Comparison of accuracy of two indirect bonding methods using a jig fabricated from digital setup model

Lee, Jong-Hyeon; Choi, Dong-Song; Jang, Insan; Cha, Bong-Kuen

doi:2022.60.5.258

J Korean Dent Assoc > Volume 60(5); 2022 > Article

ORIGINAL ARTICLE

Journal of Korean Dental Association 2022;60(5):258-268.
DOI: https://doi.org/10.22974/jkda.2022.60.5.001 Published online April 30, 2022.

디지털 셋업 모형에서 제작된 jig를 이용한두 가지 브라켓 간접 접착 방법의 정확성 비교

이종현

, 최동순

, 장인산

, 차봉근

강릉원주대학교 치과대학 치과교정학교실

Comparison of accuracy of two indirect bonding methods using a jig fabricated from digital setup model

Jong-Hyeon Lee

, Dong-Song Choi

, Insan Jang

, Bong-Kuen Cha

Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University

Correspondence: Dong-Song Choi
Email: dschoi@gwnu.ac.kr

Received: 12 January 2022 • Revised: 9 February 2022 • Accepted: 8 March 2022

Abstract

Aim
To evaluate the accuracy of indirect bonding using a jig fabricated from the digital setup model.
Materials and Methods
Total 120 bracket jigs for the maxillary teeth were fabricated using computer-aided design and manufacturing (CAD/CAM) from 10 maxillary digital setup models. Brackets were bonded using the jigs on five models (Group 1), and using the jigs and additional vacuum tray on five models (Group 2). The models were scanned again and superimposed with each initial digital models for evaluation of bonding accuracy.
Results
Indirect bonding using CAD/CAM jigs showed the average bonding error of ± 0.1 mm at linear measurement and ± 2.0°at angular measurement except labio-lingual inclination (3.36°) at the premolar of Group 1. The bonding accuracy were not statistically different between both groups.
Conclusions
CAD/CAM jigs can transfer the bracket to the desired position regardless of whether additional vacuum tray is used or not, and this indirect bonding system provides clinically acceptable accuracy.

Key Words: Accuracy; Bracket; Bonding; Digital model; Superimposition