%0 Journal Article
%T Fracture resistance of teeth restored with different resin-based restorative systems
%A Kikuti
%A Willian Yoshio
%A Chaves
%A Fernanda Oliveira
%A Di Hip¨®lito
%A Vinicius
%A Rodrigues
%A Fl¨˘via Pires
%A D'Alpino
%A Paulo Henrique Perlatti
%J Brazilian Oral Research
%D 2012
%I Sociedade Brasileira de Pesquisa Odontol¨®gica
%R 10.1590/S1806-83242012005000004
%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_abstract&pid=S1806-83242012000300015&lng=en&nrm=iso&tlng=en