Resistance of three new esthetic post-and-core systems to compressive loading.

Statement Of Problem: Despite their esthetic properties, the fracture resistance of newly introduced esthetic post-and-core systems has not been studied, restricting clinical use.

Purpose: The purpose of this study was to determine and compare the fracture resistances of 3 recently introduced esthetic post-and-core systems with a cast metal post and core using a clinically related test method.

Material And Methods: Forty recently extracted caries-free maxillary central incisors were selected, sectioned, and their roots endodontically treated.