In addition, about thirty percent of the city's residents have dentine hypersensitivity, and teeth yellow and tone problem also nots allow to ignore.
此外，约百分之三十的城市居民有牙本质敏感问题，而牙齿偏黄和口气问题也不容忽视。
They are abrasive and can wear your enamel away and in the long-term lead to sensitivity and darkening of your teeth as the enamel wears and the inner amber-coloured dentine becomes visible.
它们都有研磨作用，会磨损牙釉质，长此以往会导致牙齿敏感和发黑，因为牙釉质磨损会暴露出里面黄褐色的牙质。
Dentine hypersensitivity is a sharp, sudden pain arising from the teeth when exposed to touch or hot and cold foods.
象牙质敏感是当牙齿接触或冷或热的食物所引起的急剧的，短暂的疼痛。
This can result in yellowing teeth - because the acid strips the enamel and starts to reveal darker-coloured dentine underneath.
此外氯还会导致一口黄牙，因为酸性物会剥蚀掉釉质，致使后层颜色较深的牙质显露出来。
PURPOSE: to study and evaluate the effect preventing dentine hypersensitiveness by using Fluor Protector or Green OrTM on the prepared vital pulp abutment teeth of PFM Bridges.
目的：评价氟保护剂和极固宁TM对烤瓷冠桥活髓基牙预备后牙本质过敏症的防治效果。
Objective:To study and evaluate the effect preventing dentine hypersensitivity by using GlumaTM or Fluor Protector on the prepared vital pulp abutment teeth of the crown.
目的本实验评估体外脱矿环境中氟保护漆对覆盖义齿基牙的防龋作用，为临床预防覆盖义齿基牙龋坏提供参考。
Methods Semiconductor laser was compared with conventional NaF method for the treatment of 100 teeth with typical hypersensitive dentine which were divided into two groups.
方法牙本质过敏的患牙10 0颗，分为两组，一组用半导体激光治疗，一组用常规氟化钠脱敏。
Methods Semiconductor laser was compared with conventional NaF method for the treatment of 100 teeth with typical hypersensitive dentine which were divided into two groups.
方法牙本质过敏的患牙10 0颗，分为两组，一组用半导体激光治疗，一组用常规氟化钠脱敏。
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