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Severe hypodontia: diversities in manifestations.
1Department of Pedodontics, School of Dentistry, University of Bergen, Norway. Per.Rasmussen@odont.uib.no
The Journal of Clinical Pediatric Dentistry
|February 25, 2000
Summary
This study on hypodontia found prevalent tooth agenesis in permanent dentition, with second premolars and incisors most affected. Patterns varied significantly between sexes and individuals, showing diverse manifestations of missing teeth.
Area of Science:
- Dentistry
- Human Genetics
- Developmental Biology
Background:
- Hypodontia, the congenital absence of one or more teeth, is a common dental anomaly.
- Understanding the prevalence and patterns of hypodontia is crucial for diagnosis and treatment planning.
Observation:
- A study of 33 pediatric patients (12 boys, 21 girls) with hypodontia revealed 332 missing permanent teeth.
- Second premolars, maxillary lateral incisors, and mandibular central incisors were the most frequently absent teeth.
- Males showed a higher prevalence of anterior segment agenesis, while females exhibited more posterior segment involvement.
Findings:
- Mean missing teeth were 11.4 in boys and 9.3 in girls, with significant individual variations.
- Maxillary central incisors were the most stable teeth, rarely absent.
- Agenesis patterns differed between jaws and sexes, with some cases showing extreme anterior or posterior tooth loss.
Implications:
- The diverse manifestations of hypodontia highlight the complexity of dental development.
- Further research is needed to elucidate the genetic and environmental factors contributing to these varied patterns.
- Accurate identification of hypodontia patterns aids in personalized dental care and orthodontic treatment strategies.