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A multi-centre evaluation of multiple supernumerary premolar prevalence
Australian Orthodontic Journal
|March 23, 2016
Summary
The prevalence of multiple supernumerary premolars in non-syndromic Turkish patients is 0.39%. These extra teeth most commonly occur in the mandible and are associated with Class II malocclusions.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Orthodontics
Background:
- Multiple supernumerary teeth are rare, often linked to genetic syndromes.
- Non-syndromic cases are infrequently reported, necessitating further investigation.
- Understanding prevalence and associations is crucial for diagnosis and treatment planning.
Purpose of the Study:
- To determine the prevalence of supernumerary premolars in a non-syndromic Turkish population.
- To explore the association between supernumerary premolars and malocclusion types.
- To analyze the distribution and characteristics of these anomalies.
Main Methods:
- Retrospective analysis of 10,700 patient records and panoramic radiographs from three university hospitals.
- Data collected included age, gender, malocclusion type, number, location, and position of supernumerary premolars.
- Complications such as pain, cystic changes, and root resorption were also recorded.
Main Results:
- Forty-two non-syndromic cases with multiple supernumerary premolars were identified.
- A total of 97 supernumerary premolars were found, yielding a prevalence of 0.39%.
- The majority of supernumerary premolars were located in the mandible, with a statistically significant predilection.
Conclusions:
- The prevalence of multiple supernumerary premolars in this Turkish cohort is 0.39%.
- Mandibular location was significantly more common for these extra teeth.
- A higher association was observed between supernumerary premolars and Class II malocclusions.
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