Characteristics of 351 supernumerary molar teeth in Turkish population

Abstract

Objective: The aim of the present study was to evaluate the demographic profile of supernumerary molar (SM) teeth in people in various regions of Turkey. Study Design: A retrospective analysis was carried out on an initial sample of 104,902 subjects drawn from the ortopantographics files from 10 clinics in 7 Turkish cities with documentation of demographic data, the presence of SM teeth, their location, eruption, morphology, and position within the arch. In one region associated patho­logies and treatments were also evaluated. Results: Three hundred fifty-one SMs were detected in 288 patients, constituting 0.33% of the study subjects, with a greater frequency in females (56.4%). SMs were found more frequently in the maxilla (87.7%) than in the mandible, and distomolars (62.9%) were more common than paramolars. The SMs encountered were mostly of conical shape (45.7%), impacted (81.1%), and in a vertical position (52.1). The 33% of SM teeth were related to impacted molar teeth. Conclusion: The most common complication involving these teeth was soft tissue irritation. Demographic data from such specific extensive studies are crucial for improved diagnosis of SM teeth. Early detection allows for measures against complications and more successful therapy. Key words:Supernumerary molars, distomolar, paramolar, prevalence.

Rare Combination of Developing Unerupted Paramolar and Distomolar in Maxilla: A Case Report and Review of Literature

“…No gender predilection for distomolars were observed. But occurrence of paramolars were more prevalent in females than in males [1].…”

“…Odontoma: Although an odontoma may be considered a type of defective tooth development inclusion of odontomas in the morphologic categories of supernumerary teeth is controversial [1].…”

“…There were only few studies considering prevalence of supernumerary molar teeth [1,[8][9][10][11][12]. Basing on the collected data from available studies, prevalence of supernumerary molars (SM) is ranging between 0.001% to 0.57% [3,[8][9][10][11][12].…”

“…Only few studies report prevalence of more than 0.5% i.e., 2.1% [13]. In supernumerary molars distomolars were more common than paramolars in most of the studies on Turkish population [1,8,9,12]. Paramolars were more common than distomolars in only few studies reported by Cassetta on Italian Caucasian population [10] and Kumar and Gopal [11] study on Chennai population India.…”

“…This is also known as hyperdontia. Exact etiology of hyperdontia is unclear, but the most usual opinion is that supernumerary teeth develop due to horizontal proliferation or hyperactivity of the dental lamina [1]. They may appear as a single tooth or multiple teeth, unilaterally or bilaterally, erupted or impacted and in mandible/maxilla or both the jaws [2].…”