Fahad F, Majeed MA. Fracture resistance of weakened premolars restored with sonically-activated composite, bulk-filled and incrementally-filled composites(A comparative in vitro study). J Bagh Coll Dent [Internet]. 2014 Dec. 15 [cited 2024 May 6];26(4):22-7. Available from: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/586