Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Color Change in Tooth Induced by Various Calcium Silicate-Based Pulp-Capping Materials

수 종의 칼슘-실리케이트 치수복조제의 치관 색조 변화

  • Jeon, Jiyoon (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Choi, Namki (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Kim, Seonmi (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University)
  • 전지윤 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 최남기 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 김선미 (전남대학교 치의학전문대학원 소아치과학교실)
  • Received : 2020.12.24
  • Accepted : 2021.02.24
  • Published : 2021.08.31
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Abstract

Color stability of pulp-capping material is considered vital to the final aesthetic result since the material is placed in the coronal area. The purpose of this study was to compare the color stability of various pulp-capping materials by analyzing color change of tooth over time. A cavity was formed in the crown of the extracted premolar, and 4 types of pulp-capping materials were filled. Color assessment was performed with a spectrophotometer at different intervals: before placement; immediately after material placement; 1 day, 1 week, 2 weeks, 4 weeks, 8 weeks, 12 weeks, and 16 weeks after placement. Proroot white MTA® and TheraCal LC® showed a significant decrease in the L* value and an increase in the ∆E* value over time. In contrast, Biodentine® and Well-RootTM PT showed no significant change in the L* value and maintained a steady ∆E* value. The application of pulp-capping materials containing bismuth oxide as a radiopacifier may result in a color change of teeth. Long-term color stability of pulp-capping materials should be considered when treating teeth with thin enamel thickness or in aesthetically important area.

치수복조제는 치관부에 위치하기 때문에 색 안정성이 최종적인 심미성에 영향을 미치는 중요한 요소로 간주된다. 이 연구는 시간에 따른 치관의 색조 변화를 분석하여 치수복조제의 색조 안정성을 비교해보고자 하였다. 발거된 소구치의 치관에 와동을 형성하고 4가지 종류의 치수복조제를 충전하였다. 색상 변화는 분광광도계를 사용하여 재료를 넣기 전, 재료를 넣은 즉시, 재료를 넣고 1일 후, 1주 후, 2주 후, 4주 후, 8주 후, 12주 후, 16주 후에 측정을 시행하였다. Proroot white MTA®와 TheraCal LC®는 시간이 지남에 따라 지속적인 L* 값의 감소와 ∆E* 값의 증가를 보였다. 반면 Biodentine®과 Well-rootTM PT는 유의한 L* 값의 변화가 없었고 일정한 ∆E* 값을 유지하였다. 방사선 불투과성 물질로 산화 비스무트가 포함된 치수복조제의 적용 시 치아의 색조 변화가 나타날 수 있으며, 법랑질의 두께가 얇은 유치의 수복이나 전치부의 심미 수복 시 치수복조제의 장기적인 색 안정성을 고려해야 한다.

Keywords

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