フッ素含有歯磨剤の使用がホワイトニング剤の効果に及ぼす影響

概要

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A transient sensitivity during tooth whitening is generally reported to occur in 30% of patients, and tooth sensitivity sometimes leads to discontinuation of treatment. To prevent tooth sensitivity, application of sodium fluoride prior to use of whitening agents is recommended. This study evaluated the influence of fluoride containing dentifrice on the whitening effect of the agents. Eight human teeth were selected and each tooth crown was sectioned into two halves in the mesial-distal direction. One half of the sectioned tooth was brushed with fluoride containing dentifrice (900 ppm) and the other half was used as a control. After brushing, these specimens were treated by the 10% carbamide peroxide whitening agents. Color change was measured using a spectro-photometer and evaluated by the CIE L^*a^*b^*. Evaluations were performed at baseline and 7, 14, 21 and 28 days. The results were as follows: 1. While L^* value increased, a^* and b^* values decreased during tooth whitening. 2. Color change during tooth whitening was not affected by the use of a fluoride containing dentifrice. 3. Enamel surface texture during tooth whitening was not affected by the use of a fluoride containing dentifrice.
特定非営利活動法人日本歯科保存学会の論文
2006-10-31