Abstract :
Objective: To investigate the relationship between maxillary arch widths and various vertical facial patterns.
Methodology: Subjects of age ranging 17-30 years were reviewed having full complement of teeth with no tooth deformity or record of restoration or stripping. Exclusion criteria included dental anomalies, spacing or crowding (> 8 mm), previous dentoalveolar surgery, trauma or orthodontic treatment. Three hundred sixty subjects (180 Females, 180 Males), with skeletal
Class I relation, including 120 each for Normodivergent, Hypodivergent and Hyperdivergent facial patterns were selected. Maxillary intercanine, interpremolar, and intermolar widths were measured. Student’s two-tailed t-test was used to determine differences in measurements between male and female groups. Analysis of variance was used to determine whether interarch
width varies with different vertical facial patterns. Statistical differences were determined at the 95% confidence level (p, .05).
Results: The dental arch widths in males were significantly greater (p = 0.00 to 0.03) than those in females. An inverse relationship (Males p = 0.001 to 0.91) (Females p = 0.005 to 0.81) was found between vertical facial morphology and dental arch widths.
Conclusion: Since dental arch width is associated with gender and facial vertical morphology, using individualized arch wires according to patient’s pre-treatment arch form is suggested.
Keyword :
Transverse Arch Dimensions, Vertical Facial Patterns.