Smile line is one of the most important element of the smile esthetics. In an attractive smile, the maxillary anterior incisal curve is parallel to the lower lip. With the changes in face, lips and teeth muscles, which are caused by aging, this element (smile line) also changes. Aging causes smile line to move from its parallel position and in complete smile, formulate different shapes relative...

statement of the problem: in the evolution of orthodontics, the changes in soft tissue, especially smile line attracts considerable attention. purpose: the present study was carried out to evaluate the correlation of the smile line with the vertical parameters of anterior part of face. materials and methods: forty-six iranian adults, aged between 18-25 years were selected. five quantitative and...

background:   materials and methods:   determine possible significances in the relation of smile line to angle occlusion class, overbite and overjet and arch form. a p   results:   conclusion:   and important relation between some occlusal parameters and smile design, which must be considered. within the limitations of such studies, it might be concluded that there is a significant chi-square t...

Objective: Smile line is an inevitable element in esthetic dentistry; does the lip length have any correspondence to the smile line? Our study provides scientific data as part of an evidence-based assessment regarding the relationship between the upper lip length and smile line in a Malaysian population. Materials and Methods: A randomized sample, consisting of 238 Malaysian aged between 18 35 ...

OBJECTIVE To analyze differences in tooth display, lip-line height, and smile width between the posed smiling record, traditionally produced for orthodontic diagnosis, and the spontaneous (Duchenne) smile of joy. MATERIAL AND METHODS The faces of 122 male participants were each filmed during spontaneous and posed smiling. Spontaneous smiles were elicited through the participants watching a co...

Objective: A gummy smile or a high smile line may lead to a poor smile which can have impact on patient’s appearance and confidence. This case report summarizes the use of surgical lip repositioning technique for the management of a gummy smile. Clinical considerations: The procedure limits the muscle pull of the elevator muscles of the lip by shortening the vestibule, thus reducing the gingiva...

A patient’s smile expresses a feeling of joy, success, sensuality, affection and courtesy, and reveals self-confidence and kindness. A smile is more than a method of communicating, it is a means of socialization and attraction whose advantages are taken for granted in the media, both publicly and politically (Gandet, 1987). This media portrayal of the stereotyped smile leads to a standardizatio...

The aims of this study were to determine if there were any differences in the thickness of the lip levator musculature in men and women, and whether the height of the smile line in adults was related to the thickness of the lip levator musculature. Thirty Caucasian (13 males, 17 females), and 24 Asian (11 males, 13 females) undergraduate dental students participated in this study. The subjects ...

Background and Aim: The proportion of smile is a useful tool for creating geometric smiles which are a critical aspect in esthetic dentistry. The aim of this study was to determine the effect of lip line position on acceptable Recurring Esthetic Dental (RED) proportion among lay people. Materials and Methods: A photograph of pose smile of a young female was taken. The position of the lip was c...

If James Taylor had been an options trader, he might well have not written that second line. Options "smile" at traders, but smile is a source of happiness. It in fact considerable confusion and misunderstanding. In this paper, we explore how manifests the pattern different implied volatilities for on same stock, commonly known as volatility smile.