目的从微生态学角度探讨悬突引起牙周炎的机制，揭示悬突对牙周组织的危害性。

Objective to probe into the mechanism of periodontitis caused by overhanging in the view of microecology and to illuminate the damage of overhanging to periodontal tissue.

youdao

目的从微生态学角度探讨悬突引起牙周炎的机制，揭示悬突对牙周组织的危害性。

Objective to probe into the mechanism of periodontitis caused by overhanging in the view of microecology and to illuminate the damage of overhanging to periodontal tissue.

youdao