除非病人感觉过敏，通常在?窝区没有疼痛。

Some patients complain of constant pain without real remission.

目的：探讨我国牙齿感觉过敏症的流行病学特点。

AIM: To study the epidemiological features of dentin hypersensitivity (DH) in China.

目的: 探讨我国牙齿感觉过敏症的流行病学特点.

AIM : To study the epidemiological features of dentin hypersensitivity ( DH ) in China.

目的：观察半导体激光治疗牙齿感觉过敏症的疗效。

AIM: To observe the effects of treatment on hypersensitive dentine by semi-conductor laser.

目的：评价GLUMA治疗牙齿感觉过敏症的临床疗效。

AIM: To evaluate the clinical effects of GLUMA in treating tooth hypersensitivity.