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구강스캐너 5종의 협측 악간관계 스캔 정확성 비교 연구
Accuracy comparison of buccal bite scans by five intra-oral scanners
J Dent Rehabil Appl Sci 2018;34(1):17-31
Published online March 31, 2018
© 2018 Korean Academy of Stomatognathic Function and Occlusion.

박지만1a, 전진2a, 허성주2*
Ji-Man Park1a, Jin Jeon2a, Seong-Joo Heo2*

1연세대학교 치과대학 보철과학교실
2서울대학교 치과대학 보철학교실

1Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea
2Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
Seong-Joo Heo
Professor, Department of Prosthodontics & Dental Research Institute, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
Tel: +82-2-2072-3319, Fax: +82-2-2072-3860, E-mail: 0504heo@hanmail.net
aThese authors contributed equally to this work.
Received October 29, 2017; Revised November 6, 2017; Accepted November 6, 2017.
cc This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
목적: 이 연구의 목적은 다양한 구강 스캐너를 사용하여 협측 악간관계 스캔에 따른 상하악 악궁 관계의 정확성을 비교 평가하는 것이다.
연구 재료 및 방법: 정상 교합을 보이는 상하악 전악 모델을 5종(Cerec Omnicam, CS3500, iTero, Trios, TruDef)의 구강 스캐너로 제조사의 지시대로 스캔하였다. 폴리비닐실록산 교합 재료로 고정시킨 금속 지그를 이용하여 우측 구치부를 1, 2, 3, 4 mm 단계적으로 올린 후 좌측 협측 악간관계 스캔을 채득하였다. 두 데이터를 중첩하여 전체적인 삼차원 변이를 평가하였고, 교합 평면에 수직인 단면을 분석하여 교두간 거리의 양과 방향을 평가하였다.
결과: 중첩연구에서 Cerec Omnicam (165.5 μm)이 가장 적은 변이를 보였고, CS3500 (369.0 μm)이 가장 큰 변이를 보였으며(P < 0.01), 1 mm 보다 3, 4, 2 mm 이개 그룹에서 변이가 유의미하게 컸다(P < 0.01). 단면 연구에서는 Cerec Omnicam이 교두끼리의 거리가 가장 먼 변이를 보였고(-242.8 μm), CS3500이 가장 가까워지는 변이를 보였으며(312.5 μm), 다른 거상 높이 보다 3 mm 이개 그룹에서 유의하게 변이가 컸다(P < 0.01).
결론: 구강 스캐너 마다 협측 악간관계 스캔을 이용해 상하악 교합 관계를 재현하는 정확성이 달랐다.
Purpose: The purpose of this study was to investigate the accuracy of the interocclusal relationship between upper and lower teeth according to the buccal interocclusal record scan using various intraoral scanner systems.
Materials and Methods: The upper and lower full arch Models with normal occlusion were scanned with 5 intraoral scanners (Cerec Omnicam, CS3500, iTero, Trios, True Definition). Buccal interocclusal record scan was taken only at the left side while occlusion was intentionally raised by 1 mm, 2 mm, 3 mm, and 4 mm with metal cylinder core embedded within polyvinylsiloxane bite registration material at the right molar region. The superimposition analysis was done to evaluate overall three-dimensional deviation and cross-section analysis was done to evaluate the degree and the direction of deviation of interocclusal relationship.
Results: From the superimposition study, Cerec Omnicam showed the least deviation (165.5 μm) and CS3500 (369.0 μm) showed the largest (P < 0.01). And the deviation was greater in 3, 4, 2 mm group than 1 mm (P < 0.01). From the cross-section study, Cerec Omnicam showed the farthest deviation (-242.8 μm) and CS3500 showed the closest deviation (312.5 μm) and a significantly high value was shown in 3 mm group.
Conclusion: Every intraoral scanner has different accuracy in reproducing interocclusal relationship.
주요어 : 구강스캐너; 악간관계; 바이트인기; 전정교합기록
Keywords : intraoral scanner; interocclusal record; bite registration; vestibular interocclusal record


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