Chaoran Xue1, Hui Xu1, Yongwen Guo1, Li Xu2, Yogyata Dhami1, Hongzhe Wang1, Zhongyu Liu1, Jianbin Ma1, Ding Bai3. 1. Department of Orthodontics and Paediatrics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China. 2. Department of Orthodontics, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou, Zhejiang, China. 3. Department of Orthodontics and Paediatrics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China. Electronic address: baiding@scu.edu.cn.
Abstract
INTRODUCTION: A protocol was introduced to achieve accurate bracket placement in vivo, which consisted of operative procedures for precise control, and a computer-aided design and computer-aided manufacturing-guided bonding device. To evaluate the accuracy of this protocol, a 3-dimensional assessment was performed. METHODS: Ten consecutive patients were enrolled. Strictly following the protocol, from December 2017 to March 2018, brackets were placed on the teeth of each patient using the device. To evaluate the accuracy, deviations of positions and orientations for bracket placement were measured. Each patient was followed up after 3 months regarding bracket failures. RESULTS: The guided bonding device was used in all cases, and a total of 205 brackets were successfully bonded and evaluated. Except for 15.12% brackets with torque deviation over 2°, the deviations in mesiodistal, buccolingual, vertical, rotation, and angulation were below the clinical acceptable range (0.5 mm in translation or 2° in orientation) for all brackets. In the 3-month follow-up, there was no bracket failure in any patient. CONCLUSION: This protocol transferred the planned bracket position from the digital setup to patient's dentition with generally high positional accuracy.
INTRODUCTION: A protocol was introduced to achieve accurate bracket placement in vivo, which consisted of operative procedures for precise control, and a computer-aided design and computer-aided manufacturing-guided bonding device. To evaluate the accuracy of this protocol, a 3-dimensional assessment was performed. METHODS: Ten consecutive patients were enrolled. Strictly following the protocol, from December 2017 to March 2018, brackets were placed on the teeth of each patient using the device. To evaluate the accuracy, deviations of positions and orientations for bracket placement were measured. Each patient was followed up after 3 months regarding bracket failures. RESULTS: The guided bonding device was used in all cases, and a total of 205 brackets were successfully bonded and evaluated. Except for 15.12% brackets with torque deviation over 2°, the deviations in mesiodistal, buccolingual, vertical, rotation, and angulation were below the clinical acceptable range (0.5 mm in translation or 2° in orientation) for all brackets. In the 3-month follow-up, there was no bracket failure in any patient. CONCLUSION: This protocol transferred the planned bracket position from the digital setup to patient's dentition with generally high positional accuracy.
Authors: Julius von Glasenapp; Eva Hofmann; Julia Süpple; Paul-Georg Jost-Brinkmann; Petra Julia Koch Journal: J Clin Med Date: 2022-02-26 Impact factor: 4.241
Authors: Julia Süpple; Julius von Glasenapp; Eva Hofmann; Paul-Georg Jost-Brinkmann; Petra Julia Koch Journal: J Clin Med Date: 2021-05-07 Impact factor: 4.241