Variations in crown shapes of maxillary central incisors

Glasnik Antropološkog Društva Srbije

Janošević Predrag¹  Tijanić Ljiljana²  Rusić-Tasić Vesna²  Stojanović Donka² 

[1] Univeristy of Niš, Faculty of Medicine, Niš, Serbia;University of Niš, Faculty of Medicine - Stomatology Clinics, Niš, Serbia;

关键词: maxillary central incisors;    crown shape;   

DOI  :  10.5937/gads1348081S

来源: DOAJ

【 摘 要 】

There are 3 types of crown shapes of the maxillary central incisors: type I-rectangular, type II-triangular and type III-oval. 250 study models of orthodontic patients of both sexes (125 males and 125 females) on the Dental Clinic in Nis were tested, with an attempt to determine the existence of variations in the crown shapes of maxillary central incisors. Gingival and incisal width and the crown height were measured by a digital nonius, as well as the proximal sides angle slope (Ø) according to Goose. Slightly more than a half of the examinees (52.40%) have a rectangular shape of the central incizor crown and a third (34%) has a triangular shape. Fewest examinees have an oval crown shape (13.60%). Similar distribution of crown shapes is found according to the examinees sex: a rectangular shape in 52% of boys and 52.80% of girls, a triangular shape in 36.80% of boys and 31.20% of girls and an oval shape in 11.20% of boys and 16% of girls. (Ø) angle is 7.56° in the total examinee sample, which coincides with the European population values. (Ø) angle is 6.95°in the triangular shape (6.51°in females and 7.39°in males); it is 8.20° in the oval shape (8.55° in females and 7.93° in males).

【 授权许可】

Unknown