n. 牙间隙;虚位
网络 齿虚位; 间隙裂; 牙间隙
The hematoma located in the narrow diastema;
血肿位于狭窄的腔隙内;
If the diastema is too big, the size harmony is important. A small artificial tooth added in the diastema is not good.
如果缝隙太宽,要注意大小协调,中间加一小塑料牙是不良设计。