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Supernumerary premolars: a literature review
Roberto Solares1, Maria Isabel Romero
1American Board of Pediatric Dentistry, Hospital Angeles de las Lomas, Vialidad de la Barranca, Huixquilucan, México.
Pediatric Dentistry
|October 6, 2004
Summary
Supernumerary premolars are more common than previously thought, affecting 1% of the population, especially males. Early diagnosis with panoramic radiographs is crucial for managing these extra teeth.
Area of Science:
- Dentistry
- Oral Surgery
- Genetics
Background:
- Supernumerary premolars are extra teeth that develop in the dental arch.
- Previous estimates of their prevalence may be inaccurate.
Purpose of the Study:
- To review published cases of supernumerary premolars since 1932.
- To determine the incidence, prevalence, and characteristics of supernumerary premolars.
Main Methods:
- Systematic review of dental literature from 1932 to the present.
- Analysis of case reports focusing on supernumerary premolars.
Main Results:
- Supernumerary premolars occur 3 times more in males than females.
- Highest frequency (74%) is in the mandibular premolar region.
- Overall incidence is 1% (1 in 157), higher than previously reported.
- Recurrence after surgical removal is reported in 8% of cases.
Conclusions:
- Supernumerary premolars are more prevalent than previously estimated.
- A localized hyperactivity of the dental lamina is the leading developmental theory.
- Early diagnosis via panoramic radiography and regular follow-up are essential.
- Patients with early supernumerary teeth have a 24% risk of developing premolars later.