Effect of an Experimental Resin-based Sealer (Resil) and AH-26 on Postoperative Pain: A Randomized Controlled Clinical Trial.

Introduction: One of the most common problems in endodontic treatments is post-treatment pain, and sealers might be one of the factors influencing the degree of pain following root canal therapy. The purpose of this study is to compare pain following endodontic treatment using an AH-26 resin sealer against the Resil experimental sealer in mandibular molars with irreversible pulpitis.

Materials And Methods: One hundred patients with irreversible pulpitis in the mandibular first or second molar were randomly divided into two groups (=50) based on the type of sealer applied.

Evaluation of Antibacterial Effects of Cold Atmospheric Plasma, Calcium Hydroxide, and Triple Antibiotic Paste on Biofilm in the Root Canal System: An In Vitro Study.

One of the essential factors in successful endodontic therapy is the effective cleaning and disinfection of the root canal. This study aimed to determine the effect of cold plasma on infected root canals with and compare its antibacterial effect with the conventional medicaments in vitro. Sixty-tree single-root teeth were extracted.

The Effect of Low-Level Laser Therapy on the Viability of Human Dental Pulp Stem Cells.

This study assessed the effect of low-level laser (LLL) irradiation on the viability of dental pulp stem cells (DPSCs). In this in vitro experimental study, human DPSCs were purchased from the cell bank of Iranian Genetic Resources and cultured in flasks containing Dulbecco's modified Eagle's medium supplemented with 20% fetal bovine serum (FBS) at 37°C, 5% CO2, and 95% humidity. The cells were stored in semi-confluent form, and the culture medium was refreshed every two days.

Evaluation of Residual Debris and Smear layer After Root Canal Preparation by Three Different Methods: A Scanning Electron Microscopy Study.

Introduction: This study investigated the amount of debris and smear layer remaining followed chemomechanical preparation using three systems: ProTaper Universal, reciprocating SafeSider, and hand K-Flexofiles with scanning electron microscope (SEM).

Materials And Methods: Sixty-five mandibular molars with mesiobuccal canal curvature (25 to 40) were extracted and divided into one control group (=5), and three experimental groups (=20) according to the preparation method; K-Flexofile, ProTaper Universal and SafeSider instruments. All canals were irrigated with 3 ml of 5.