The position of mandibular incisors in a sample of Iraqi adults with class i malocclusion

الملخص EN

Background: The attempt to make good diagnosis enforce the orthodontists to examine the relationship of the mandibular incisors position in patients with malocclusion to provide the practitioners with more diagnostic norms and correlation equation.

This study aimed to determine the position of the mandibular incisors in a sample of adults (aged 18-25 years) with Class I malocclusion, to determine the existence of gender differences in mandibular incisors position, and to determine the correlation between the mandibular incisors position with some measurements.

Materials and method: Lateral cephalometric radiographs were taken for 60 adults subjects (30 males and 30 females).

The cephalometric radiographs were traced and verified using AutoCAD 2008 program.

Results and Conclusions: The results show non-significant gender difference in the position of the mandibular incisors, and very high significant direct correlation between GoGn-NB angle and the V-NB.

The GoGn-NB angle can be classified as most important of the guiding angular variables in determining the lower incisors position (V -NB).