Patients who remained concerned about enamel damage but want polishing can request the dental hygienist use a finer-grained paste.
想要洗牙的患者如果担心牙釉质的损坏，可以要求牙医使用颗粒更精细的抛光膏。
But if the decay continues and breaks through the surface of the enamel, the damage is permanent.
但是如果龋坏继续进行穿过表面的牙釉质，将会形成永久性损害。
Discoloration of the enamel, primer, or chrome or evidence of cadmium damage on the inner diameter of the axle may require the heat-damaged component be removed from service.
如果轴的内径上的珐琅、底漆、镀铬层退色或镀镉层损伤，应当在部件投入使用之前拆下热损部件。
Touching up damage to accessible enamel and primer in a timely manner can prevent the formation of corrosion pits and reduce the need for excessive rework during overhaul.
用时效方法可接近的珐琅和底漆进行接触性损伤检查有助于预防腐蚀斑点的形成并减少大修工作量。
The reasons of the of enamel reactor damage were dissected could and the corresponding repairing methods were put forward.
分析了搪瓷反应器损坏的原因，并提出了相应的修补方法。
self-treatments using baking soda, ash and hydrogen peroxide provided online with no dental experience, can strip tooth enamel and cause lasting damage to the gums, experts cautioned.
专业人士提醒，网上传播的用苏打粉、灰末以及过氧化氢进行牙齿儿美白的方法，若没有牙医的指导，会损伤牙釉质，给牙齿儿带来永久的危险。
self-treatments using baking soda, ash and hydrogen peroxide provided online with no dental experience, can strip tooth enamel and cause lasting damage to the gums, experts cautioned.
专业人士提醒，网上传播的用苏打粉、灰末以及过氧化氢进行牙齿儿美白的方法，若没有牙医的指导，会损伤牙釉质，给牙齿儿带来永久的危险。
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