A clinical and radiographic comparative evaluation of treatment outcome of different fiber post systems with conventional cast metal post and core system

Aim: To compare clinically and radiographically the treatment outcome of different post and core systems. Methodology: Patients with nonvital anterior teeth with middle or cervical third crown fracture and those fulfilling the inclusion and exclusion criteria were enrolled in the study. After clinical and radiological examination and confirmation of eligibility, the selected cases were randomly divided into three groups: Group A, cast metal post and core system (control group); Group B, glass fiber-reinforced resin post and core system (test group); and Group C, bundle glass fiber-reinforced resin post and core system (test group). Results: Group A (control group, cast metal post) provided the maximum number of failed cases with 1 sinus formation, 2 root fractures, 3 periapical pathology, 5 post adaptation failures, and 3 esthetic failures. In Group B (glass fiber post), there was 1 failed case due to debonding, 1 due to core fracture, and 3 were post adaptation failure. Minimum numbers of failures were seen in Group C (bundled glass fiber post) with only 1 post adaptation failure. Conclusion: The Bundle glass fiber reinforced resin post and core system can be a reliable alternative due to various advantages as - Can adapt any root canal morphology while preserving remaining dentine thickness - Provides homogenous reinforcement to the entire core buildup - Modulus of elasticity similar to that of dentin provides elevated shock resistance, shock absorption and prevents root fracture - Excellent esthetic property.