Depth of penetration of four resin sealers into radicular dentinal tubules: a confocal microscopic study.

Background: The aim of this in vitro study was to evaluate the depth of penetration of 4 different endodontic resin sealers into the radicular dentinal tubules with the aid of confocal microscopy.

Methods: Eighty single-rooted teeth were instrumented and divided into 4 groups composed of 20 teeth each. The samples were obturated with AH Plus, RealSeal, EndoRez, and RoekoSeal resin sealers, respectively.

Prevalence of radix entomolaris in mandibular permanent first molars: a study in a South Indian population.

Objective: Anatomical racial variations are an acknowledged characteristic in permanent molars. Generally, mandibular first molars have 2 roots; however, the presence of a third root, radix entomolaris (RE), is a major anatomic variant among many population groups. This study evaluated the prevalence of permanent mandibular first molars featuring a distolingual root in a South Indian population.

Endodontic management of a mandibular first molar with three distal canals confirmed with the aid of spiral computerized tomography: a case report.

Identification and treatment of extra canals is the cornerstone to successful endodontic practice. Over the years, many diagnostic aids have evolved to facilitate the clinician in detection of hidden canals and to familiarize with the internal radicular anatomy. This case report highlights the rare incidence of 3 canals in the distal root of a permanent mandibular first molar.