%0 Journal Article
%T Fracture resistance of teeth restored with different resin-based restorative systems
%A Willian Yoshio Kikuti
%A Fernanda Oliveira Chaves
%A Vinicius Di Hip¨®lito
%A Fl¨˘via Pires Rodrigues
%J Brazilian Oral Research
%D 2012
%I Sociedade Brasileira de Pesquisa Odontol¨®gica
%X The aim of the present study was to evaluate the fracture resistance of teeth restored with resin composite. Forty-eight maxillary premolar teeth were chosen and randomly divided to six groups: G1 (control): sound teeth; G2: MOD preparation, unrestored; G3: MOD + Adper Single Bond 2/P60; G4: MOD + Adper Easy One/P60; G5: MOD + P90 restorative system; G6: MOD + Adper Easy One/P90 Bond/P90. Specimens were subjected to compressive axial loading (0.5 mm/min). Flexural strength and the modulus of elasticity were also tested (n = 7). The only statistical equivalence with sound teeth was noted for G3 (p < 0.05). Flexural strength and the modulus of elasticity varied among the composites tested (n = 10). The reestablishment of the resistance to fracture in premolars subjected to Class II MOD preparations is restorative-system-dependent. The silorane restorative system is not able to recover the resistance to fracture.
%K Compressive Strength
%K Dentin-Bonding Agents
%K Dental Restoration
%K Permanent
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000300015