A sixteen year sample of surgically treated supernumerary teeth

Authors:

ABSTRACT

Aim

Supernumerary teeth represent a numerical dental anomaly in which more teeth than the norm are present in
the dentition. A sixteen year sample of supernumerary teeth has been reviewed in order to analyse epidemiological data,
morphological and topographic features of these teeth, especially of those located in the praemaxillary region. MATERIALS
AND

Methods

All cases in which supernumerary teeth were surgically treated from 1991 to 2006 at the Oral Surgery Unit of
the Sapienza University of Rome have been reviewed.

Results

118 Caucasian subjects with supernumerary teeth have
been reviewed in the range of age comprised between 5 and 42 years: 191 SNTs were collected, 136 from the upper jaw and
55 from the mandible. In the maxilla the incisor region was more frequently involved (67.65), while in the mandible
the one most frequently involved was the premolar region (69.1). Conoid was the most frequent type of
supernumerary teeth. Uneruption of the contiguous permanent teeth was the most commonly associated pathological
condition, found in 81 out of the 191 cases of supernumerary teeth (40 patients, 42.4). Tuberculated, infundibuliform
and incisiform-shaped teeth caused uneruption of permanent teeth more frequently than the other morphological types of
supernumerary teeth.

Conclusion

In the upper incisor area, the extraction of SNT is mandatory as early as they are
diagnosed, especially if they are tuberculated, infundibuliform and incisiform-shaped, if they are located palatally or just in
the middle of the ridge and when more than one SNT is present.

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