sinus floor elevation is of great importance for the improvement of clinical surgery and the long-term success of the implant. Reference | Related Articles | Metrics

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The decision-making principles of sinus floor elevation (part 2) Pi Xuemin, Chen Deping, Liu Qian, Ren Bin, Pan Hong, Su Yucheng Chinese Journal of Oral Implantology    2022, 27 (6): 387-392.   DOI: 10.12337/zgkqzzxzz.2022.12.011 Abstract （280）      PDF （1289KB）（535）       Knowledge map    Save 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 （262）      PDF （1462KB）（396）       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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As winter turns to spring, let's welcome a new year of progress Su Yucheng Chinese Journal of Oral Implantology    2023, 28 (1): 1-2.   DOI: 10.12337/zgkqzzxzz.2023.02.001 Abstract （253）      PDF （1322KB）（372）       Knowledge map    Save 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 （253）      PDF （1498KB）（356）       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