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KMID : 0358920050320040670
Journal of the Korean Academy of Pedodontics
2005 Volume.32 No. 4 p.670 ~ p.674
MESIODENS IN THE VAULT OF THE PALATE
Min Sung-Jin

Choi Hyung-Jun
Kim Seong-Oh
Lee Jae-Ho
Kwak Ji-Youn
Choi Byung-Jai
Abstract
Supernumerary tooth develops as a result of abnormal proliferation of the dental lamina during the initiation stage of dental development. It could be a sporadic occurrence or a hereditary transmission. Supernumerary tooth occurs with a frequency of 1 to 3%, Generally, there is a 2:1 preference for boys. It is usually found in the anterior portion of the maxilla and may be associated with complications such as impaction, malposition of permanent teeth, formation of diastema, cysts and eruption into nasal cavity.

The position of supernumerary tooth found in the anterior portion of the maxilla is determined by the axis of the tooth. One third of supernumerary tooth in the anterior portion of the maxilla has no possibility of eruption due to its invertedly impacted position. However, as long as the coronal part of the follicle remain intact, migration of supernumerary tooth is possible. The migration may occur into the palate, the premolar region, the sinus or the nasal cavity. Also, growth of vertical dimension of maxilla could make surgical approach difficult as time goes by.

For this reason, we have found invertedly impacted mesiodens moved to the vault of the palate in the two cases, and extracted supernumerary tooth surgically.
KEYWORD
Supernumerary tooth, Tooth migration, Tooth eruption
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