Factors Affecting Smile Esthetics in Adults with Different Types of Growth Patterns.
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 8
Abstract
Introduction: Smile is one of the most essential human facial expressions. Earlier orthodontic treatment was only focused on teeth alignment, occlusal relationship and function. However, patients are more concerned about their facial esthetics. Most patients nowadays seek orthodontic treatment only for esthetic purposes. Therefore, it is important for an orthodontist to be able to assess smile esthetics in such patients. There have been numerous studies regarding smile esthetics, but there was lack of data on its effect on different growth patterns. Aim: To quantitatively assess the relationship between smile esthetics variables and different types of growth patterns. Method: Pretreatment frontal photographs of 60 adult patients were taken and divided into three groups according to the SN-MP angles, i.e. Horizontal growth, Average and Vertical growth pattern.The smile variables the arc ratio, number of maxillary teeth exposed, upper lip height, buccal corridor ratio, smile index, lower teeth exposure and interlabial gap were measured. ANOVA test was carried out to compare the smile variables of the three different groups. Results: Arch ratio: significantly more in vertical growth pattern when compared to average and horizontal growth pattern. Tooth number: the number of teeth exposed were significantly more in average when compared with horizontal and vertical growth pattern. Smile Index: Average growth pattern showed significantly lower smile index than vertical,while Horizontal showed greater smile index when compared with average as well as vertical growth patter).Interlabial gap: significantly greater in Average when compared to horizontal as well as vertical growth pattern. Conclusion:With change in growth pattern the smile parameters which showed significant changes are arch ratio, tooth number, smile index and interlabial gap. On comparing Average growth pattern with horizontal growth pattern, smile index was higher in average growth pattern while the numer of maxillary teeth exposed and interlabial gap are higher in horizontal growth pattern.On comparing Vertical growth pattern with average growth pattern, arch ratio and smile index are higher in vertical growth pattern while interlabial gap and tooth exposure are higher in average growth pattern. The smile index is higher in Horizontal growth pattern than in vertical growth pattern while the arch ratio is higher in vertical growth pattern than horizontal growth pattern.
Authors and Affiliations
Anuja Bhavsar, Amit Nehete, Nitin Gulve, Kunal Shah, Shivpriya Aher
Keywords
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- EP ID EP380823
- DOI 10.9790/0853-1708034450.
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