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A radiographic study of tooth development in hypodontia
S Uslenghi1, H M Liversidge, F S L Wong
1Dental Institute, Barts and The London School of Medicine and Dentistry, Turner Street, Whitechapel, London E1 2AD, UK.
Archives of Oral Biology
|August 13, 2005
Summary
Children with hypodontia (missing teeth) show significantly delayed permanent tooth development. The severity of missing teeth correlates with the degree of developmental delay, impacting adjacent teeth as well.
Area of Science:
- Dentistry
- Pediatric Dentistry
- Oral Radiology
Background:
- Congenital absence of teeth, or hypodontia, is a common dental anomaly.
- Understanding the developmental patterns of permanent teeth in children with hypodontia is crucial for diagnosis and treatment planning.
Purpose of the Study:
- To compare the radiographic development of permanent teeth in children with hypodontia to that of a matched control group.
- To investigate the correlation between hypodontia severity and tooth development delay.
- To assess the impact of agenesis on the development of adjacent teeth.
Main Methods:
- Utilized dental panoramic tomographs to assess tooth formation using Haavikko's method.
- Employed paired t-tests and Spearman correlation tests to analyze age differences and severity correlations.
- Applied Wilcoxon sign tests to evaluate the development of teeth adjacent to agenesis sites.
Main Results:
- Tooth formation was significantly delayed in children with hypodontia (p<0.001), with a mean delay of 1.51 years.
- A greater severity of hypodontia correlated with a more pronounced developmental delay (p<0.01).
- Teeth adjacent to agenesis sites showed significantly delayed development compared to controls (p<0.01).
Conclusions:
- Permanent tooth development is demonstrably different in children with hypodontia compared to their non-affected peers.
- Radiographic assessment confirms delayed tooth formation and highlights the impact of agenesis on surrounding dental development.