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Variability in permanent tooth emergence sequences in Flemish children
Roos Leroy1, Silvia Cecere, Emmanuel Lesaffre
1School of Dentistry, Oral Pathology and Maxillofacial Surgery, Catholic University Leuven, Leuven, Belgium. roos.leroy@med.kuleuven.be
European Journal of Oral Sciences
|January 12, 2008
Summary
Permanent tooth emergence sequences show significant variability in Flemish children. Relying on average sequences can be misleading due to the wide range of observed patterns.
Area of Science:
- Dentistry
- Pediatric Oral Health
- Biostatistics
Background:
- Understanding permanent tooth emergence sequences is crucial for monitoring child development and identifying potential dental anomalies.
- Previous studies often presented simplified or averaged emergence sequences, potentially overlooking significant individual variations.
Purpose of the Study:
- To investigate the variability in permanent tooth emergence sequences in Flemish children.
- To determine the prevalence of different emergence sequences within quadrants of the maxilla and mandible.
Main Methods:
- Utilized data from the Signal-Tandmobiel project, a 6-year prospective longitudinal oral health screening survey in Belgium.
- Employed Bayesian statistical analyses to account for the interval-censored nature of the tooth emergence data.
Main Results:
- No single permanent tooth emergence sequence was found in more than 19% of children within a quadrant.
- Considering sequences with at least 1% prevalence, 21 variations were identified in the maxilla and 15-22 in the mandible.
- These variations accounted for 84-88% of all observed emergence sequences, highlighting substantial diversity.
Conclusions:
- Permanent tooth emergence sequences are highly variable in Flemish children, challenging the utility of single-sequence models.
- Presenting tooth emergence solely based on means or medians is potentially misleading and does not capture the full spectrum of developmental patterns.
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