Publications by authors named "Mohammad-Hosein Ahangar-Atashi"
Effect of chin position on natural head orientation reproducibility.
Med Oral Patol Oral Cir Bucal
May 2011
Background And Aims: Establishment of natural head position (NHP) in radiography or photography by estimation, which is called natural head orientation (NHO), has been recently advocated by various studies. This study aimed to determine the effect of chin position on the accuracy and reproducibility of NHO in a more realistic way.
Materials And Methods: NHP-based digital photographs of 33 adults with normal profile were modified using the computer software Supper-Goo and Photoshop technique to produce 99 profile images in three groups with normal, forward and backward chin positions.
Bolton's intermaxillary tooth size ratios among Iranian schoolchildren.
Med Oral Patol Oral Cir Bucal
July 2011
Objectives: The aims of the present study were to determine anterior and total tooth-width ratios in a representative Iranian sample in Tabriz city and compare them with the Bolton standards.
Study Design: A total of 54 Iranian schoolchildren (12-14 years old) in Tabriz were examined. Alginate impressions were taken for subjects and poured by the dental stone.