目的了解患者对超声洁治术的畏惧情况，以便为临床操作提供指导依据。

Objective To investigate the patients fear of ultrasonic scaling and provide data for its clinical practice.

youdao

目的了解患者对超声洁治术的畏惧情况，以便为临床操作提供指导依据。

Objective To investigate the patients fear of ultrasonic scaling and provide data for its clinical practice.

youdao