유효성분들을 배합한 치약제의 실험실적 및 임상적 치아미백유지 효과

• Published in: Han'guk Ch'iwisaeng Hakhoe chi Vol. 15; no. 2; pp. 325 - 332
• Main Authors: 안재현, Jae Hyun Ahn, 김지혜, Ji Hye Kim, 김종훈, Jong Hoon Kim
• Format: Journal Article
• Language: Korean
• Published: 한국치위생학회 30.04.2015
• Subjects: dentifrice; tooth whitening; whitening maintenance; 미백유지; 치아미백; 치약; 치의학
• ISSN: 2287-1705; 2288-2294
• DOI: 10.13065/jksdh.2015.15.02.325

Objectives: The purpose of this study was to investigate tooth whitening maintenance efficacy of several dentifrices containing effective ingredients for tooth whitening. Methods: Hydroxyapatite specimens(HAPs) staining was done by using modified Stookey’s methods. HAPs were treated with 2.9% hydrogen peroxide containing strip for whitening, and were shaken with several dentifrice slurry(dentifrice 1 : artificial saliva 2) for 30 minutes. The HAPs were finally dipped in staining solution for an hour. Shaking and dipping were repeated 4 times and lightness values were measured by colorimeter at each step. In clinical test, test 4 dentifrice and control dentifrice were evaluated by 21 subjects for 2 months after receiving institutional review board(IRB) approval. Organoleptic(vita shade guide) and instrumental(SHADEEYENCC) evaluation were performed for whiteness change of teeth. Statistical analysis was performed using repeated measures ANOVA, Tukey``s post hoc test and χ2-test(p<0.05). Results: All dentifrices showed statistical significance in comparison with control dentifrice containing sodium fluoride and test 4 dentifrice containing sodium pyrophosphate, sodium metaphosphate, candelilla wax, and sodium fluoride showed statistical significance in comparison with other dentifrices by inhibiting staining in vitro(p<0.05). In clinical test, test 4 dentifrice showed better effects than control dentifrice in organoleptic and instrumental evaluation in tooth whitening maintenance efficacy(p<0.05). The awareness toward tooth whitening maintenance efficacy for 2 months use showed that test 4 dentifrice was much better than control dentifrice, but did not show statistically significant(p>0.05). Conclusions: Dentifrice containing sodium pyrophosphate, sodium metaphosphate, candelilla wax and sodium fluoride was more effective in keeping teeth white.