지각과민 처치제 도포 후 칫솔질에 의한 마모가 상아질 투과도에 미치는 영향
THE EFFECTS OF DESENSITIZING AGENTS AND TOOTH BRUSHING ON DENTIN PERMEABILITY, IN VITRO
이종욱, 심준성, 이근우,
소속 상세정보
이종욱 ( Lee Jong-Wook ) - 연세대학교 치과대학 치과보철학교실
심준성 ( Shim June-Sung ) - 연세대학교 치과대학 치과보철학교실
이근우 ( Lee Keun-Woo ) - 연세대학교 치과대학 치과보철학교실
KMID : 0362420010390020208
Abstract
To study the effect of dentin permeability on a tooth with wear from tooth brushing after application of desensitizing agent, extracted teeth free from caries were chosen. Coronal dentin discs with thickness of 1mm were prepared. Using the split chamber device developed by Pashely, hydraulic conductance, scanning electron microscope images (SEM) and atomic force microscope images (AFM) were compared and contrasted before and immediately after the application of desensitizing agent and after equivalent tooth brushing of 1 week, 2 weeks, and 6 weeks. Four commercially available desensitizing agents were used in this study: they were Gluma, Seal & Protect, All-Bond 2 and MS Coat. The results of this study are as follows. 1. On all specimens, the hydraulic conductance decreased after the application of tooth desensitizing agent. 2. Except the specimens treated with MS Coat, the remaining specimens had an increase in dentin permeability after tooth brushing for 1 and 2 weeks but a decrease after 6 weeks. 3. The specimens treated with MS Coat had statistically significant increase in the dentin permeability regardless with the duration of tooth brushing. 4. On examination of SEM and AFM, the dentinal tubule diameter had decreased after treatment of desensitizing agents. The specimens other than those treated with MS Coat, smear layers were noted after tooth brushing. It is not always consistent but the hydraulic conductance correlated with the images from SEM and AFM.
키워드
Dentin permeability; Desensitizing agent; Smear layer; Tooth sensitivity
원문 및 링크아웃 정보
등재저널 정보