Complex odontoma commonly lies in right side of maxilla but in this case it was present very near to the midline which was mimicking mesiodens
but histopathological investigation ruled it out.
Non-syndromic occurrence of true generalized microdontia with mandibular mesiodens
- a rare case.
Los dientes supernumerarios se pueden clasificar de acuerdo a su posicion en mesiodens
, paramolares, parapremolares y cuartos molares, y de acuerdo a su forma en suplementarios o eumorficos y rudimentarios o dismorficos, pudiendo estos ultimos ser de tipo conico, tuberculado, molariforme y odontoma (Primosch, 1981; Garvey et al., 1999; Sebastian Sebastian et al., 2016).
Dentigerous cysts are the second most common type of odontogenic cysts after radicular cysts and also the most common developmental cyst of the jaws. The term dentigerous literally means 'tooth bearing.' The term was coined by Paget in 1853 and arises from the crowns of impacted, embedded, or unerupted teeth. Dentigerous cysts which are associated with supernumerary teeth constitute 5%-6% and about 90% of them are dentigerous cysts associated with maxillary mesiodens
ST can be classified on the basis of the morphology (conical, tuberculate, supplemental, and odontomes), location (mesiodens
, paramolar, distomolar, and parapremolar), position (buccal, palatal, and transverse), and orientation (vertical or normal, inverted, transverse, or horizontal).
Frequency of supernumerary teeth, in decreasing order, has been reported as upper lateral incisors (50%), mesiodens
(36%), upper central incisors (11%), and bicuspids (3%) (8).
Supernumerary teeth were commonly observed in the maxillary anterior region as mesiodens
In their study, majority of the supernumerary teeth were mesiodens
. Another study of large sample (2,393) Saudi Arabian children had the prevalence of supernumerary tooth to be 0.5%.16
Hyperdontia in the form of the middle tooth (mesiodens
) occurred in a one boy (0.4%) from a small town.