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31 January 2023, Volume 26 Issue 1 Previous Issue    Next Issue

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Differential diagnosis and treatment strategies of diseases with gingival enlargement Xiangying Ouyang, Wenyi Liu, Jianru Liu, Jinsheng Zhong 2023, 26(1):  1-5.  DOI: 10.12337/zgkqjxjyzz.2023.01.001 Abstract ( 99 )   PDF (1367KB) ( 61 )   Gingival enlargement has been a common oral manifestation in clinic. Severe cases affect chewing. Gingival hypertrophy could be seen in many diseases, but the nature of the diseases were entirely different. Some are curable gingival diseases, some are malignant diseases. The treatment strategies and methods for different diseases are different. Therefore, they need to be carefully identified. This article will introduce how to identify various diseases with gingival enlargment and the treatment strategies for these diseases. References | Related Articles | Metrics

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Periodontal regenerative surgery combined with orthodontic movement for the treatment of vertical bone defects Haiyan Qiu, Jingting Yu 2023, 26(1):  6-11.  DOI: 10.12337/zgkqjxjyzz.2023.01.002 Abstract ( 74 )   PDF (783KB) ( 50 )   Periodontal regenerative surgery can achieve the most effective results for vertical bone defects in patients with periodontitis. The inflammation of the vertical bone defects in orthodontic patients was controlled after periodontal surgery, and the orthodontic tooth movement was relatively safe. After periodontal regenerative surgery, the roots of teeth can enter the surgical site as soon as possible without sacrificing the safety by early tooth movement. Graft materials such as bone substitutes or barrier membranes used during surgery may hinder tooth movement, but on the other hand, it will also reduce the probability of root resorption. Whether the periodontal regenerative surgery combined with orthodontic treatment can maintain a long-term good clinical effect is affected by multiple factors, such as the frequency of periodontal maintenance, the frequency and intensity of orthodontic force, and the postoperative effect needs further observation and research. References | Related Articles | Metrics

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A review of electrospinning materials in periodontal regeneration: fabrication strategies and development trends Maoxue Li, Guoping Cheng, Shujuan Guo, Yi Ding 2023, 26(1):  12-17.  DOI: 10.12337/zgkqjxjyzz.2023.01.003 Abstract ( 70 )   PDF (758KB) ( 57 )   Electrospinning nanofiber materials can mimic the natural extracellular matrix structure with their high specific surface area and porosity, and can serve as carriers for bioactive substances that may be required to regenerate periodontal tissues and promote cell growth. Electrospinning nanofiber materials is a current hotspot in periodontal tissue engineering. In this paper, we discuss future development trends as well as the compositions and fabrication strategies of periodontal tissue regenerative biomaterials systems based on electrospinning technology. References | Related Articles | Metrics

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Research progress on prognostic factors of alveolar ridge preservation Jiaqi Deng, Yaping Pan 2023, 26(1):  18-24.  DOI: 10.12337/zgkqjxjyzz.2023.01.004 Abstract ( 101 )   PDF (836KB) ( 110 )   Alveolar ridge preservation can reduce the alveolar bone absorption and soft tissue recession that occur during the natural healing of sockets, and provide good soft and hard tissue conditions for implanting, therefore, it is important to evaluate the prognosis of alveolar ridge preservation. The prognostic factors of alveolar ridge preservation were related to local anatomical factors of teeth, implanted materials and individual factors of patients. At present, the factors influencing the prognosis of alveolar ridge preservation have attracted the attention of clinicians. This article reviewed the prognostic factors of alveolar ridge preservation, aiming to provide reference for clinical treatment and make personalized treatment plan, so as to achieve predictable clinical effects. References | Related Articles | Metrics

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Periodontally accelerated osteogenic orthodontic technique assisting in the treatment of skeletal class II malocclusion: A case report Yu Zeng, Ningjing Zhu, Yangruoxuan Liu, Xiaoxuan Wang, Hui Xiong, Zhengguo Cao 2023, 26(1):  25-38.  DOI: 10.12337/zgkqjxjyzz.2023.01.005 Abstract ( 257 )   PDF (5993KB) ( 220 )   Objective: This case reports the adjunctive application of the modified periodontally accelerated osteogenic orthodontics (PAOO) technique in the combined orthodontic and orthodontic treatment of skeletal class II malocclusion. Diagnosis and treatment: The patient received combined orthodontic and orthognathic treatment after a clear diagnosis and the patient's informed consent. And a modified PAOO procedure was performed before orthodontic decompensation, including a papilla preservation incision, full-thickness flap reflection, interradicular corticotomy, alveolar bone argumentation with bone graft material but without barrier membrane, and a modified suturing technique. After orthodontic decompensation, orthognathic surgery was performed, and then postoperative orthodontic treatment was administered. Results: At the end of orthodontic decompensation, seventeen months after PAOO, the clinical effect was stable, the thickness of the labial alveolar bone and the width of keratinized gingiva increased. Meanwhile, there was no obvious gingival recession and severe periodontitis. Conclusions: The adjunctive application of PAOO in orthodontic therapy can improve patients’ periodontal phenotype and reduce the risk of periodontal complications such as gingival recession, alveolar bone fenestrations and dehiscences. References | Related Articles | Metrics

