%0 Journal Article
%T Interfacial adaptation of an epoxy-resin sealer and a self-etch sealer to root canal dentin using the System B or the single cone technique
%A Cavenago
%A Bruno Cavalini
%A Duarte
%A Marco Antonio Hungaro
%A Ordinola-Zapata
%A Ronald
%A Marciano
%A Marina Ang¨¦lica
%A Carpio-Perochena
%A Aldo Enrique del
%A Bramante
%A Clovis Monteiro
%J Brazilian Dental Journal
%D 2012
%I Dental Foundation of Ribeir?o Preto
%R 10.1590/S0103-64402012000300004
%X the aim of this laboratory study was to compare the interfacial adaptation of an epoxy-resin and a self-etch sealer in mesial root canals of mandibular molars filled using the system-b/elements obturation unit. sixty mesial root canals of mandibular molars were prepared using the k3 rotary system up to 35.04 instrument and then filled with the aid of the system-b/elements obturation unit using either gutta-percha/thermaseal plus (n=15) or resilon/real seal se (n=15). the single cone technique using both materials was used as control. the sealers were stained with rhodamine b dye and the teeth were filled and sectioned at 2, 4 and 6 mm from the apex. the interfacial marginal adaptation of sealers was evaluated using confocal microscopy. statistical analyses were performed by the kruskall-wallis test (¦Á=0.05). in general, microscopic analysis showed a quite regular gap distribution pattern at sealer-dentin interfaces, mainly for the two groups filled with real seal se. this means that both nonbonding root-filling groups (thermaseal plus) showed significantly higher amount of gap-free regions regardless of the filling technique (p<0.05). better marginal adaptation was obtained with gutta-percha and epoxy resin-based sealer using either the system b or the single cone technique.
%K confocal laser scanning microscopy
%K dentin
%K root canal filling
%K gutta-percha
%K resilon.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-64402012000300004&lng=en&nrm=iso&tlng=en