RESUMEN

The aim of this study was to compare the shaping ability of three ProFile rotary instrumentation techniques and a conventional step-back method in simulated root canals. Prevalence of canal aberrations, change in working length, and preparation time were measured. A total of 48 composite images were made from pre- and postcanal scanned images using Corel Photopaint 8.0 and then the amount of coronal substance the instruments removed was also calculated two-dimensionally on digitized images with the Brain C software to compare the enlarging efficiency. There were no significant differences between the three rotary groups in preparation time, change in working length, and the incidence of aberrations (p > 0.05). The amount of coronal substance the instruments removed in the ProFile .04 taper group was significantly smaller than the other three groups (p < 0.05).

Asunto(s)

Carbono , Cavidad Pulpar/anatomía & histología , Modelos Anatómicos , Preparación del Conducto Radicular/instrumentación , Distribución de Chi-Cuadrado , Colorantes , Aleaciones Dentales , Diseño de Equipo , Humanos , Procesamiento de Imagen Asistido por Computador/métodos , Incidencia , Ensayo de Materiales , Níquel , Prevalencia , Pulpectomía/instrumentación , Resinas Sintéticas , Preparación del Conducto Radicular/métodos , Rotación , Programas Informáticos , Acero Inoxidable , Estadísticas no Paramétricas , Propiedades de Superficie , Factores de Tiempo , Titanio , Corona del Diente