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ORIGINAL ARTICLE
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J Korean Dent Assoc. 2022;60(5):258-268. Published online April 30, 2022.
DOI: https://doi.org/10.22974/jkda.2022.60.5.001
- 디지털 셋업 모형에서 제작된 jig를 이용한두 가지 브라켓 간접 접착 방법의 정확성 비교
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이종현
, 최동순
, 장인산
, 차봉근
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강릉원주대학교 치과대학 치과교정학교실
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- Comparison of accuracy of two indirect bonding methods using a jig fabricated from digital setup model
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Jong-Hyeon Lee
, Dong-Song Choi
, Insan Jang
, Bong-Kuen Cha
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Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University
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- Corresponding author: Dong-Song Choi Email: dschoi@gwnu.ac.kr
- Received: January 12, 2022; Revised: February 9, 2022 Accepted: March 8, 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.
Keywords :Accuracy; Bracket; Bonding; Digital model; Superimposition
