Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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An evaluation of quality of dental prostheses printed by dental 3-dimensional printing system

치과용 3D 프린팅 시스템에 의해 출력된 보철물의 품질 평가

  • Han, Man-So (Department of Dental Lab Technology, Daejeon Health Institute of Technology)
  • 한만소 (대전보건대학교 치기공과)
  • Received : 2016.07.25
  • Accepted : 2016.09.12
  • Published : 2016.09.30
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Abstract

Purpose: The purpose of this study were to evaluate the quality of dental prostheses printed by 3-dimensional printing system. Methods: Mater model was prepared and ten study models were fabricated. Ten single crowns were printed by 3D-printing system(Resin group) and another ten single crowns using casting method were manufactured(Metal group). The marginal adaptation of single crowns were measured using by silicone replica technique. Silicone replicas were sectioned four times. The marginal adaptations were evaluated using by digital microscope. Statistical analyses were performed with Mann-Whitney test(${\alpha}=0.05$). Results: $Mean{\pm}standard$ deviations of all marginal adaptations were $92.1(20.0){\mu}m$ for Metal group and $69.7(12.3){\mu}m$ for Resin group. Two groups were no statistically significant differences(p>0.05). Conclusion: Marginal adaptation of single crowns printed by 3D-printing system were ranged within the clinical recommendation.

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References

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