Int J Prosthodont 32 (2019), No. 6 7. Nov. 2019
Int J Prosthodont 32 (2019), No. 6 (07.11.2019)
Page 526-529, doi:10.11607/ijp.6363, PubMed:31664269
Accuracy of Clasps Fabricated with Three Different CAD/CAM Technologies: Casting, Milling, and Selective Laser Sintering
Tasaka, Akinori / Kato, Yoshimitsu / Odaka, Kento / Matsunaga, Satoru / Goto, Tazuko K. / Abe, Shinich / Yamashita, Shuichiro
Purpose: To compare the fabrication accuracy of clasps made using different CAD/CAM technologies.
Materials and Methods: Five clasps were created using three CAD/CAM technologies: casting from a resin pattern using additive manufacturing; computer numerical controlled milling; and selective laser sintering (SLS). Differences between the scan data of the clasps and the CAD data were statistically analyzed.
Results: There were significant differences in all parts of the clasps. The difference values were small overall for the SLS clasp.
Conclusion: This study demonstrated that SLS for clasp fabrication is outstanding in terms of fabrication accuracy and reproducibility.