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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Retrospective study of 145 supernumerary teeth
Paula Fernández Montenegro1, Eduard Valmaseda Castellón, Leonardo Berini Aytés
1Facultad de Odontología de la Universidad de Barcelona.
Medicina Oral, Patologia Oral Y Cirugia Bucal
|July 4, 2006
Summary
Supernumerary teeth, particularly mesiodens, are common in the jaw and can impact permanent teeth eruption. Early extraction of these extra teeth can facilitate normal tooth alignment.
Area of Science:
- Dentistry
- Oral Surgery
- Radiology
Background:
- Supernumerary teeth, or hyperdontia, occur in 0.5-3.8% of permanent dentition.
- While often linked to genetic syndromes, they can also appear in healthy individuals.
Purpose of the Study:
- To determine the distribution of supernumerary teeth in patients treated at an oral surgery clinic.
- To analyze the prevalence, location, morphology, and type of supernumerary teeth.
Main Methods:
- Retrospective analysis of 36,057 patient records from 1991-2003.
- Extracted data included age, sex, number, location, morphology, and type of supernumerary teeth.
- 102 patients with 147 supernumerary teeth were included in the final study.
Main Results:
- Mesiodens were the most common (46.9%), followed by premolars (24.1%) and fourth molars (18%).
- Most supernumerary teeth were in the maxillary bone (74.5%) and palatine/lingual area (46.9%).
- Two-thirds were heteromorphic (conical shape most frequent); 29.7% occluded with permanent teeth.
Conclusions:
- Mesiodens frequently cause permanent incisor impaction, often resolving after extraction.
- Supernumerary premolars are typically asymptomatic and discovered incidentally.
