Color match and stability of single-shade resin-based composites before and after artificial aging.

Purpose: To evaluate the color match and stability of single-shade resin-based composites (RBCs) in Class V restorations before and after ultra-violet light artificial aging.

Methods: Acrylic resin teeth of A1 and A3 were randomly assigned into seven groups to be restored with single-shade RBCs and universal-shade RBCs, shades A1 and A3. Standardized Class V cavities were restored using RBC and underwent accelerated aging for 480 hours.

Fracture Resistance of Chairside CAD/CAM Lithium Disilicate Partial and Full Coverage Crowns and Veneers for Maxillary Canines.

Objective: This study aimed to assess the fracture resistance of chairside computer assisted design and computer assisted manufacturing (CAD-CAM) lithium disilicate partial and full-coverage crowns and veneers for maxillary canines.

Methods And Materials: Forty-eight restorations for maxillary right canines (12 per group) were designed as follows: (1) partial crown with finish line in the upper middle third; (2) partial crown with finish line in the lower middle third; (3) traditional labial veneer; and (4) traditional full-coverage crown. Restorations were fabricated out of lithium disilicate (Amber Mill, Hassbio) using a chairside CAD-CAM system (Cerec Dentsply Sirona).

Ensuring the Safety of Locally Sourced Alcohols for Hand Sanitizer Production During the SARS-CoV-2 Crisis: A Comprehensive Impurity Analysis.

Amid the early 2020 SARS-CoV-2 crisis, severe hand sanitizer shortages led to OMS local production recommendations, inviting a diverse array of alcohol producers to contribute. However, not all followed mandatory controls for API-grade alcohol. We conducted a study to ensure the safety of the received alcohols, focusing on methanol and acetaldehyde levels.

Aesthetic Clinical Case for Immediate Implant Therapy for Maxillary Central Incisor.

This case report features a female patient with the chief complaint of needing to replace an anterior crown. After a comprehensive oral assessment and cone beam computed tomography (CBCT) radiographic examination, it was determined that the crown on Tooth #9 was subgingivally fractured. The procedure involved atraumatic extraction of Tooth #9, followed by immediate implant placement.