PREVALENCIA DE LAS ALTERACIONES CROMATICAS EXTRINSECAS EN PIEZAS DENTARIAS Y SUS FACTORES ASOCIADOS EN LOS ESTUDIANTES DE LA UNIVERSIDAD DE CUENCA. 2017

Abstract

Objective: Determine the prevalence of extrinsic chromatic alterations in tooth and their associated factors. Methods: An observational, cross-sectional study was carried out on 545 students from the University of Cuenca who were selected for a sample of convenience, for which the survey was used by means of a form that was validated in a pilot test. The data were taken in class time of each faculty; the chromatic alterations were diagnosed by means of a spectrophotometer Vita Easyshade 4, and the independent variables by means of a survey. The data were analyzed by determining the frequencies and then associated with the dependent variable, using a chi-square test with 95% confidence. Results: 27.3% of students presented extrinsic chromatic alterations, which showed to be associated factors: presence of bacterial plaque (p <0.001); orthodontic appliances (p = 0.001) and dental caries (p = 0.006). Conclusions: Extrinsic chromatic alterations have a statistically significant association with bacterial plaque, dental calculus, caries, restorations, orthodontic appliances and fixed and removable prosthodontics.