Comparison of reverse torque values of abutment screws with the application of oil-based and water-based antibacterial agents.

Background: Using antibacterial agents to remove the foul odor of the implant cavity and prevent peri-implantitis can affect the detorque values and lead to the loosening of the abutment screw. This study investigated the effects of tetracycline and chlorhexidine gel on detorque values.

Methods: This in vitro study was carried out on three groups of five implants.

Effect of photodynamic therapy as an adjunctive to mechanical debridement on the nonsurgical treatment of peri-implant mucositis: A randomized controlled clinical trial.

Background: The use of photodynamic therapy (PDT) has been evaluated as an adjunctive technique for bacterial decontamination of implants with peri-implantitis. Given the controversies over the efficacy of the application of PDT to treat peri-implant diseases, the present clinical study aimed to evaluate the posttherapeutic clinical parameters and cytokine levels in peri-implant crevicular fluid in patients with peri-implant mucosal inflammation, receiving mechanical debridement (MD) alone or in association with PDT.

Materials And Methods: In this double-blinded randomized clinical trial, 52 patients with peri-implant mucosal inflammation were selected and they were randomly assigned to 2 treatment groups: a MD group and an MD + PDT group using an 805 nm laser and indocyanine green (ICG).

Evaluation of antibacterial and antifungal properties of a tissue conditioner used in complete dentures after incorporation of ZnO‒Ag nanoparticles.

. Incorporation of antifungal and antimicrobial agents into tissue conditioners might inhibit the formation of microbial plaque and prevent complications such as denture stomatitis. The present study was carried out to evaluate the antibacterial and antifungal properties of a tissue conditioner after incorporation of ZnO‒Ag nanoparticles into their structure.

Antibacterial and antifungal effects of chitosan nanoparticles on tissue conditioners of complete dentures.

Introduction: One of the most serious problems in dentistry is the growth of bacteria and fungi on complete dentures. The growth in question takes place on the surface of the elastic liners of their tissue conditioners. However, this problem can be solved by adding nanoparticles with antibacterial and antifungal properties to the tissue conditioners.

The Relationship between Behavioral Activation/Inhibition Systems (BAS/BIS) and Bullying/ Victimization Behaviors among Male Adolescents.

Objective: This research was conducted to investigate the relationship between behavioral activation-inhibition systems and bullying-victimization behaviors among adolescents.

Method: This was a correlational and cross-sectional study. Two hundred and thirty school boys were selected randomly by multistage cluster sampling method, and participated in this research.