Autogenous bone ring augmentation around single tooth implantation in the esthetic zone: A retrospective case series study with 2-3 years of follow-up

作者全名："Chen, Xue; Tang, Chenxi; Zhang, Xiaohan; Chen, Yue; Huang, Peijun; Chen, Zhongren; Gao, Yuan; Peng, Lin"

作者地址："[Chen, Xue; Tang, Chenxi; Zhang, Xiaohan; Chen, Yue; Huang, Peijun; Chen, Zhongren; Peng, Lin] Sichuan Univ, West China Hosp Stomatol, Natl Clin Res Ctr Oral Dis, State Key Lab Oral Dis,Dept Implantol, Chengdu, Peoples R China; [Chen, Xue] Chongqing Med Univ, Chongqing Key Lab Oral Dis & Biomed Sci, Chongqing Municipal Key Lab Oral Biomed Engn Highe, Stomatol Hosp, Chongqing, Peoples R China; [Gao, Yuan] Sichuan Univ, West China Hosp Stomatol, Natl Clin Res Ctr Oral Dis, State Key Lab Oral Dis,Dept Endodont, Chengdu, Peoples R China; [Peng, Lin] Sichuan Univ, West China Hosp Stomatol, Dept Implantol, People South Rd,Sect 14th, Chengdu 610044, Peoples R China"

通信作者："Peng, L (通讯作者)，Sichuan Univ, West China Hosp Stomatol, Dept Implantol, People South Rd,Sect 14th, Chengdu 610044, Peoples R China."

来源：JOURNAL OF DENTAL SCIENCES

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:001091761600001

JCR分区：Q1

影响因子：3.4

年份：2023

卷号：18

期号：4

开始页：1517

结束页：1526

文献类型：Article

关键词：Alveolar ridge; Bone ring technique; Esthetic zone; Maxillary incisor; augmentation; Autograft

摘要："Background: /purpose: Bone ring technique (BRT) is an effective method to recon-struct alveolar bone defects with simultaneous implant placement. This study aimed to evaluate the efficacy of the BRT in single maxillary anterior tooth implantation and its esthetic outcomes over 2-3 years of follow-up.Materials and methods: Fifteen patients with single maxillary incisor loss received autogenous BRT with simultaneous implant placement. The vertical/horizontal bone gain, remaining vertical bone height (RVBH), remaining buccal bone width (RBBW), and vertical/horizontal bone resorption around implant over 2-3 years of follow-up were measured by using cone-beam computed tomography. Esthetic results including white esthetic score (WES), pink esthetic score (PES), and papilla index (PI) were evaluated by clinical recorded photographs.Results: All implants showed evidence of osseointegration, and the mean vertical and horizontal bone gain of 14 sites was 5.55 +/- 0.87 mm and 4.73 +/- 0.70 mm, respectively. During 2-3 years of follow-up, all mean values of RBBW were more than 2 mm. Main vertical bone loss ap-peared within 4 months after surgery and the RVBH value decreased as the follow-up duration continued. Maximum buccal bone thickness resorption mostly appeared in the middle level of the implant during the primary two follow-up periods (P < 0.05). Esthetic results showed that the mean WES/PES was higher than 17, and more than half cases demonstrated relatively high PI (3 points) throughout the follow-up.Conclusion: BRT could achieve excellent bone augmentation effect and can offer predictable esthetic outcomes for single tooth implant restoration in the esthetic zone.(c) 2023 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons. org/licenses/by-nc-nd/4.0/)."

基金机构：Basic Research Project of Sichuan Provincial Department of Science and Technology [20YYJC3660]

基金资助正文：This work was supported by Basic Research Project of Sichuan Provincial Department of Science and Technology [grant numbers 20YYJC3660] .