Korean J Oral Maxillofac Radiol.
2010 Jun;40(2):89-91.
Impacted supernumerary tooth in coronoid process: a case report
- Affiliations
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- 1Department of Advanced General Dentistry, College of Dentistry, Yonsei University, Korea. kdkim@yuhs.ac
- 2Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Korea.
- 3Department of Oral and Maxillofacial Radiology, College of Dentistry, Yonsei University, Korea.
- 4Human Identification Research Center, College of Dentistry, Yonsei University, Korea.
Abstract
- Impaction of tooth is a situation in which an unerupted tooth is wedged against another tooth or teeth or otherwise located so that it cannot erupt normally. The supernumerary tooth is also called as hyperdontia and defined as the condition of having additional tooth to the regular number of teeth. The most common supernumerary tooth is a mesiodens, which is a mal-formed, peg-like tooth that occurs between the maxillary incisors. The supernumerary tooth is commonly impacted but they are frequently impacted on maxilla. Ectopic impaction of supernumerary tooth on mandibular condyle, coronoid process, ascending ramus, and pterygomandibular space is very rare condition. In this case, we report a case of impacted supernumerary tooth on mandibular sigmoid notch without definite pathologic change.
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