An up to thirty-year retrospective study on the success and survival of single unit and splinted implant-supported crowns in a dental school setting.

Statement Of Problem: Studies investigating the survival of implant-supported crowns provided in a dental school setting are sparse.

Purpose: The purpose of this retrospective study was to evaluate the success and reasons for failure of single unit and splinted implant-supported crowns provided in a dental school.

Material And Methods: Using the axiUm dental management software program and paper charts, all single unit and splinted implant-supported crowns provided between September 1989 and January 2020 were included for evaluation.

Effect of Different Post-Curing Methods on the Degree of Conversion of 3D-Printed Resin for Models in Dentistry.

The aim was to investigate the effects of different post-curing units on the chemical properties (degree of conversion) of 3D-printed resins for producing models in dentistry. The goal is to determine whether less-expensive post-curing units can be a viable alternative to the manufacturer's recommended units. Forty-five samples were fabricated with an LCD printer (Phrozen Sonic Mini, Phrozen 3D, Hsinchu City, Taiwan) using MSLA Dental Modeling Resin (Apply Lab Work, Torrance, CA, USA).

Twelve-year survival of 2-surface composite resin and amalgam premolar restorations placed by dental students.

Statement Of Problem: Composite resin and amalgam restorations are indicated for the restoration of posterior teeth. With increased esthetic demands, long-term clinical studies are required to evaluate the restorative success and reasons for failure of these materials.

Purpose: The purpose of this retrospective study was to determine the survival and reasons for failure of directly placed 2-surface composite resin restorations and directly placed 2-surface amalgam restorations on premolars placed by Canadian dental students.

Influence of irrigating solution on postoperative pain following single-visit endodontic treatment: randomized clinical trial.

Objective: To compare 2 irrigation solutions in terms of postoperative pain after single-visit treatment of chronic apical periodontitis with pulp necrosis.

Methods: A total of 126 patients requiring treatment of apical periodontitis and pulp necrosis were randomly assigned to 2 groups according to the solution used for irrigation: 5.25% sodium hypochlorite (NaOCl) or 2% chlorhexidine gel (CLX) (63 patients in each group).