Computerized analysis of the instrumentation of the root canal system.

A method is proposed for a three-dimensional visualization of the root canal system before and after the cleaning and shaping procedure to analyze the relationships of the root canal walls. The first part of the study provided cross-sections of the root perpendicular to the root canal. A system for remounting the sections of the root before and after instrumentation was set up. Micrographs of the sections were transferred to a graphics computer which rebuilt and elaborated the sections, providing a three-dimensional model of the root with the image of the root canal system before and after instrumentation. This experimental computerized model enables sections of all kinds to be produced, with great possibilities for measurement and analysis.