Fracture resistance of endodontically treated maxillary premolars with Mesio-occluso-distal (MOD) cavities supported by horizontal glass fiber posts versus vertical glass fiber posts: An in vitro study

Aim: The aim of this study was to assess the fracture resistance endodontically treated maxillary premolars with mesioocclusodistal (MOD) cavities supported by horizontal glass fiber posts. Methodology: Thirty three extracted were collected and grouped into three. MOD prepared all them treated. Teeth posts; vertical posts composite restoration alone in groups respectively. Fracture assessed using Universal testing machine. Type visual examination. failure Stereomicroscope. Results: Highest shown samples post (Group C). Group B had higher chances 1 (Adhesive between luting cement) compared other groups. A 4 (Cohesive failure) C 5 failures (Mixed type; combination any two above-mentioned types).There no statistically significant association mode (repairable unrepairable). Majority from underwent repairable fractures. Conclusion: group significantly