The relationship between cranial base angle and malocclusion among kurdish adults in Sulaimani City : a lateral cephalometric study

الملخص EN

Background : The skeleto-dental components of Kurdish adults with class II / 1, class II / 2 and class III malocclusion were investigated and compared to those of Kurdish adults with normal class I occlusion using lateral cephalometric radiographs.

Materials and methods : The sample included 160 patients from Sulaimani city, 80 females and 80 males, divided into class I, classII / 1, class II / 2 and class III groups according to specific criteria.

Results : There were no significant genders differences for skeleto-dental angular measurements in normal class I and each of class II / 1, class II / 2 and class III malocclusion groups, but Kurdish males possessed significantly greater skeletal linear dimensions compared to Kurdish females.

The cranial base angles, N-S-Ar and N-S-Ba, were significantly increased in class II / 1 and class II / 2 patients and were decreased in class III patients.

The anterior cranial base length decreased only in class III malocclusion but the posterior cranial base lengths, S-Ar and S-Ba, were significantly increased in class II / 1 and class II / 2 and decreased in class III patients.

Conclusion : A relationship existed between cranial base angle, malocclusion type and facial features.