The Open Dentistry Journal

ISSN: 1874-2106 ― Volume 14, 2020

Effect of Canine Dimensions on Smile Aesthetics among General Dentists, Dental Students and Laypersons

Amjad Al Taki1, *, Eyas Abuhijleh2
1 Private Practice, Department of Orthodontics, Smile Spa Dental Clinic, Dubai, UAE
2 Department of Orthodontics, University of Science and Technology of Fujiarah, UAE



Canines and their dimensions play a major role in the appearance of the smile. The aim of the study was to determine the perception of smile aesthetics among General dentists, Dental students, and laypersons, with respect to different levels of maxillary canine (canine tip height and gingival height in reference with central incisors) and Golden Proportions in regards to lateral incisor.

Materials and Methods:

This was a cross-sectional study conducted amongst three different populations; students of dentistry, general dentists and laypersons. A convenient sample size of 109 participants was accepted for the present study, out of which there were 41 students of dentistry, 38 general dentists and 30 laypersons. We used digitally altered photographs (n=15)for data collection.

Statistical analysis:

Kruskal Wallis Test was applied as a test of significance and the level of significance was set at <0.05.


The most of the dental students found the canine tip (-0.5), the gingival height of (+0.5) and the Golden Proportion 62% attractive. The majority of general dentists found the canine tip (-0.5), the gingival height of (+1) and the Golden Proportion 72% attractive. In comparison, laypersons found the canine tip (+0.5), the gingival height of (0) and the Golden Proportion 57% attractive.


The study demonstrated that the perceptions of dental students, general dentists and laypersons had a significant difference.

Keywords: Aesthetics, Canine Tooth, Perception, Smiling, Gingival height, Golden proportion.

Article Information

Identifiers and Pagination:

Year: 2020
Volume: 14
First Page: 275
Last Page: 280
Publisher Id: TODENTJ-14-275
DOI: 10.2174/1874210602014010275

Article History:

Received Date: 01/03/2020
Revision Received Date: 25/04/2020
Acceptance Date: 29/04/2020
Electronic publication date: 16/06/2020
Collection year: 2020

© 2020 Al Taki and Abuhijleh.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Private Practice, Department of Orthodontics, Smile Spa Dental Clinic, Dubai, UAE; E-mail:

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