References

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Smile analysis: what to measure

From Volume 41, Issue 6, July 2014 | Pages 483-489

Authors

Waeil Batwa

BDS, MSc, MOrth RCS(Eng), FFD Orth(RCSI)

Assistant Professor and Consultant Orthodontist, King Abdulaziz University, Faculty of Dentistry, Saudi Arabia

Articles by Waeil Batwa

Balpreet Grewal

BDS, IQE, MJDF

Honorary StR in Orthodontics, Barts and the Royal London Hospital, London

Articles by Balpreet Grewal

Daljit Gill

BDS(Hons), BSc(Hons), MSc, FDS RCS, MOrth RCS, FDS(Orth) RCS(Eng), FHEA

Locum Consultant Orthodontist, The Royal London, Oxford Radcliffeand Stoke Mandeville Hospitals

Articles by Daljit Gill

Abstract

Patients seek dental treatment to improve oral function as well as their attractiveness. In order to improve smile attractiveness, clinicians need to carry out a comprehensive smile assessment. The aim of this paper is to help clinicians to adopt a systematic approach toward smile assessment by introducing a smile assessment form.

Clinical Relevance: Smile analysis is an essential part of smile diagnosis. A smile assessment form will assist clinicians in identifying and recording smile features for diagnosis and treatment planning.

Article

The smile, which is often used to show pleasure and amusement, can be defined as the facial expression that is characterized by upward curving of the corners of the mouth.1 It is the second facial feature, after the eyes, that people tend to look at when evaluating the attractiveness and beauty of others,2 and it is equally important for both genders.3

Generally, there are two types of the smile, the posed and the spontaneous smile.3,4 The posed smile is a voluntary smile that is not elicited or accompanied by emotions; it is unstrained and static in the sense that it can be sustained with fairly reproducible lip animation.4 The reproducibility of the posed smile in natural head position makes it amenable to orthodontic treatment planning.3 The spontaneous smile is an involuntary smile with animated lip elevation induced by joy. It is dynamic in the sense that it bursts forth but is not sustained. It can be said that it expresses authentic human emotion.4

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