Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU).
Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University.
Dent Mater J. 2021 May 29;40(3):820-826. doi: 10.4012/dmj.2020-308. Epub 2021 Mar 27.
This study aimed to examine whether discoloration of carious dentin after silver-diammine-fluoride (SDF) application might be used as a mean to detect demineralized-dentin. Fourty specimens were obtained from 20 human permanent teeth. Teeth were sectioned through the center of carious lesions to create 2-halves in which each half was assigned to a treatment group. Specimens were divided into two groups (n=20) (each half was assigned to one group) according to solution, namely Caries Check (CC), or SDF. SDF group was subdivided into 2 groups: light-cured and 2-day storage groups. The specimens were tested using light-microscope, microhardness test and SEM/EDS analysis. Repeated-measures ANOVA was used for statistical analysis. The light-microscope showed superficial discoloration in the CC-group while SDF (2-day storage) group showed deeper discoloration for the lesion area. SDF showed significant increase in the hardness compared with the CC-group. SDF showed potentiality to be used as an assisting-tool for caries detection.
本研究旨在探讨银胺氟化物（SDF）应用后牙本质变色是否可作为检测脱矿牙本质的一种手段。从 20 个人类恒磨牙中获得 40 个样本。通过牙体中心将牙齿切片，制成两半，每一半分配到一个治疗组。根据溶液（Caries Check，CC 或 SDF）将标本分为两组（n=20）（每一半分配到一组）。SDF 组再分为 2 组：光固化组和 2 天储存组。使用显微镜、显微硬度测试和 SEM/EDS 分析对标本进行测试。采用重复测量方差分析进行统计学分析。显微镜显示 CC 组表面变色，而 SDF（2 天储存）组病变区域显示更深的变色。SDF 组的硬度与 CC 组相比有显著增加。SDF 有潜力作为龋病检测的辅助工具。