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Management of impacted tooth during orthodontic treatment: a case report Tianyuan Li, TongxinZhu, Jindong Chen, Bin Chen, Fuhua Yan 2023, 26(1):  39-44.  DOI: 10.12337/zgkqjxjyzz.2023.01.006 Abstract ( 129 )   PDF (13142KB) ( 135 )   Objective: The purpose of this study is to discuss the problems that should be paid attention to in the periodontal surgery for orthodontic patients, taking a surgery on an impacted tooth as an example. Diagnosis and treatment: A 25-year-old male patient presented with gingivitis, malocclusion, and an impacted upper right lateral incisor. The malocclusion included overbite of anterior teeth, distal relationship of bilateral first molars and canines, and there was a gap between the central incisor and canine of right maxillary. First, the teeth were aligned and the gap was widen through orthodontic treatment. Next, non-surgical periodontal therapy was completed. Then, a surgery eruption was carried out, in which a modified incision was designed on the palatal side to preserve all soft tissues as much as possible on the premise of effectively exposing the impacted tooth. At the same time, bone and soft tissue augmentation were performed according to the target position of orthodontic teeth movement. Finally, the right maxillary lateral incisor was aligned after the surgery. Results: The soft and hard tissues of the periodontal complex were kept healthy during orthodontic treatment after rational design of the periodontal surgery. Conclusions: Both orthodontic and periodontic factors should be taken into consideration when designing a periodontal surgery for patients in orthodontic practice. References | Related Articles | Metrics

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Periodontal surgery of soft and hard tissue augmentation for assisting maxillary expansion: a case report Junwei Jiao, Lei Zhao, Huan Zhao 2023, 26(1):  45-52.  DOI: 10.12337/zgkqjxjyzz.2023.01.007 Abstract ( 91 )   PDF (3453KB) ( 54 )   Objective: This case reports the clinical application of periodontal soft and hard tissue augmentation in the treatment of alveolar bone dehiscence and root surface exposure during orthodontic treatment. Diagnosis and treatment: A 26-year-old male patient suffered gingival recession in his right upper posterior tooth during orthodontic arch expansion, therefore the tooth movement was stopped and periodontal treatment was requested. Clinical examination showed that Miller classⅢ gingival recession in teeth$\underline{7-5}\rvert$. CBCT examination showed that alveolar bone resorption was presented in the coronal third to middle of the roots in teeth$\underline{7-5}\rvert$. After the mucogingival surgery for root coverage and keratinized gingival augmentation, the corticotomy combined with bone graft surgery was completed to treat alveolar bone dehiscence of teeth $\underline{7-5}\rvert$. Results: After 1 year of follow-up, the orthodontic treatment was successfully completed, and the condition of gingiva and alveolar bone was stable. Conclusion: Subepithelial connective tissue graft-based procedures combined with corticotomy+bone graft surgery could provide satisfactory outcomes in the treatment of alveolar bone dehiscence and root surface exposure during orthodontic treatment, however the long-term stability remains to be further explored. References | Related Articles | Metrics

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Treatment of maxillary anterior black triangle using tunnel technique: a case report Wentao Sun, Mengjun Sun, Kecong Zhou, Rong Shu, Yufeng Xie 2023, 26(1):  53-57.  DOI: 10.12337/zgkqjxjyzz.2023.01.008 Abstract ( 95 )   PDF (7820KB) ( 60 )   Objective: This case report presented the treatment of the black triangle of the maxillary anterior teeth, hoping to provide a new idea for the treatment of the black triangle. Diagnosis and treatment: Female, 33 years old. The height of the maxillary anterior gingival papilla reduced for more than 1 month. This case was treated with tunnel technology (TUN) +connective tissue graft (CTG) combined with resin restoration to treat the gingival papilla recession. The patients were followed up for 2 years. Results: After 2 years, the shape of gingival papilla in anterior teeth area was plump, the interproximate space was completely filled, and the esthetic effect was significantly improved. Conclusion: TUN+CTG combined with resin restoration can be used to treat the black triangle of anterior teeth. Its indications, advantages and disadvantages need to be proved by further clinical research. References | Related Articles | Metrics

