目的研究氟离子导入过敏牙本质后牙本质小管的形态变化。
Objective to study the conditions and alterations of dentin tubule orifices after fluoride iontophoresis into hypersensitive dentin.
目的探讨NS牙面涂料对牙本质过敏症的治疗机制。
Objective To know the mechanisms of treating dentine hypersensitivity by ns Paint.
目的：探讨激光治疗牙本质过敏症时，牙髓组织的刺激性影响。
Purposes:To investigate the histopathological effect of laser treatment for hypersensitive dentine on dental pulp.
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