Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Comparison of three-dimensional adaptation as per the rinsing time of temporary crown manufactured using a digital light processing printer

디지털 광 조명 방식으로 제작한 임시 크라운의 세척 시간에 따른 3차원 적합도 평가

  • Lee, Beom-Il (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University) ;
  • You, Seung-Gyu (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University) ;
  • You, Seung-Min (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University) ;
  • Kim, Ji-Hwan (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University)
  • 이범일 (고려대학교 일반대학원 보건과학과 치의기공전공) ;
  • 유승규 (고려대학교 일반대학원 보건과학과 치의기공전공) ;
  • 유승민 (고려대학교 일반대학원 보건과학과 치의기공전공) ;
  • 김지환 (고려대학교 일반대학원 보건과학과 치의기공전공)
  • Received : 2020.10.22
  • Accepted : 2020.12.07
  • Published : 2020.12.30
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Abstract

Purpose: This study aimed to compare three-dimensional adaptation with the rinsing time of the temporary crown produced using the digital light processing method. Methods: The maxillary right first molar abutment was scanned with a dental scanner. A temporary crown was designed with the scanned abutment. The designed crown was made of 10 temporary crowns using a digital light processing printer. The crowns were divided into the 5-minute and 10-minute rinsing groups; 5 temporary crown washes were performed for each group. In order to obtain the internal data, each group was scanned for a temporary crown. The three-dimensional fit was measured by superimposing the scanned internal surface data and the abutment data. The average comparison of three-dimensional adaptation was analyzed using the Mann-Whitney U test. Results: The 5-minute rinsing group showed a significantly higher adaptation of 71.42±3.08 ㎛ as compared to the 10-minute rinsing group (67.52±0.92 ㎛) (p<0.05). Conclusion: When making a temporary crown with a digital light processing method, a rinsing time of 10 minutes is appropriate.

Keywords

References

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