An international survey on the use of calcium silicate-based sealers in non-surgical endodontic treatment.

Objectives: To gain insight on the current clinical usage of bioceramic root canal sealers (BRCS) by general dental practitioners (GDPs) and endodontic practitioners (EPs) and to determine if BRCS clinical application is in accordance with the best available evidence.

Material And Methods: An online questionnaire of 18 questions addressing BRCS was proposed to 2335 dentists via a web-based educational forum. Participants were asked about socio-demographic data, clinical practice with BRCS, and their motivation for using BRCS.

Do cell phones affect establishing electronic working length?

Introduction: Patients often keep their cell phones on and nearby during root canal therapy. Cell phones release electromagnetic interference, which might disturb electronic working length measurements. The purpose of this ex vivo study was to determine the effect of a cell phone (Apple iPhone 5 [Apple, Cupertino, CA] or KP100 [LG, Seoul, Korea]) placed into direct contact with an electronic apex locator (EAL) (Dentaport Root ZX module [J Morita Corp, Tokyo, Japan] or Propex II [Dentsply Maillefer, Ballaigues, Switzerland]) on working length determination.

Antibacterial efficiency of passive ultrasonic versus sonic irrigation. Ultrasonic root canal irrigation.

Objectives: To compare the antibacterial effect of the passive ultrasonic to passive sonic irrigation with a 5.25% NaOCI solution.

Methods: Sixty human teeth were used.

Influence of acid etching on hydrogen peroxide diffusion through human dentin.

Purpose: To evaluate the influence of dentin etching with phosphoric acid on hydrogen peroxide diffusion through human dentin in internal bleaching.

Methods: 46 human premolars were extracted for orthodontic reasons from adolescents. The teeth were endodontically treated and a flat defect was created at the enamel-cementum junction.

Biological properties of a neutralized 2.5% sodium hypochlorite solution.

Objectives: The objective of this study was to evaluate the influence of neutralizing a 2.5% NaOCl solution on its cytotoxicity, genotoxicity, and tissue-dissolving potential.

Study Design: The cytotoxicity and the genotoxicity of Dakin, a 2.