Maxillary and mandibular dental arch forms in a Jordanian population with normal occlusion

• DOI: 10.1186/s12903-021-01461-y
• Publication Date: 2021-03-09T09:03:37Z
• Authors: M. Aljayousi; S. Al-Khateeb; S. Badran; E. S. Abu Alhaija
• Keywords: Dental arch; Mandible (arthropod mouthpart); Mandibular arch

Abstract Background Ethnic background has been claimed to affect arch form. The purpose of this study was describe and elucidate the maxillary mandibular forms in Jordanian population develop a classification method for these which could be employed construct orthodontic archwires accordingly. Methods sample comprised casts five hundred twenty subjects (231 males 289 females with mean age 15.4 ± 1.02 years). All had permanent dentition normal occlusion. A mathematical associated polynomial function 6th degree assess dental forms. resultant were classified into 5 groups both maxilla mandible utilizing computer software special code designed study. Each group subdivided 3 subgroup sizes namely: small, medium, large. Results Catenary form found 47% 41.2% ( p ˂ 0.01) forms, respectively. Form 2 (which is halfway between ellipse U-shaped form) 27.7% 26.7%. Medium size 55.4% 65.6% Conclusion most prevalent form, followed by wide elliptical other included tudor arch, tapered equilateral quadrangular less frequent. Regarding size, medium among studied samples.