Unlabelled: An inflammatory radicular cyst (IRC) is an odontogenic cyst associated to a non-vital tooth, which may affect sound teeth. There is lack of consensus on whether to perform endodontic treatment on teeth involved in the extension of the lesion prior to surgical treatment.
Aim: To identify and quantify the therapies most often used on teeth with positive response to pulp tests that are involved in the extension of an IRC, and analyze the criteria upon which different authors based their decisions.
Purpose: To compare fiber posts of several calibers and trademarks to their corresponding root canal preparation drills.
Methods: Three widely used endodontic post brands and their drills were evaluated: Exacto, ParaPost Taper Lux, and Macro-Lock Illusion X-RO. Fiber posts and drills were microphotographed with a scanning electron microscope and images were analyzed using ImageJ image processing software.