Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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A Study of Three-dimensional evaluation of the accuracy of resin provisional restorations fabricated with the DLP printer

DLP 프린터로 제작된 레진 임시수복물의 3차원적 정확도 평가

  • Kang, Wol (Department of Dental Laboratory, Daegu Health College) ;
  • Lee, Hee-Kyung (Department of Dental Laboratory, Daegu Health College)
  • 강월 (대구보건대학교 치기공과) ;
  • 이희경 (대구보건대학교 치기공과)
  • Received : 2020.01.31
  • Accepted : 2020.03.09
  • Published : 2020.04.01
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Abstract

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.

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References

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