OBJECTIVE To define a threshold of acceptance of smile esthetics for children and adolescents. MATERIALS AND METHODS A systematic search in the medical literature (PubMed, PubMed Central, National Library of Medicine's Medline, Embase, Cochrane Central Register of Controlled Clinical Trials, Web of Knowledge, Scopus, Google Scholar, and LILACs) was performed to identify all peer-reviewed pape...

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.

The search for esthetic treatment has persisted in the routine of dental professionals. Following this trend, dental patients have sought treatment with the primary aim of improving smile esthetics. The aim of this article is to present a protocol to assess patient's smile: The 10 Commandments of smile esthetics.

BACKGROUND The paradigm shift from occlusion to esthetics places more emphasis on the subtle relationships among the teeth and the interplay with the soft tissues. The authors of this study quantified the ideal and maximum acceptable deviations for smile characteristics. METHODS The authors created a survey by using a digital image editing software package, which enabled raters to manipulate ...

Purpose. To compare the change of anterior corneal higher-order aberrations (HOAs) after laser in situ keratomileusis (LASIK), wavefront-guided LASIK with iris registration (WF-LASIK), femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK), and small incision lenticule extraction (SMILE). Methods. In a prospective study, 82 eyes underwent LASIK, 119 eyes underwent WF-LASIK, 88 eyes ...

PURPOSE To comparatively investigate the clinical outcomes, vector parameters, and corneal aberrations of small incision lenticule extraction (SMILE) with a triple centration technique and corneal wavefront-guided transepithelial photorefractive keratectomy (PRK) for the correction of high astigmatism. METHODS This retrospective, comparative case series study included 89 eyes (89 patients) th...

Ectasia After SMILE: Correct Interpretation of Biomechanical Hypothesis We read the case report by Mattila and Holopainen on bilateral ectasia after SMILE in the July 2016 issue with great interest.1 It is evident that preoperative examination with topography, tomography, and slit-lamp examination needs to be strictly followed by surgeons before small incision lenticule extraction (SMILE), LASI...

Our hectic and increasingly digital lives can have a negative effect on our health and well-being. Some authors have argued that we socialize less frequently with other people in person and that people feel increasingly lonely [1]. Loneliness has been shown to significantly affect health and wellbeing in a negative way. We designed a game, Smile Catcher, which encourages players to engage in in...

Inspired by recent advances in psychological studies on motion-based face perception, we examine in this paper, from the viewpoint of pattern recognition, the identity information behind a smile. A smile video database is collected, from which we compute dense optical flow fields and generate features by summing up the flow fields over time during the neutral-to-smile period. We investigate the...