Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2008  |  Volume : 11  |  Issue : 1  |  Page : 16-21

Evaluation of natural smile: Golden proportion, RED or Golden percentage


Department of Conservative Dentistry and Endodontics, MS Ramaiah Dental College, Bangalore, India

Correspondence Address:
Niketa Ramani
Department of Conservative Dentistry and Endodontics, Room No.3, M.S. Ramaiah Dental College, New BEL Road, Bangalore - 560054
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.43413

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Creating geometric or mathematical proportion to relate the successive width of maxillary anterior teeth is a critical aspect in Esthetic dentistry. Golden proportion, recurring esthetic dental (RED) proportion and golden percentage are new theories in this field. Aim: To investigate the existence and suitability of Golden proportion, Recurring Esthetic Dental, and Golden percentage between the widths of maxillary anterior teeth in individuals with natural dentition, with the aid of digital photographs and computer analysis. Material and Methods: Standardized frontal images of 56 dental students, 20 male and 36 female, were captured. Each maxillary anterior tooth was digitally measured. Once the measurements were recorded, the three theories were applied and the data was analyzed statistically. Results: The golden proportion was found to exist only in 14-25% of the subjects, between perceived maxillary anterior teeth in natural dentition. The value of RED proportion was not constant, and as one moved distally, this proportion gradually increased. Furthermore, the results revealed that golden percentage was rather constant in terms of relative tooth width. Central incisor represented 22%, lateral incisor 15% and canine 13% of the width of six maxillary anterior teeth, as viewed from the front. Conclusion: Both golden proportion and RED proportion are unsuitable methods to relate the successive width of the maxillary anterior teeth in natural dentition. However, the golden percentage theory can be applied if percentages are adjusted, taking into consideration the ethnicity of the population.


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