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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제10권 제5호
- 발행연도
- 2018.1
- 수록면
- 367 - 373 (7page)
이용수
초록· 키워드
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PURPOSE. To evaluate the fit of a crown produced based on a 3D printed model and to investigate its clinical applicability. MATERIALS AND METHODS. A master die was fabricated with epoxy. Stone dies were fabricated from conventional impressions (Conventional stone die group: CS, n=10). Digital virtual dies were fabricated by making digital impressions (Digital Virtual die group: VD, n=10). 3D data obtained from the digital impression was used to fabricate 3D printed models (DLP die group: DD, n=10, PolyJet die group: PD, n=10). A total of 40 crowns were fabricated with a milling machine, based on CS, VD, DD and PD. The inner surface of all crowns was superimposed with the master die files by the “Best-fit alignment” method using the analysis software. Oneway and 2-way ANOVA were performed to identify significant differences among the groups and areas and their interactive effects (α=.05). Tukey’s HSD was used for post-hoc analysis. RESULTS. One-way ANOVA results revealed a significantly higher RMS value in the 3D printed models (DD and PD) than in the CS and DV. The RMS values of PD were the largest among the four groups. Statistically significant differences among groups (P<.001) and between areas (P<.001) were further revealed by 2-way ANOVA. CONCLUSION. Although the fit of crowns fabricated based on the 3D printed models (DD and PD) was inferior to that of crowns prepared with CS and DV, the values of all four groups were within the clinically acceptable range (<120 μm).
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참고문헌 (27)
참고문헌 신청
van Noort R / 2012 / The future of dental devices is digital / Dent Mater 28:3~12
Yau HT / 2016 / Comparison of 3-D printing and 5-axis milling for the production of dental e-models from intra-oral scanning / Comput Aided Des Appl 13:32~38
Holmes JR / 1989 / Considerations in measurement of marginal fit / J Prosthet Dent 62:405~408
Cho SH / 2015 / Comparison of accuracy and reproducibility of casts made by digital and conventional methods / J Prosthet Dent 113:310~315
Ueda K / 2016 / Fit of 4-unit FDPs from CoCr and zirconia after conventional and digital impressions / Clin Oral Investig 20:283~289
Yau HT / 2016 / Comparison of 3-D printing and 5-axis milling for the production of dental e-models from intra-oral scanning / Comput Aided Des Appl 13:32~38
Holmes JR / 1989 / Considerations in measurement of marginal fit / J Prosthet Dent 62:405~408
Cho SH / 2015 / Comparison of accuracy and reproducibility of casts made by digital and conventional methods / J Prosthet Dent 113:310~315
Ueda K / 2016 / Fit of 4-unit FDPs from CoCr and zirconia after conventional and digital impressions / Clin Oral Investig 20:283~289
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