title: Proportions of maxillary anterior teeth relative to each other and to golden standard in tabriz dental faculty students.
abstract: OBJECTIVE
  Various methods are used to measure the size and form of the teeth, including the golden pro-portion, and the width-to-length ratio of central teeth, referred to as the golden standard. The aim of this study was to eval-uate the occurrence of golden standard values and golden proportion in the anterior teeth.
  
  
  METHODS
  Photographs of 100 dentistry students (50 males and 50 females) were taken under standard conditions. The visible widths and lengths of maxillary right and left incisors were calculated and the ratios were compared with golden standard. Data was analyzed using SPSS 14 software.
  
  
  RESULTS
  Review of the results of the means showed statistically significant differences between the width ratio of right lateral teeth to the central teeth width with golden proportion (P<0.001). Likewise, the difference was significant for the left side, too (P<0.001). Test results of mean differences showed that the mean difference between proportion of right laterals to centrals with golden proportion was significant (P<0.001). The difference was significant for the left side, too (P<0.001). As a result, there is no golden proportion among maxillary incisors. The review of results of mean differences for single samples showed that the mean differences between the proportion of width-to-length of left and right central teeth was statistically significant by golden standard (P<0.001). Therefore, considering the width-to-length proportion of maxillary central teeth, no golden standard exists.
  
  
  CONCLUSIONS
  In the evaluation of the width-to-width and width-to-length proportions of maxillary incisors no golden proportions and standards were detected, respectively.
authors.affiliation: Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Fereydoun
authors.initials: F
authors.lastname: Parnia
authors.forename: Ali
authors.initials: A
authors.lastname: Hafezeqoran
authors.forename: Farhang
authors.initials: F
authors.lastname: Mahboub
authors.forename: Elnaz
authors.initials: E
authors.lastname: Moslehifard
authors.forename: Rodabeh
authors.initials: R
authors.lastname: Koodaryan
authors.forename: Rosa
authors.initials: R
authors.lastname: Moteyagheni
authors.forename: Fariba
authors.initials: F
authors.lastname: Saleh Saber