1·Teeth with chronic caries will tend to be darker in color because the edges of the cavities become stained from normal eating and drinking.
牙齿慢性龋将趋于较深的颜色，因为边缘龋洞被正常吃的食物所染色。
2·Could you point out a single picture from the book and tell the story it caries?
你能不能指出一个单一的图片，并从书中讲述它龋？
3·Objective To explore a new method for effective and safe prevention and treatment of caries.
目的探索安全、有效、简便的生物制品防治龋病的新途径。
4·It is discovered that secondary caries and losing of retention are the main reasons for the failure of fixed prostheses.
研究发现，继发龋和冠固位丧失是固定修复失败的主要原因。
5·So it is feasible to diagnose pulp diseases with caries by crown pulp tissue.
作者认为利用冠髓组织对龋性牙髓病进行诊断也是可行的。