Efficacy of WaveOne Gold and ProDesign RT systems in removing filling material: a micro-CT analysis.

Unlabelled: The remaining filling material after retreatment can harbor bacteria and organic tissues that can influence the outcome of the therapy.

Aim: The aim of this study was to evalúate, by micro-CT, the amount of filling material remaining in the root canal after its removal using WaveOne Gold or ProDesign RT.

Material And Method: Forty human mandibular canines were instrumented with the ProTaper Next system up to the X2 instrument (25.

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.