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KMID : 0896020100400020089
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Korean Journal of Oral and Maxillofacial Radiology
2010 Volume.40 No. 2 p.89 ~ p.91
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Impacted supernumerary tooth in coronoid process
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Park Won-Se
Park Hyok
Lee Jae-Ho
Kim Kee-Deog
Jeong Ho-Gul
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Abstract
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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 moesiodens, 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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KEYWORD
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Supernumerary tooth, Impaction, Coronoid process
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