title: Determining tooth size ratio in an Iranian-Azari population.
abstract: OBJECTIVE
  The aim of this investigation was to determine the tooth size ratio in an Iranian-Azari population.
  
  
  METHODS
  The Bolton tooth size analysis was performed on a sample of 50 plaster models (25 male subjects, 25 female subjects) of Iranian-Azari subjects. The mesiodistal widths of all teeth were obtained and the Bolton anterior ratio and overall ratio were calculated. The mean, range, and standard deviation were calculated for the anterior and overall ratio, and a coefficient of variation was obtained for the tooth size ratio.
  
  
  RESULTS
  For the anterior ratio (3-3), the Iranian-Azari had a mean of 78.0 mm with a standard deviation of 3.1; the range was 73.68 to 84.6 mm. For the overall ratio (6-6), the mean was 92.0 mm with a standard deviation of 2.4; the range was 88.09 to 97.5 mm.
  
  
  CONCLUSIONS
  The results from the Iranian-Azari subjects in the study are similar to Bolton's original data for an American population. These values and the degree of variation were similar to the original data by Bolton, indicating the Bolton analysis for Caucasian samples can be transferred to an Iranian-Azari population. It also confirms no relevant sexual dimorphism exists, and these values are valid for both male and female subjects.
authors.affiliation: Department of Orthodontics, School of Dentistry, Tabriz Medical Sciences University, Tabriz, Iran. mirzakouchaki@tbzmed.ac.ir
authors.forename: Behnam
authors.initials: B
authors.lastname: Mirzakouchaki
authors.forename: Shirin
authors.initials: S
authors.lastname: Shahrbaf
authors.forename: Reza
authors.initials: R
authors.lastname: Talebiyan
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D009811:Odontometry; D012015:Reference Standards; D012016:Reference Values; D012727:Sex Characteristics; D014070:Tooth / Q000033:anatomy & histology*; D044465:White People