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Root coverage for the treatment of gingival recession: A case report Chunxu Lyu, Jinlong Shao, Yang Yu, Shaohua Ge 2023, 26(1):  58-64.  DOI: 10.12337/zgkqjxjyzz.2023.01.009 Abstract ( 116 )   PDF (10324KB) ( 110 )   Objective: Gingival recession often results in root sensitivity, plaque retention, and esthetic issues, which have an impact on patients’oral health and facial appearance. In this case, root coverage was used to treat gingival recession and reduce root sensitivity. Diagnosis and treatment: The coronally advanced flap in combination with a connective tissue graft was used to treat the (recession type,RT) 1 recession. Results: Two weeks after the operation, the gingival margin of the recipient area was slightly swollen. After 12 months of follow-up, the gingival margin position tended to be stable, the root coverage rate reached 100%, and the width and clinical attachment of keratinized gingival increased. The patient had no uncomfortable symptoms such as root sensitivity, frenulum traction and scarring. The aesthetic effect of gingival is good. Conclusions: Coronally advanced flap combined with connective tissue graft is effective in treating the RT 1 recession, which not only obtains complete root coverage with good aesthetic effect, but also increases the width of the keratinized gingiva and clinical attachment in the operation area. References | Related Articles | Metrics

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Guided tissue regeneration with bone graft for treatment of angular bone resorption: a case report Jiaqi Deng, Yaping Pan 2023, 26(1):  65-72.  DOI: 10.12337/zgkqjxjyzz.2023.01.010 Abstract ( 90 )   PDF (3469KB) ( 89 )   Objective: To analyze the clinical effect of guided tissue regeneration combined bone grafting on the case of angular bone resorption. Diagnosis and treatment: In this paper, a patient with stageⅢ grade C periodontitis was treated with guided tissue regeneration combined with bone grafting to restore the normal physiological structure and function of the periodontal tissue. Guidor matrix membrane and Hai-ao collagen membrane were used to cover the two operative areas respectively in two operations. Results: After 4 years of supportive periodontal therapy post operation, the patient’s periodontal status remained stable and satisfied clinical results were achieved. Conclusion: The narrow and deep intrabony defects, which can provide stable regenerative space, is suitable for guiding tissue regeneration due to its abundance of periodontal ligament cells. References | Related Articles | Metrics

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Multi-disciplinary treatment on pathological tooth migration (PTM) of anterior teeth in patients with periodontitis accompanied by protrusive interference caused by the third molar: a case report Chengjia Xie, Buyu Yao, Guangcan Zhang, Xijun Wang, Shaohua Ge 2023, 26(1):  73-79.  DOI: 10.12337/zgkqjxjyzz.2023.01.011 Abstract ( 183 )   PDF (8443KB) ( 100 )   Objective: This case report presented the treatment of a patient with stageⅢgrade B peridontitis accompanied with PTM of anterior tooth, hoping to provide a reference for the treatment of PTM. Diagnosis and treatment: Female, lactation, 28 years old. Due to the gradual enlargement of the anterior teeth interdental gap, the patient visited our department after delivery. This case was treated with sequential periodontal therapy and muti-disciplinary treatment. Results: After sequential periodontal treatment, the periodontal condition returned to be stable and healthy, and the patients were satisfied with the appearance and function after restoration treatment. Besides, the design of the prosthesis is conducive to the long-term periodontal stability. Conclusion: It is necessary to comprehensively analyze the etiology of PTM and make a diagnosis and treatment plan. References | Related Articles | Metrics

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Exploration experience of the undergraduate teaching innovation of Periodontology guided by Outcome-based Education concept Xiaoqian Wang, Ying Sun, Lu Li, Ying Geng, Wei Lu, Yan Xu 2023, 26(1):  80-84.  DOI: 10.12337/zgkqjxjyzz.2023.01.012 Abstract ( 68 )   PDF (831KB) ( 56 )   Objective: To summarize the exploration and experience of blended learning model based on concept of outcome-based education (OBE) in undergraduate educational innovation of Periodontology. Methods:Teaching team searches for key problems in the educational innovation, reshapes teaching objectives, and reconstructs the teaching system guided by OBE education concepts. The educational innovations are carried out based on theoretical teaching, supplemented by the massive open online courses, three dimentional animations, case beased learning/problem based learning, seminar and other integrated methods. Results: Periodontology curriculum innovations inspire the creativity of young educators, stimulate the learning initiative of students, and enrich the curriculum teaching resources, significantly improve the educational effect. Conclusion: The concept of OBE plays a positive role in the teaching innovation of Periodontology. The teaching team will gradually improve educational innovation and form a three-dimensional and multi-carrier curriculum system, so as to cultivate the practical and qualified personnel efficiently. References | Related Articles | Metrics