which of the following is the most likely postoperative complication of bleaching a tooth that has not been adequately obturated?
- fracture
- discoloration
- acute apidal periodontitis
- chronic .......
- external cervical root resorption
answer key says that acute apical periodontitis is the correct answer. why??
- fracture
- discoloration
- acute apidal periodontitis
- chronic .......
- external cervical root resorption
answer key says that acute apical periodontitis is the correct answer. why??