They say individuals may have cavities, root exposures or other flaws that could cause problems after tooth bleaching.
牙医们说，那些有蛀牙、牙根外露或者有其他牙齿问题的人，可能在牙齿漂白后出现牙齿问题。
Objective:The objective of this study was to assess effects of enamel microabrasion during tooth bleaching on enamel bonding properties.
目的：探讨釉质微打磨与漂白联合治疗对瓷-釉质粘接强度的影响。
Objective: To sum up and analysis the causes of failure about treating pulpless and discolored anterior teeth with the method of interior tooth bleaching.
目的：总结和分析用内漂白方法治疗无髓变色前牙的失败原因。
The criteria for tooth selection dictated no pretreatment with a chemical agent such as alcohol, formalin, or hydrogen peroxide, or any other form of bleaching.
牙齿挑选标准规定未做过像酒精、甲醛、过氧化氢和其他漂白剂等化学用品预处理。
If bleaching doesn't help, ask your dentist about dental bonding, in which a tooth-colored material is applied to teeth.
如果漂白不起作用，请询问您的牙医，有关牙齿粘接事宜，有一种同牙齿同色的材料可以用于牙齿。
If bleaching doesn't help, ask your dentist about dental bonding, in which a tooth-colored material is applied to teeth.
如果漂白不起作用，请询问您的牙医，有关牙齿粘接事宜，有一种同牙齿同色的材料可以用于牙齿。
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