지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한예방치과학회 International Journal of Clinical Preventive Dentistry International Journal of Clinical Preventive Dentistry Vol.19 No.1
- 발행연도
- 2023.3
- 수록면
- 13 - 18 (6page)
이용수
초록· 키워드
오류제보하기
Objective: To evaluate the marginal and internal fitness of temporary dental resin according to the slice thickness of Digital Light Processing (DLP) 3D printers, considering the rapid spread and use of dental 3D printers.
Methods: The temporary dental resin specimens were classified into five groups according to the slice thickness of the DLP 3D printer: 0.01 mm, 0.025 mm, 0.075 mm, 0.1 mm, and 0.15 mm, with ten specimens in each group, amounting to a total of 50 specimens. The scanned data of the silicone impressions obtained from the scanner were evaluated for fitness in the marginal, axial, and cuspal regions using a CAD program.
Results: The mean values of the descriptive statistics of the gaps by slice thickness for DLP 3D printers showed the highest gaps in the 0.15 mm group, and relatively low gaps in the 0.01 mm group. When examined by site, the lingual cusp had the highest spacing, while the lingual margin had relatively low spacing. Significant differences were found by slice thickness (p＜0.001) and by measurement site (p＜0.001). There was a significant combined effect of Slice Thickness and Site (p=0.001).
Conclusion: Based on the above results, the temporary dental restorative resins produced by DLP 3D printers show higher fitness with thinner slice thickness and all of them are in the clinically acceptable range (＜120 μm), suggesting they can be sufficiently used for making temporary dental restorative resins.
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