“牙间隙”的拼音为：yá jiàn xì...

牙线可用来清洁牙间隙.Dental floss is used to clean between your teeth.发生阻生的局部因素主要是牙间隙不足.The main factor lead to impacted teeth was insufficient interdentium.关闭磨牙间隙后牙槽骨改建及牙根吸收情况.Root resorption after the closure of molar space....

“牙间隙”的英语可以翻译为：diastema，interdentium ...