대한심미치과학회지 (Journal of the Korean Academy of Esthetic Dentistry)

대한심미치과학회 (Korean Academy of Esthetic Dentistry)
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치아 탈수시 시간과 영역의 영향

Effect of time and area on tooth dehydration

  • Bo-Mi Oh (Department of Conservative Dentistry, Sun dental hospital) ;
  • Sun-Jae Kim (Department of Conservative Dentistry, Sun dental hospital) ;
  • Su-Jin Choi (Department of Conservative Dentistry, Sun dental hospital) ;
  • Ju-Hee Nam (Department of Conservative Dentistry, Sun dental hospital) ;
  • Su-Min Lim (Department of Pediatric Dentistry, Sun dental hospital)
  • 투고 : 2024.06.05
  • 심사 : 2024.06.26
  • 발행 : 2024.06.25
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초록

목적: 이 연구의 목적은 분광광도계를 사용하여 탈수시 시간과 치아 영역의 변화를 조사하는 것입니다. 재료 및 방법: 총 환자 수는 32명으로, 참가자의 나이는 20대(만 20~ 29세), 상악 우측 중절치를 대상으로 하였습니다. 치아전체 평균 및 치아 영역별(절단연:I, 중심부:M, 치경부:C) 색상을 평가하기 위해 Vita Easyshade Advance 4.0 분광광도계(VITA Zahnfabrik, 독일)를 사용했습니다. 탈수 중 분광광도계를 이용하여 5분 간격으로 10분 동안 CIELab(Commission International de l'Eclairage) 색상좌표를 측정하였습니다. L*, C, H°, a*, b* 및 색차(ΔE00)를 분산분석(ANOVA)을 통해 비교했습니다. 결과: 치아전체 평균색상의 L*, C, H°, b* 색상좌표(표 1)와 절단연 부위의 L*, C, b* 색상좌표(표 2)는 각각 기준선에서 10분 후까지 시간에 따라 통계적으로 유의미한 변화를 보였으며, 치아전체 평균색상의 ΔE00는 10분 동안 증가했지만 5분 이후에는 유의미한 변화가 없어 탈수 5분만으로 인지 가능한 차이를 만들 수 있음을 확인하였습니다. 결론: 이 연구 결과는 치아 탈수시 법랑질의 영향을 받는다는 것을 보여줍니다. 또한 탈수 후 5분 이내에 치아전체 평균색상에 눈에 띄는 변화가 발생하여 색상 측정 과정에 부정적인 영향을 미쳤습니다. 따라서 치아색상 측정 절차는 가능한 한 빨리 치아를 탈수시키기 전에 실시하는 것을 권장합니다.

Purpose: The aim of this study was to investigate any change of dehydration time and tooth area using a spectrophotometer. Material and Methods: Total number of patients was 32. Participant's age ranged from 20 to 29 years. The tooth included in the study was right sound maxillary central incisor. The Vita Easyshade Advance 4.0 spectrophotometer(VITA Zahnfabrik, Germany) was used to evaluate shade of average and tooth area(incisal: I, middle: M, cervical: C). Spectrophotometric measurements during dehydration were carried out at 5 minutes intervals for 10 minutes. Investigation of the differences of Commission International de l'Eclairage (CIELab) coordinates was conducted. RM-ANOVA was used to test the differences in L*, C, H°, a* and b* and ΔE00. Results: The L*, C, H° and b* color coordinates of the average shade(Table 1) and the L*, C, and b* color coordinates of the incisal area(Table 2) each showed statistically significant changes over time from baseline to 10 minutes later. The average tooth of ΔE00 increased over 10 minutes, but there was a significant change within 5 minutes. Conclusion: The findings of this study show that different areas of the tooth are affected by dehydration. Within 5 minutes of dehydrating the teeth, a noticeable change in tooth color occurred, which could negatively impact the shade selection process. Therefore dental shade matching procedures is recommended to be performed out before dehydrating the teeth as early as possible.

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참고문헌

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