The effect of composite fiber insertion along with low-shrinking composite resin on cuspal deflection of root-filled maxillary premolars.

Aim: The aim of the present study was to evaluate the effect of three methods of composite fiber placement along with siloranebased composite resin on cuspal deflection and fracture strength of root-filled maxillary premolars.

Materials And Methods: Mesio-occluso-distal cavities were prepared in 60 extracted premolars subsequent to endodontic treatment. The remaining thickness of buccal and lingual walls at height of contour was 2.