dove-tail groove是什么意思

用法例句

The dovetail of occlusion were prepared in the one group,the two retention grooves were prepared in the buccal or lingual axial angle in the other group.

方法　后牙邻面龋和邻面龋 (面损坏不超过 1/ 3)患牙2 76颗 ,常规制备邻面洞后 ,随机分为 2组 ,一组在面按常规备制成鸠尾 ,另一组仅在颊轴角及舌轴角处作 2条固位沟 ,两组均用银汞合金充填 ,随访 3年。