Objective smile analysis and its relationship with the lip length in an Indian population–An institution based study
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2019, Vol 18, Issue 2
Abstract
A smile is an integral part of the face and plays a definitive role in defining the facial aesthetics. An interdisciplinary approach including periodontal plastic procedures and orthodontic procedures are routinely performed to enhance aesthetics. Aim The aim of this study was the objective smile analysis based on the visibility of gingiva during natural smile and posed smile and the correlation of upper lip length with the smile line in patients visiting Government Dental College and Hospital, Mumbai. Materials and Methods The sample comprised of 150 participants (90 females, 60 males) between the age group of 18-25 years who were attending the outpatient department of Government Dental College and Hospital, Mumbai. Objective smile analysis was done with clinical photographs of the patients assessed by their natural and posed smile and analyzed according to Liebart’s classification. The Lip length was measured from Subnasale to Stomium superioris with the help of calibrated digital Vernier callipers in presence of two examiners to verify the authenticity of the readings. Data analysis was done by SPSS 20.0 software. Results There exists a statistically significant difference between classes of gingival smile line during Natural and Posed smile, with Low smile line being most common during Natural smile and Posed smile in general population. On comparison of Upper lip lengths at rest, Liebart’s Class 1, Class 2 and Class 3 and Class 4 displayed a statistically significant increasing order of lip length (p<0.05) suggesting that Very High smile line has the lowest upper lip length at rest and Low smile line having the highest lip length. However, no statistically significant difference was seen between the classes of gingival smile line in relation with upper lip length in posed smile (p>0.05). Conclusion This study has been an attempt to understand the dynamics of the smile line and it’s correlation with lip morphology in normal subjects.
Authors and Affiliations
Gulnar Dara Sethna, Harsh Mahesh Parmar, Rajesh Prabhakar Gaikwad, Dr. Surabhi Sanat Nabazza
Keywords
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- EP ID EP465020
- DOI 10.9790/0853-1802026775.
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