Evaluation of Golden Proportion in Maxillary Anterior Teeth in Students of Mazandaran University of Medical Sciences in 2020 -2021

Kosar Dadgar; Mohammad Ebrahimisaravi; Tahereh Molania; Jamshid Yazdani Charati; Nadia Jafari

doi:10.18502/tbsrj.v4i1.8770

Kosar Dadgar Assistant Professor, Department of Prosthodontics, Dental Research Center, Mazandaran University of Medical Sciences, Sari, Iran 2 Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran
Mohammad Ebrahimisaravi Assistant Professor, Department of Prosthodontics, Dental Research Center, Mazandaran University of Medical Sciences, Sari, Iran 2 Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran
Tahereh Molania Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran
Jamshid Yazdani Charati Associate Professor, Department of Biostatistics, Health Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran
Nadia Jafari Dentistry Student, Student Research Committee, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran

DOI: https://doi.org/10.18502/tbsrj.v4i1.8770

Keywords: Dental esthetics, Golden ratio, Tooth crown

Abstract

Introduction: Some dentists use the golden ratio to balance the dimensions of the teeth and create a harmonious transverse ratio when reconstructing the maxillary anterior teeth. The aim of this study was to evaluate the presence of golden ratio in the visible width of maxillary anterior teeth in students of Mazandaran University of Medical Sciences.

Material and Methods: In this cross-sectional descriptive-analytical study, 100 students (average age of 22 years) were selected from Mazandaran University of Medical Sciences whose anterior maxillary teeth met the inclusion criteria. Photographs of the teeth in normal position of head and social smile were taken from a distance of 30 cm. The apparent width of teeth was measured with a digital ruler. Kolmogorov-Smirnov test was used to evaluate the normal distribution of data, independent t-test was used to compare the width of anterior teeth and t-1 test was used to evaluate the golden ratio in transverse ratio of teeth. Data were analyzed using SPSS 24 software.

Results: Measurements showed that the visible width of maxillary anterior teeth on the right and left as well as between men and women was not significantly different. Golden ratio was only established between the visible width of the right lateral to the right central teeth (P<0.05).

Conclusion: The golden ratio was not established between any of the teeth, except for the right central to the right lateral. Therefore, the golden ratio cannot be a permanent criterion for the reconstruction of maxillary anterior teeth.