Simulation of the effect of dental modifications on facial soft tissues: a 3D stereophotogrammetric study

• DOI: 10.13128/ijae-8801
• Publication Date: 2010-11-11
• Authors: Márcio de Menezes; Alberto Rossetti; Ana Maria Bettoni; Giuseppe Lanza; Gianluigi Lodetti; Chiarella Sforza
• Keywords: Landmark; Position (finance); Dental arch; 3d model

Several dental treatments can change position, and modify lip support in the space. Current methods do not allow a non-invasive quantitative assessment of 3D dimensions no simulations treatment effects be made. In current study we devised method for detection dentolabial positions during simulated orthodontic prosthetic treatments. The arches 10 adult healthy subjects were reproduced with stone models, 1and 2-mm thick resin blocks modeled on maxillary frontal teeth (from canine to canine) simulate or treatment. facial soft tissues closed mouth obtained using stereophotogrammetric imaging system (Vectra-3D, Canfield Scientific, Inc., Fairfield, NJ, USA), without/ two thicknesses. relevant faces superimposed, spatial displacements selected landmarks thicknesses calculated. Additionally, upper lower labial areas individualized, global distances thickness obtained. Average ranged from 0.39 (sn landmark 1-mm thickness) 1.62 mm (left side ch thickness). On average, cph had largest displacements. all occasions, larger movements thickness, but difference was significant only ls (p<.05). area average anterior 0.28 (1-mm 0.5 (2-mm thickness; p=.007), while posterior 6 4 conclusion, allowed effect without submitting invasive dangerous examinations. could usefully employed planning children adolescents, as well oral rehabilitation adults.