Fracture load and failure modes of endodontically treated molars with MOD cavities: Raw data.

Description

The study compared, in vitro, the effects of direct restorative techniques on the fracture load and failure mode of endodontically treated molars with MOD cavities. The research hypothesis was that restorative techniques would significantly influence the fracture load of the restored teeth. Ninety human third molars were randomized into nine groups (n = 10). G2–G9 received endodontic treatment and MOD preparation: G1, sound teeth; G2, unrestored; G3, moisture-activated material; G4, resin-modified glass ionomer cement (RMGIC); G5, conventional composite resin; G6, transfixed post with composite resin; G7, Interlig E-glass fiber positioned in the middle of the composite restoration; G8, Interlig E-glass fiber positioned on the cavity floor; and G9, short fiber–reinforced composite (SFRC). Specimens underwent 250,000 cycles (200 N, 1 Hz, water at 37 °C), followed by fracture load testing using a universal testing machine. Failures were classified as reparable or irreparable.

Steps to reproduce

Fracture load was measured using a universal testing machine. Failure modes were classified by visual inspection.

Institutions

• Pontifícia Universidade Católica do Rio Grande do Sul

  Rio Grande do Sul, Porto Alegre

Categories

Funders

• Coordenação de Aperfeicoamento de Pessoal de Nível Superior

  Ministry of Education

  Federal District, Brasília

Licence