Authors: Laura Mendoza Oropeza, Ricardo Ortiz Sánchez, Antonio Fernández López
Background: The anomalies of number are those in which the number of teeth is higher or lower than that normally presented by each individual. Supernumerary teeth appear more frequently in the maxilla than in the mandible, with a greater predisposition for the male gender in a ratio of 2: 1. It has been observed that the presence of supernumerary teeth can cause alteration in the sequence and eruption of the teeth resulting in delayed eruption and consequently an alteration in the eruption and eruption sequence.
The objective of this study is the early diagnosis, elimination of Supernumerary teeth and control the tooth eruption space as the etiological factors that produces the alteration in the sequence and dental eruption.
Clinic Case: A 13-year-old patient presented to the UNAM Dental Clinic because she wanted to undergo orthodontic treatment. In the clinical examination, are observed generally thin teeth in the jaws, molars with talon cusps, low insertion of the braces causing diastema, late mixed dentition, prolonged retention of the mandibular left lower 1st molar, with no apparent mobility.
For the diagnosis, study models, clinical photographs (intraoral and extraoral) and panoramic radiography were taken. The radiographic analysis revealed presence of a diffusely “extra” tooth and the first molar of the first dentition with atypical resorption. In order to accurately visualize the supernumerary tooth, a Cone Beam volumetric tomography was taken. Treatment consisted of performing removable appliances to avoid loss of space (in which the first premolar erupts). the surgical extraction of the supernumerary and the first molar of the first dentition. The results obtained in this study were favorable and orthodontic traction placement was avoided while the retained tooth erupted.
Conclusion: The use of Cone Beam tomography allows to be made a more accurate diagnosis, locating the supernumerary tooth accurately, facilitating surgical treatment and reducing surgical time.
It is important to maintain the space so that the retained tooth can erupt by eliminating the risk factor and the eruption of the retained tooth was allowed, avoiding future complications.
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