Comparative evaluation of push-out bond strength of three retrograde filling materials in teeth with root apices resected at 90°: Mineral trioxide aggregate Angelus, Zirconomer, and Bioactive bone cement.

Background: Surgical endodontic dissatisfaction is frequently caused by an inadequate seal at the apex. The retrograde filling material utilized should prevent any contaminants from seeping into the periradicular tissue.

Aim: (1) To evaluate push-out bond strength of (MTA) Angelus, Zirconomer, and Bioactive bone cement as root-end filling material, (2) To compare push-out bond strength of three different retrograde filling materials with a universal testing machine.

A Breakthrough in the Era of Calcium Silicate-Based Cements: A Critical Review.

Calcium silicate-based cements (CSCs) or mineral trioxide aggregate (MTA) lookalike materials are blocks of cement or root canal sealers produced from calcium (Ca) and silicate. They have superior sealing ability, bioactivity, and marginal adaptability, making them appropriate for various dental treatment applications. Mineral trioxide aggregate is widely used in numerous endodontic repair techniques.

Comparative Evaluation of Dentinal Caries in Restored Cavity Prepared By Galvanic and Sintered Burs.

Background: The occurrence of secondary caries is the most common reason for the restorations failures.

Aim: The aim of the study was to evaluate and compare the anticaries effect of copper ions on the teeth restored with glass ionomer cement (GIC) and composite restorations in the cavity prepared by galvanic and sintered burs.

Materials And Methods: A total of 40 premolars were divided into two halves buccolingually.

Comparative study to evaluate shear bond strength of RMGIC to composite resin using different adhesive systems.

Aim: The aim of the study is to compare and evaluate the role of new dental adhesives to bond composite to the resinmodified glass inomer cement (RMGIC).

Materials And Methods: Thirty specimens were prepared on acrylic blocks, with wells prepared in it by drilling holes, to retain the RMGIC. The specimens were randomly divided into three groups of ten specimens each.

Accidental ingestion of endodontic file: a case report.

Ingestion of the endodontic instrument during root canal treatment is rare but can result in serious complications. The present paper reports a case in which endodontic file was accidentally swallowed by the patient undergoing root canal therapy, which entered digestive tract and passed uneventfully.

Apical extrusion of debris and irrigant using hand and rotary systems: A comparative study.

Aim: To evaluate and compare the amount of debris and irrigant extruded quantitatively by using two hand and rotary nickel-titanium (Ni-Ti) instrumentation techniques.

Materials And Methods: Eighty freshly extracted mandibular premolars having similar canal length and curvature were selected and mounted in a debris collection apparatus. After each instrument change, 1 ml of distilled water was used as an irrigant and the amount of irrigant extruded was measured using the Meyers and Montgomery method.