Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Evaluation on the repeatability of dental white light scanner-based digital impression

치과용 백색광 스캐너를 이용한 impression scanning의 반복 측정에 대한 안정성 평가

  • Jeon, Jin-Hun (Department of Health Science Specialized in Dental Lab. Science & Engineering, Graduate School, Korea University) ;
  • Lee, Kyung-Tak (Department of Health Science Specialized in Dental Lab. Science & Engineering, Graduate School, Korea University) ;
  • Kim, Hae-Young (Department of Health Science Specialized in Dental Lab. Science & Engineering, Graduate School, Korea University) ;
  • Kim, Ji-Hwan (Department of Health Science Specialized in Dental Lab. Science & Engineering, Graduate School, Korea University) ;
  • Kim, Woong-Chul (Department of Health Science Specialized in Dental Lab. Science & Engineering, Graduate School, Korea University)
  • 전진훈 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 이경탁 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김혜영 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김지환 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김웅철 (고려대학교 대학원 보건과학과 치의기공전공)
  • Received : 2012.12.06
  • Accepted : 2013.03.15
  • Published : 2013.03.30
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Abstract

Purpose: The purpose of this study was to evaluate the repeatability of dental white light scanner. Methods: The impression(Zerosil, Dreve, Germany) were digitized in white light scanner(Identica, Medit, Korea) to create 3-dimensional surface-models. The distribution of the discrepancies between the number of points in the corresponding CRM models and the point clouds in the others were measured by a matching-software(PowerInspect 2012, Delcam Plc, UK). The discriptive statistics were used for statistical analysis(SPSS 20.0). Results: The measurement of repeatablity showed very good reliability. The mean(SD) discrepancy value on the white light scanner digital models was 8.7(0.67) ${\mu}m$, based on SD and absolute mean values. Conclusion: These in vitro studies showed that repeatability of dental white light scanner is high reliability. These results can be confirmed in further clinical studies.

Keywords

References

  1. Dahlmo KI, Andersson M, Gellerstedt M, Karlsson S. On a new method to assess the accuracy of a CAD program. Int J Prosthodont, 14(1), 276-283, 2001.
  2. DeLong R, Heinzen M, Hodges JS, Ko CC, Douglas WH. Accuracy of a system for creating 3D computer models of dental arches. J Dent Res, 82(6), 438-442, 2003. https://doi.org/10.1177/154405910308200607
  3. Hewlett ER, Orro ME, Clark GT. Accuracy testing of three-dimensional digitizing systems. Dent Mater, 8(1), 49-53, 1992. https://doi.org/10.1016/0109-5641(92)90053-F
  4. Kenyon BJ, Hagge MS, Leknius C, Daniels WC, Weed ST. Dimensional accuracy of 7 die materials. J Prosthodont, 14(1), 25-31, 2005. https://doi.org/10.1111/j.1532-849X.2005.00007.x
  5. Kuroda T, Motohashi N, Tominaga R, Iwata K. Three-dimensional dental cast analyzing system using laser scanning. Am J Orthod Dentofacial Orthop, 110(4), 365-369, 1996. https://doi.org/10.1016/S0889-5406(96)70036-7
  6. Lee KT, Kim JH, Kim WC, Kim JH. Threedimensional evaluation on the repeatability and reproducibility of dental scanner-based digital models. Korean Acad Dent Tech, 34(3), 213-220, 2012. https://doi.org/10.14347/kadt.2012.34.3.213
  7. Luthardt RG, Sandkuhl O, Herold V, Walter MH. Accuracy of mechanical digitizing with a CAD/CAM system for fixed restorations. Int J Prosthodont, 14(1), 146-151, 2001.
  8. Persson M, Andersson M, Bergman B. The accuracy of a high-precision digitizer for CAD/CAM of crowns. Journal of Prosthetic Dentistry, 74(1), 223-229, 1995. https://doi.org/10.1016/S0022-3913(05)80127-1
  9. Persson A, Andersson M, Oden A, Sandborgh-Englund G. A three-dimensional evaluation of a laser scanner and a touch-probe scanner. J Prosthet Dent, 95(3), 194-200, 2006. https://doi.org/10.1016/j.prosdent.2006.01.003
  10. Persson AS, Andersson M, Oden A, Sandborgh-Englund G. Computer aided analysis of digitized dental stone replicas by dental CAD/CAM technology. Dent Mater, 24(8), 1123-1130, 2008. https://doi.org/10.1016/j.dental.2008.01.008
  11. Persson AS, Oden A, Andersson M, Sandborgh-Englund G. Digitization of simulated clinical dental impressions: virtual three-dimensional analysis of exactness. Dent Mater, 25(7), 929-936, 2009. https://doi.org/10.1016/j.dental.2009.01.100
  12. Quaas S, Rudolph H, Luthardt RG. Direct mechanical data acquisition of dental impressions for the manufacturing of CAD/CAM restorations. J Dent, 35(12), 903-908, 2007. https://doi.org/10.1016/j.jdent.2007.08.008
  13. Rudolph H, Luthardt RG, Walter MH. Computeraided analysis of the influence of digitizing and surfacing on the accuracy in dental CAD/CAM technology. Comput Biol Med, 2006.

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