DLP 프린터로 제작된 레진 임시수복물의 3차원적 정확도 평가
A Study of Three-dimensional evaluation of the accuracy of resin provisional restorations fabricated with the DLP printer
- Resource Type
- Article
Text
- Authors
- 강월; 이희경; Wol Kang; Hee-Kyung Lee
- Source
- 대한치과기공학회지, 03/31/2020, Vol. 42, Issue 1, p. 35-41
- Subject
- Accuracy
Crowns
Printing
- Language
- 한국어(KOR)
- ISSN
- 1229-3954
Purpose: The purpose of this study was to evaluate the accuracy of the DLP 3D printer by conducting 3-dimensional assesment of resin provisional restorations. Methods: The first premolar of the maxillary was prepared for the abutment. The abutment was scanned by using a scanner. The provisional restoration was designed by using CAD software. A total of 16 resin provisional restorations were produced using ZD200 and Veltz DLP 3D printer. Scanning was done of resin provisional restorations and 3-dimensional measurement was conducted for accuracy. The mean (SD) of RMS was reported for each group. Independent t-test was used to assess the statistical significance of the results. All analyses were done using SPSS 22.0. Results: The mean ± SD of RMS value for the accuracy of the resin provisional restorations that was fabricated by using ZD200 and Veltz DLP 3D printer were 50.85.±4.64㎛ and 70.33±6.31㎛. Independent t-test showed significant differences between groups(p<0.001). Conclusion: The resin provisional restorations made with DLP 3D printers showed clinically acceptable accuracy.