RESEARCH ARTICLE


Dental-Facial Midline: An Esthetic Based Classification



Nischal Niraula1, 2
iD
, Reecha Acharya3, 4
iD
, Manoj Humagain1
iD
, Zohaib Khurshid5
iD
, Necdet Adanir6
iD
, Dinesh Rokaya*, 7
iD

1 Department of Periodontology and Implantology, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
2 Department of Public Health, Torrens University Australia, Sydney, Australia
3 Centre for Oral Health Outcomes & Research Translation, Campbell Street Liverpool, NSW 2170, Australia
4 Western Sydney University, School of Nursing and Midwifery, Rydalmere NSW 2116, Australia
5 Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
6 Department of Restorative Dentistry, College of Dentistry, King Faisal University, Al Ahsa, Saudi Arabia
7 Department of Clinical Dentistry, Walailak University International College of Dentistry, Walailak University, Bangkok, Thailand


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Creative Commons License
© 2021 Niraula et al.

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: https://creativecommons.org/licenses/by/4.0/legalcode. 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 Department of Clinical Dentistry, Walailak University International College of Dentistry, Walailak University, Bangkok 10400, Thailand; Tel: +66-22980244;
E-mail: dineshrokaya115@hotmail.com


Abstract

Background:

The facial midline and dental midline play an important role in facial esthetics, cosmetic dentistry, facial plastic surgery, and anthropologic studies.

Objective:

This study studied the dental-facial midline in Nepalese subjects and to classify the midline.

Methods:

The study was conducted in 150 Nepalese subjects, mostly consisting of University students (80 males and 70 females). After obtaining ethical approval, facial and dental midlines were analyzed using a scale.

Results:

It showed 26 (18%) study subjects showed the coincidence of the facial midline with the maxillary and mandibular dental midlines. It showed that only 44 (30%) subjects showed the coincidence of facial midline with only maxillary dental midline, and 26 (17%) subjects showed the facial midline coincidence with only mandibular dental midline. The dental midline discrepancy was more prevalent in the maxillary arch and more prevalent on the right side. Midline discrepancy is seen more in males compared to females. The majority of the deviation showed 1 mm, followed by 2 mm, and 3 mm.

Conclusion:

The coincidence of the facial midline with both the maxillary and mandibular dental midlines is uncommon. Midline discrepancy is seen more in males compared to females. The majority of the subjects show a mild discrepancy of 1 mm. The midline discrepancy was more seen on the right side and in the maxillary arch.

Keywords: Esthetics, Face, Midline, Dental, Asian, Nepalese.