Comparison of fracture resistance between immediate and delayed composite restorations with or without fiber after root canal treatment: a field-emission-gun scanning electron microscope study.

ABSTRACT:

Background

This study aimed to evaluate the fracture resistance of immediate and delayed restorations after root canal treatment (RCT).

Methods

Sixty human intact premolar teeth were used. Teeth were prepared disto-occlusally. After RCT, teeth were randomly divided into two groups according to restoration times (immediate or 3 months delayed). The three month delay was imitated by thermomechanical aging. Then, samples were divided into six subgroups (n = 10). While I (Composite resin), II (Flowable bulk-fill) and III (Ribbond+Flowable bulk-fill) were restored immediately, Groups IV, V and VI were restored with temporary filling material and stored in distilled. After subjected to thermo-cycling (2,500 cycles, 5-55 °C) and exposed to 60,000 cycles in a chewing simulato

SUBMITTER: Kaynar ZB 

PROVIDER: S-EPMC11869885 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature