Palatal asymmetry in cleft palate subjects

Area of Science:

• Craniofacial morphology
• Dental and oral surgery

Background:

• Cleft palate significantly impacts craniofacial development, affecting palatal shape and symmetry.
• Understanding these morphological differences is crucial for effective treatment planning and outcomes.

Purpose of the Study:

• To quantitatively assess palatal shape and symmetry in individuals with cleft palate using moiré contourography.
• To compare palatal morphology between cleft palate subjects and a control group.
• To investigate the influence of cleft type and other factors on palatal morphology.

Main Methods:

• Moiré contourography was employed to evaluate palatal shape and symmetry in 95 cleft palate subjects and 68 controls.
• Analysis of variance (ANOVA) assessed differences in palatal landmarks and angles between groups.
• Multiple regression analyses determined the effects of cleft type, gender, dentition stage, missing teeth, and cephalometric variables.

Main Results:

• Cleft palate subjects displayed significantly greater asymmetry in palatal shape and first maxillary molar position compared to controls.
• The palate was found to be shallower and its deepest point located more posteriorly in cleft palate individuals.
• Cleft type severity correlated with both anteroposterior and transverse positional variations in palatal morphology.

Conclusions:

• Individuals with cleft palate exhibit distinct and more pronounced palatal asymmetry and shape alterations than non-cleft individuals.
• Palatal morphology is significantly influenced by the type and severity of the cleft.
• These findings provide valuable insights for surgical correction and orthodontic management in cleft palate patients.