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Project information

Wear analysis of the rotary instruments used in endodontics

J.R. Jiménez-Octavio J.C. del Real-Romero J.M. Asensio-Gil

November 2018 - November 2019

Funding entity Universidad Complutense de Madrid


The overall objective of this collaboration focuses on the experimental analysis of the wear of rotary instruments, commonly called files, applied to the machining of dental canals. The endodontic treatment includes among its main phases the aforementioned perforation of the dentine, necessary for the subsequent irrigation of the pulp canals of teeth infected with sodium hypochlorite in low concentration to clean bacteria and other detritus inside such pieces.

The goal of the analysis will be to evaluate the resistance to cyclic fatigue and the wear caused in different rotary instruments, as well as the influence of the working temperatures reached in the machining process. For this purpose, experimental measurements of three-dimensional profilometry, differential scanning calorimetry and X-ray crystallography among others will be used. This study will require the use of the own equipment of the Chemistry and Materials Laboratories, as well as the subcontracting of other measurements to specialized research centers. Thus, conclusions can be obtained concerning the typology and materials used in the design of the machining instruments as well as possible indicators for their optimal redesign.


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