Journal article
Fit accuracy of complete crowns fabricated by generative artificial intelligence design: a comparative clinical study
The journal of advanced prosthodontics, Vol.17(4), pp.224-234
08/2025
DOI: 10.4047/jap.2025.17.4.224
PMCID: PMC12411301
PMID: 40919046
Abstract
PURPOSE
Designing restorations remains challenging because the process is time-consuming and requires operator skill and experience. This clinical study evaluated the fit accuracy of polymerized complete crowns fabricated using a web-based 3D generative artificial intelligence design (GAID) method compared to crowns fabricated using a conventional computer-aided design (CCAD) method.
MATERIALS AND METHODS
Sixty-two patients requiring complete crowns in maxillary and mandibular premolars and molars were enrolled. After tooth preparation, digital impressions were taken using an intraoral scanner. Two crowns per patient were designed: one used a web-based automatic 3D GAID software program, and the other used a standard human-driven CCAD software program. The crowns were 3D-printed and delivered to the patients. Marginal and internal discrepancies and occlusal contacts were evaluated using a digital triple scan technique. Statistical analysis used two one-sided t-tests for paired samples to assess crown accuracy in both methods (α = .05).
RESULTS
Marginal gaps of crowns made by both methods showed equivalence in the buccal, mesial, and distal regions; however, in the lingual region, the GAID method produced higher marginal discrepancies (P > .001). Regarding internal gaps, no significant difference was observed between the two methods. Crowns produced by the GAID method exhibited larger occlusal discrepancies than those made by the CCAD method (P < .001).
CONCLUSION
The fit accuracy of crowns fabricated using generative artificial intelligence was equivalent to those produced using the manual-input computer design method when the margins were well defined. While marginal and occlusal discrepancies were within clinically acceptable range, careful attention must be given to automated design outcomes, considering various tooth preparation shapes, anatomical structures, and clinical variations.
Details
- Title: Subtitle
- Fit accuracy of complete crowns fabricated by generative artificial intelligence design: a comparative clinical study
- Creators
- Thaw Thaw Win - Kyungpook National UniversityHang-Nga Mai - Hanoi University of Business and TechnologySo-Yeun Kim - Kyungpook National UniversitySeok-Hwan Cho - University of IowaJong-Eun Kim - Yonsei University College of DentistryViritpon Srimaneepong - Chulalongkorn UniversityJekita Kaenploy - University of Oklahoma Health Sciences CenterDu-Hyeong Lee - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The journal of advanced prosthodontics, Vol.17(4), pp.224-234
- DOI
- 10.4047/jap.2025.17.4.224
- PMID
- 40919046
- PMCID
- PMC12411301
- NLM abbreviation
- J Adv Prosthodont
- ISSN
- 2005-7806
- eISSN
- 2005-7814
- Publisher
- KOREAN ACAD PROSTHODONTICS
- Grant note
- Korea Medical Device Development Fund - Korea government: 202011A02
This work was supported by the Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, Republic of Korea, the Ministry of Food and Drug Safety) (202011A02).
- Language
- English
- Date published
- 08/2025
- Academic Unit
- Prosthodontics
- Record Identifier
- 9984958347702771
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