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Morphological characteristics of the deciduous teeth.
1Department of Pedodontics, School of Dentistry, China Medical Collage, 91 Hsueh Shih Road, Taichung, 404 Taiwan. tasipopo@tcts.seed.net.tw
The Journal of Clinical Pediatric Dentistry
|April 21, 2001
Summary
Boys exhibit larger deciduous teeth crown dimensions than girls, with specific differences noted in canine and molar sizes. Some teeth showed distinct slender shapes in one sex, indicating sexual dimorphism in primary dentition morphology.
Area of Science:
- Dental Morphology
- Human Anatomy
- Pediatric Dentistry
Background:
- Understanding deciduous teeth morphology is crucial for assessing growth and development.
- Sexual dimorphism in dental dimensions can provide insights into biological variations between sexes.
Purpose of the Study:
- To investigate and compare the mesiodistal and buccolingual crown dimensions of deciduous teeth between boys and girls.
- To identify potential sexual dimorphism in the morphology of primary dentition.
Main Methods:
- Measurement of mesiodistal and buccolingual crown dimensions for deciduous canines and molars.
- Comparative statistical analysis of these dimensions between male and female subjects across both dental arches.
Main Results:
- Boys showed significantly larger mean mesiodistal crown dimensions for deciduous canines and first/second molars compared to girls.
- Boys also had significantly larger mean buccolingual crown dimensions for deciduous second molars than girls.
- Specific teeth exhibited sex-related shape variations: the upper deciduous first molar was buccolingually slender in girls, and the lower deciduous second molar was mesiodistally slender in boys.
Conclusions:
- Significant sexual dimorphism exists in the crown morphology of deciduous teeth.
- Boys generally possess larger deciduous teeth dimensions, with specific teeth showing sex-related slender characteristics.