Note appearance of pontic at gingival margin.

注意：出现在牙龈缘桥。

Expasyl: a new material for gingival retraction-Clinical application.

一种新型排龈材料的临床应用。

Objective To observe the relation between mast cells and gingival cancer.

目的探讨肥大细胞与牙龈癌的关系。

A rubber dam is needed to prevent the superoxol from burning the gingival.

需要做个橡皮障免得牙龈被烧伤了。

According to statistics around 95% of gingival bleeding in oral AIDS cases.

据统计95%左右的龈出血艾滋病病例在口腔。