Prediction on the chin advancement of the twin block functional appliance in growing Chinese patients using the cephalometric markers: a retrospective study.

In spite of the widespread use of functional appliances, broad variations were applied the treatment response. The aim of this study is to investigate the pre-treatment cephalometric predictors on the chin advancement of twin-block in growing Chinese patients with class II malocclusion. After screening, 90 patients treated by twin-block were included in the study.

The Psychosocial Impact of Dental Esthetics in Undergraduates with Borderline Malocclusion.

Background: The study investigates the existing correlation between self-perceived malocclusion, the psychosocial impact of dental esthetics, and whether this link involves personality traits.

Methods: The 179 questionnaires from 615 undergraduates in Wenzhou were used for analysis after applying the exclusion criteria. The Psychosocial Impact of the Dental Aesthetics Questionnaire (PIDAQ) was administered to evaluate participants' perceptions of the psychosocial impacts of malocclusion.

Preferences of color and lip position for facial attractiveness by laypersons and orthodontists.

Background: Previous studies have reported some evaluation methods about profiles, but so far, they have no consistent agreement on the esthetic profiles of color images. Thus, the aim of this study was to determine whether the judges have different preferences about the color of the photograph and lip position for esthetic profiles when comparing a Chinese boy and girl.

Methods: The photographic records of a Chinese boy and girl with a good balanced profile were randomly selected.

[Prediction and assessment of facial profile after bimaxillary orthognathic surgery in skeletal Class III malocclusion].

Purpose: To predict and assess the facial profile after bimaxillary orthognathic surgery in a patient model.

Methods: One patient with skeletal Class III malocclusion was selected. The orthognathic surgery design was simulated through Photoshop CS4 software.