Hard- and soft-tissue contributions to the estheti...[Am J Orthod Dentofacial Orthop. 2008] - PubMed Result

Hard- and soft-tissue contributions to the estheti...[Am J Orthod Dentofacial Orthop. 2008] - PubMed Result: "Hard- and soft-tissue contributions to the esthetics of the posed smile in growing patients seeking orthodontic treatment.
McNamara L, McNamara JA Jr, Ackerman MB, Baccetti T.

Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI 48109-1078, USA. lmcnam@umich.edu

INTRODUCTION: The purpose of this investigation was to broaden the understanding of how various skeletal, dental, and soft-tissue relationships are related to the esthetics of the smile in patients with malocclusions before orthodontic treatment. METHODS: Images of the posed smile were captured from digital video clips of 60 growing patients (33 girls, 27 boys) seeking orthodontic treatment; they were judged by panels of laypersons and orthodontists. Discriminant analysis identified determinants of the 'pleasing smile' from the results of a visual analog scale. Quantitative measurements of the soft and hard tissues were made by using the smile images, cephalometric radiographs, and study models. The esthetics of the smile were correlated with specific skeletal, dental, and soft-tissue structures in the anteroposterior, vertical, and transverse dimensions (Pearson test"