1 The etiology of supernumerary teeth is not completely understood. Various theories exist for the different types of supernumerary teeth.2 One of the theories proposes that the supernumerary tooth is produced because of a dichotomy of the tooth bud.3 Another theory-the hyperactivity theory-suggests that they are formed because of local, independent, conditioned hyperactivity selleck chemical of the dental lamina.4 Genetics may also influence the development of supernumerary teeth.5 Supernumerary teeth may be classified based on form (conical type, tuberculate type, supplemental type, odontome) or position (mesiodens, paramolar, distomolar, parapremolar).6 The clinical complications of supernumerary teeth include root anomaly, malocclusion, root resorption, displacement or rotation, failure of eruption or delayed eruption of adjacent tooth, cyst formation, and pulp necrosis with loss of vitality and esthetic disturbances.
7 The most common supernumerary teeth, listed in order of frequency, are the maxillary midline supernumeraries (mesiodens), maxillary fourth molars, maxillary paramolars, mandibular premolars, maxillary lateral incisors, mandibular fourth molars, and maxillary premolars.8 The occurrence of multiple supernumerary teeth is often found in association with syndromes such as Gardner��s syndrome, Fabry Anderson Syndrome, Ellis Van Creveld Syndrome, Ehlers Danlos Syndrome, Incontinentia Pigmenti and Tricho-Rhino-Phalangeal Syndrome and developmental disorders such as Cleft lip and palate and Chondroectodermal dysostosis.9 The presence of supernumerary teeth may be associated with familial tendency.
10 Only a few examples of long-term follow-up of nonsyndromal bilateral supernumerary teeth have been reported in the literature.11 The aim of this study is to present an unusual case of a non-syndrome female patient with bilateral supernumerary teeth which occurred with an interval of several years. CASE REPORT A 9-year-old female patient presented to our clinic complaining of pain in her primary teeth. Medical and family histories were unremarkable. An intraoral examination showed that the patient had a Class I canine relationship on the right and left side and bilateral posterior crossbite due to bilateral constriction of the maxilla. Overjet and overbite were normal (Figure 1a). A panoramic survey of the teeth showed an unerupted super-numerary tooth that was located on the left side of the maxillary arch (Figure 1b).
A standard maxillary occlusal radiograph was taken to determine the position Dacomitinib of the unerupted tooth. The radiograph showed that the tooth was in a palatal position (Figure 1c). Following local anesthesia, a sulcular incision was performed and the supernumerary tooth was extracted via a palatal approach. The patient refused fixed orthodontic treatment and it was decided to observe the teeth and review the patient during the follow-up period.