0.25%의 hydroxyapatite 함유 치약과 0.75%의 hydrogen peroxide 제제를 함유한 치약의 치아미백 효과 비교

Objectives: The aim of this study was to compare the tooth bleaching effect of two whitening materialsin toothpaste i.e., hydroxyapatite and hydrogen peroxide on. In a randomized, double blinded controlled clinical trial, 85 participants with tooth colorations were assigned to use one of three toothpastes containing either hydroxyapatite (0.25%), hydrogen peroxide (0.75%), or no active ingredient (placebo). The patients were examined at baseline and 1, 2, and 3 months after usage. Methods: The patients underwent an oral examination, tooth shade measurement, and a subjective evaluation. During the oral examination, the patient`s oral health status was determined. Shade Eye NCC and Vita classical shade guide were used to determine the tooth color. Further, the patients were asked to assess the color of their own teeth using a visual analog scale (VAS) scale (range, 1-5). Results: According to the CIELAB system, a significantly greater color change (Δb*) was observed in the hydrogen peroxide group (2.10±1.54) than in the hydroxyl apatite (1.50±1.09) and control (0.94±0.75) groups after 3 months of toothpaste usage (P 0.05). The subjective evaluation results of thehydroxyapatite (P=0.023) and hydrogen peroxide (P=0.047) groups were statistically significant at each time point. Conclusions: The hydrogen peroxide-containing toothpaste caused significant lightening of tooth coloration than the hydroxyapatite and placebo toothpastes.