Objectives Today, creating a balanced and attractive smile is the main goal of treatment in modern orthodontics. The buccal corridor is one of the controversial aspects of the smile attractiveness. The aim of this study was to compare the impact of buccal corridor on smile attractiveness of women with Mesoprosopic, Leptoprosopic, and Euryprosopic face types, from the perspective of orthodontist...

background hyperactivity of depressor septi nasi muscle leads to smiling deformity and nasal tip depression. lateral fascicles of this muscle help in widening the nostrils. the purpose of this study was to evaluate the relationship between the nasal length changes and the alar base and the alar flaring changes during smile. methods standard photographs are performed in the face and lateral view...

SMILE (small heterodimer partner interacting leucine zipper protein) has been identified as a coregulator in ER signaling. In this study, we have examined the effects of SMILE on other NRs (nuclear receptors). SMILE inhibits GR, CAR and HNF4 alpha-mediated transactivation. Knockdown of SMILE gene expression increases the transactivation of the NRs. SMILE interacts with GR, CAR and HNF4 alpha in...

The purpose of this research was to quantify the visual display (presence) or lack of display (absence) of interdental papillae during maximum smiling in a patient population aged 10 to 89 years. Four hundred twenty digital single-lens reflex photographs of patients were taken and examined for the visual display of interdental papillae between the maxillary anterior teeth during maximum smiling...

OBJECTIVE To determine the effect of altered lip line on attractiveness and to find preferred lip line for vertical face types in both genders. STUDY DESIGN Cross-sectional analytical study. PLACE AND DURATION OF STUDY The Aga Khan University Hospital, Karachi, from May to July 2009. METHODOLOGY Photographs of two selected subjects were altered to produce three face types for the same ind...

objectives: this study aimed to assess and compare the perception of laypersons and dental professionals of smile esthetics based on two factors namely gingival display and alignment of teeth. materials and methods: a total of 32 females were randomly selected among dental students in the international campus of school of dentistry, tehran university of medical sciences (tehran, iran) with no p...

BACKGROUND To report our experience with small incision lenticule extraction ("SMILE") for myopia treatment. METHODS In this prospective clinical study, we evaluated 447 eyes from 224 patients with myopia, with and without astigmatism. We followed the patients for 6 months after SMILE. RESULTS The mean (±standard deviation, SD) spherical equivalent was -6.75 ± 1.65 diopters (D) preoperative...

Smiling during talking yields speech with higher formants, and hence larger formant dispersion. Previous studies have shown that motor resonance during perception of words related to smiling can activate muscles responsible for the smiling action. If word perception causes smiling activation for such smile-related words, then this motor resonance may occur also during production, resulting in l...