A reliable and reproducible method for repositioning 3D images to calculate changes in facial volume after orthognathic surgery.

Purpose: An accurate, reproducible method to calculate post-operative facial swelling in patients who have undergone orthognathic surgery is important to evaluate the effects of different therapies and surgical techniques on edema. The purpose of this study was to describe such a method and assess its reliability.

Materials And Methods: A prospective study of patients undergoing orthognathic surgery was conducted.

Self-reported temporomandibular joint disorder symptoms, oral health, and quality of life of children in kindergarten through grade 5: Do sex, race, and socioeconomic background matter?

Background: The authors' objectives were to determine the percentage of children in kindergarten through grade 5 who reported symptoms of temporomandibular joint disorder (TMJD); to assess whether sex, race, and socioeconomic background mattered; and to explore the relationships between TMJD and children's oral health and oral health-related quality of life (OHRQoL).

Methods: The research team conducted face-to-face interviews with 8,302 children in kindergarten through grade 5 (51% female, 49% male; 53% African American, 42% white). They conducted oral health screenings with 7,439 children.