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A case-control study of dental development in Hypodontic and Hyperdontic children
Wayne Y W Kan1, W Kim Seow, Trevor Holcombe
1Logan-Beaudesert Division, Metro South Health Service District, Queensland Health, Queensland, Australia.
Pediatric Dentistry
|May 21, 2010
Summary
Children with hypodontia (missing teeth) experience delayed dental development, particularly during puberty. However, children with hyperdontia (extra teeth) show normal dental development rates compared to their peers.
Area of Science:
- Pediatric Dentistry
- Dental Anthropology
- Oral Health Research
Background:
- Hypodontia and hyperdontia are common dental anomalies.
- Understanding their impact on dental development is crucial for clinical management.
- Previous research has yielded mixed results regarding developmental timing.
Purpose of the Study:
- To compare the rate of dental development in children with nonsyndromic hypodontia and hyperdontia against controls.
- To identify potential differences in developmental trajectories based on the presence of missing or extra teeth.
Main Methods:
- Dental age was assessed using orthopantomograms in 115 children with hypodontia and 61 with hyperdontia.
- Participants were age- and gender-matched with 176 healthy controls.
- Statistical analysis compared dental age to chronological age across groups.
Main Results:
- Children with hypodontia exhibited significantly delayed dental development compared to controls (P<.001).
- This developmental delay was more pronounced during puberty.
- No significant differences in dental development rates were found between children with hyperdontia and controls.
Conclusions:
- Nonsyndromic hypodontia is associated with delayed dental development.
- Nonsyndromic hyperdontia does not appear to affect dental development rates.
- Findings inform the management strategies for children with tooth agenesis and supernumerary teeth.
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