Unprepared areas and centralization of oval canals prepared with WaveOne Gold or XP-endo Shaper: microcomputed tomographic analyses.

Unlabelled: Current instrumentation systems cannot fully prepare oval root canal systems. This may cause accumulation of hard tissue debris and fail to eliminate bacteria from areas inaccessible to instrumentation, which could perpetuate periapical inflammation and jeopardize the success of endodontic treatment.

Aim: To evaluate the performance of two endodontic systems in oval canals by investigating the changes in volume, unprepared areas, and centering ability of XP-endo Shaper (XPS) and WaveOne Gold (WOG) in oval canals using microcomputed tomography (micro-CT).

Morphological assessment of the isthmus in mesial root canals of first mandibular molars.

Unlabelled: Root canal morphology and its anatomical variations pose a great challenge to endodontists.

Aim: The aim of this in silico study was to perform a qualitative and quantitative analysis of the threedimensional morphological characteristics of the isthmus in the mesial root canals of mandibular molars using microcomputed tomography (micro-CT).

Material And Method: Six hundred first mandibular molars were selected, including 317 with two mesial canals with isthmuses between the canals, and fully formed root.

Antibiotic indication in endodontics by Colombian dentists with different levels of training: a survey.

Aim: This study investigated how Colombian dentists with different academic levels indicate antibiotics with therapeutic purposes in endodontics.

Materials And Method: A cross-sectional survey was conducted among 559 dentists in the form of an online questionnaire.

Results: Three hundred and twenty questionnaires were answered (57.

Root canal morphology of 1316 premolars from Brazilian individuals: an in vivo analysis using cone-beam computed tomography.

The aim of this study was to investigate the internal root canal anatomy of maxillary and mandibular premolars in a Brazilian subpopulation, in order to establish the prevalence of the different configurations proposed by Vertucci. Three hundred and ninety-eight cone-beam computed tomography scans were collected from a private imaging clinic database in Rio de Janeiro, including 217 maxillary and 226 mandibular scans. A total 1316 premolars (594 maxillary and 722 mandibular) were evaluated using an image viewer, and classified according to Vertucci.

Micro-computed tomographic evaluation of root canal morphology in mandibular first premolars from a Colombian population.

Dental anatomy can vary significantly between different populations from different countries. Dental anatomical variations are of great interest to the dental professional, especially to endodontists, since they can influence the outcome of endodontic treatment. The purpose of the present study was to describe the anatomical variations of the root canal in mandibular first premolars in a population from Colombia, using micro-computed tomography.

Comparison of antibacterial activity of alexidine alone or as a final irrigant with sodium hypochlorite and chlorhexidine.

Aims: To compare the antibacterial activity of alexidine (ALX) alone or as a final irrigant in combination with sodium hypochlorite (NaOCl), with the most common canal irrigants, NaOCl and chlorhexidine (CHX).

Materials And Methods: Ninety-four root fragments from extracted human teeth were infected with for 24 h and then distributed into 4 groups of 20 fragments each. The NaOCl, CHX and ALX groups were immersed in 1 ml of 2.