subject | 나노하이드록시아파타이트의 치아미백시 지각과민(시린이)증상 완화 효과 |
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writer | 관리자 |
date | 19-01-30 15:18 |
hit | 1,329 |
관련링크본문J Esthet Restor Dent. 2012 Aug;24(4):268-76. doi: 10.1111/j.1708-8240.2011.00437.x. Epub 2011 May 12. Effect of a nano-hydroxyapatite paste on bleaching-related tooth sensitivity.치아미백 관련 지각과민증상(시린이)에 나노하이드록시아파타이트 페이스트의 효과 AbstractSTATEMENT OF THE PROBLEM:Bleaching-related tooth sensitivity has been shown to be facilitated by the presence of enamel defects. A nano-hydroxyapatite (n-HAP) paste has been shown to repair these defects. PURPOSE OF THE STUDY:Using a randomized clinical trial, an n-HAP paste was investigated to determine its efficacy in reducing bleaching-related tooth sensitivity. METHODS AND MATERIALS:An n-HAP paste (Renamel AfterBleach, Sangi Co., Ltd., Tokyo, Japan) and a placebo (zero-HAP) were randomly assigned for use in 42 participants. A 7% hydrogen peroxide gel was used twice daily for 14 days, with use of assigned desensitizer for 5 minutes immediately following. A diary was completed daily for 4 weeks to note: use of the agents and sensitivity on a visual analog scale (VAS). Three aspects of tooth sensitivity were investigated: percentage of participants; number of days; and intensity level. Color change was assessed. RESULTS:For Groups zero-HAP and n-HAP, respectively, 51 and 29% of participants reported tooth sensitivity (p = 0.06). Days of sensitivity were 76 and 36, respectively (p = 0.001). Change in VAS score from baseline trended higher for group zero-HAP (p = 0.16). Color change was equivalent. DISCUSSION:The data trend indicated group n-HAP experienced less sensitivity over all three measures. Only the number of days of sensitivity was statistically significant. CONCLUSION:Within the limits of the study it can be concluded that the use of the n-HAP paste was associated with a statistically significant reduction in the number of days of tooth sensitivity experienced during active bleaching. CLINICAL RELEVANCE:For those using a tooth whitener without a desensitizing agent, this study indicates that a paste containing nano-hydroxyapatite crystal can effectively reduce the duration of tooth sensitivity. 나노하이드록시아파타이트 결정을 함유한 페이스트가 치아미백시 생기는 지각과민현상을 효과적으로 줄일 수 있다. |
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