Cranial base growth in patients with Down syndrome: a longitudinal study
Juan J Alio1, Jose Lorenzo, Carmen Iglesias
1Prophylaxis, Odonthopediatrics and Orthodontics Department, Universidad Complutense de Madrid, Universidad Complutense de Madrid, Madrid, Spain.
Summary
Cranial base growth in individuals with Down syndrome (DS) from ages 8 to 18 mirrors that of controls. However, structural differences, including shorter and flatter bases, are present before age 8 in DS patients.
Area of Science:
- Orthodontics
- Pediatric Dentistry
- Craniofacial Biology
Background:
- Down syndrome (DS) is a genetic disorder often associated with craniofacial anomalies.
- Understanding cranial base development in DS is crucial for managing associated health issues.
Purpose of the Study:
- To evaluate cranial base growth patterns in patients with Down syndrome (DS) between 8 and 18 years of age.
- To compare cranial base morphology in DS patients with a non-DS control group.
Main Methods:
- A sample of 47 patients with DS and 38 controls underwent computerized cephalometric analysis.
- Subjects were categorized into prepubescent, pubescent, and postpubescent age groups.
- Statistical analysis included two-way and one-way ANOVA with Duncan's multiple range test.
Main Results:
- Cranial base growth from 8 to 18 years was comparable between DS patients and controls.
- Pre-existing structural differences in the cranial base were observed in DS patients before age 8.
- These differences included shorter and flatter anterior and posterior cranial bases.
Conclusions:
- While cranial base growth dynamics are similar post-puberty, early structural variations exist in Down syndrome.
- These findings highlight the importance of early detection and intervention for craniofacial development in DS.
- Further research into the etiology of these early structural differences is warranted.
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