구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)

  • 제41권3호
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  • Pages.198-208
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  • 2025
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  • 2384-4353(pISSN)
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  • 2384-4272(eISSN)
대한턱관절교합학회 (Korean Academy of Stomatognathic Function and Occlusion)
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AI 기반 CAD 치과 CAD 소프트웨어를 사용하여 제작된 임시크라운의 변연 및 내면 적합도 평가

Evaluation of the marginal and internal fit of interim crowns fabricated using AI-based dental CAD software

  • 김규리 (경북대학교 일반대학원 치의과학과) ;
  • 손큰바다 (경북대학교 첨단치과의료기기개발연구소) ;
  • 이규복 (경북대학교 첨단치과의료기기개발연구소)
  • Gyu-Ri Kim (Department of Dental Science, Graduate School, Kyungpook National University) ;
  • Keunbada Son (Advanced Dental Device Development Institute, Kyungpook National University) ;
  • Kyu-Bok Lee (Advanced Dental Device Development Institute, Kyungpook National University)
  • 투고 : 2025.06.19
  • 심사 : 2025.07.28
  • 발행 : 2025.08.31
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초록

목적: 본 연구의 목적은 인공지능 기반 치과 CAD 소프트웨어를 사용하여 제작된 임시 크라운의 변연 및 내면 적합도를 평가하는 것을 목표로 한다. 연구 재료 및 방법: 상악 우측 제1대구치를 임시 크라운 제작을 위해 준비하였다. 데스크탑 스캐너를 사용하여 스캔파일을 얻었고, 세가지 치과 CAD 소프트웨어 프로그램으로 내보냈다. 기존 소프트웨어와 두가지 AI 기반 치과 프로그램. 모든 소프트웨어에 걸쳐 60 ㎛의 동일한 시멘트 간격을 설정하고, 10개의 임시 크라운을 디자인하였다. 크라운은 3D 프린터를 사용하여 제작되었으며, 실리콘 복제 기법을 사용하여 변연 및 내부 적합도를 평가하였다. 통계 분석은 Kruskal-Wallis 검정과 사후 분석(α = 0.05)을 사용하여 수행하였다. 결과: 세 가지 치과용 CAD 소프트웨어 프로그램 간에 변연 적합도에 유의미한 차이가 관찰되었다(P < 0.05). 3Shape에서 생성된 변연 간격은 두 가지 AI 기반 프로그램보다 유의미하게 컸다(P < 0.05). 내부 적합도 측면에서는 대부분 영역에서 유의미한 차이가 관찰되지 않았으며(P > 0.05), Single-Pro에서 교합 간극이 유의미하게 더 컸다(P < 0.05). 결론: Dentbird와 Single-Pro를 사용하여 제작된 임시 크라운은 우수한 변연 적합도를 보였다. 그러나 Single-Pro의 내부 적합도 교합 영역에서 비교적 큰 간극이 나타났기 때문에 추가적인 개선이 필요하다.

Purpose: This study aimed to assess the marginal and internal fit of interim crowns fabricated using artificial intelligence (AI)-based dental computer-aided design (CAD) software. Materials and Methods: The right maxillary first molar was prepared for an interim crown. Scan files were obtained using a desktop scanner and exported to three dental CAD software programs: a conventional software and two AI-based dental programs. A uniform cement gap of 60 ㎛ was set across all software, and 10 interim crowns were designed. The crowns were fabricated using a 3D printer, and their marginal and internal fit was evaluated using the silicone replication technique. Statistical analysis was performed using the Kruskal-Wallis test and post hoc analysis (α = 0.05). Results: A significant difference in marginal fit was observed among the three dental CAD software programs (P < 0.05). The marginal gap produced by 3Shape was significantly greater than that of the two AI-based programs (P < 0.05). No significant differences were observed in most areas regarding internal fit (P > 0.05), although Single-Pro exhibited a significantly larger occlusal gap (P < 0.05). Conclusion: The interim crowns fabricated using Dentbird and Single-Pro demonstrated excellent marginal fit. However, further refinement is necessary, as the occlusal area of the internal fit in Single-Pro exhibited a comparatively larger gap.

키워드

과제정보

The authors thank the researchers at the Advanced Dental Device Development Institute, Kyungpook National University, for their time and contribution to the study. This research was supported by the Bio Industry Technology Development Program of the Korea Evaluation Institute of Industrial Technology (KEIT) funded by the Ministry of Trade, Industry and Energy (20018114).

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