[速览]7 ．Dental Caries龋 齿

病人：我后面的牙有个洞。病人：我在上海补的牙现在又开始痛了。Doctor：Do you have any pain？医生：痛吗？Doctor：Does the tooth hurt when coming in contact with sweet or cold things？Doctor：It is a deep cavity，we ’ ll have an X‐ray taken of that tooth just to make sure about the apex ． If it is in ......