[The shearing strength with the silicoater procedure of conditioned bonded retaining elements].
The shear-bond strength of 120 sandblasted and silicoated metal elements (Wiron 88, Ni-Cr alloy) bonded with three different composites (ABC-cement, Superbond, Comspan opaque) to the plane of the prepared enamel surface of extracted teeth was measured. The effect of the interval between silicoating and bonding and that of 30 days' water storage was evaluated. The silicoating technique resulted in significantly higher bond strength than pure sandblasting, regardless of the composites used. After a one-day water storage the lowest bond strength was obtained with ABC-Cement and the highest with Superbond and Comspan opaque, independent of the interval between silicoating and bonding. After 30 days water storage elements bonded 30 min or 4 to 5 h after the silicoating procedure showed a loss of bond strength of an average of 25% regardless of the composites used. This decrease could not be measured with silicoated metal elements which were preserved by application of a bonding agent and bonded 24 h later.
Schäffer
H
H
Universitätsklinik für Zahn-, Mund- und Kieferheilkunde, Innsbruck.
D003722:Dental Alloys / Q000494:pharmacology; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements / Q000494:pharmacology; D003781:Denture Retention / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008422:Materials Testing / Q000379:methods; D012821:Silanes / Q000494:pharmacology*; D013314:Stress, Mechanical; D013997:Time Factors
D003722:Dental Alloys; D003738:Dental Cements; D012821:Silanes
Scherfestigkeit mit dem Silicoater-Verfahren konditionierter Adhäsivhalteelemente.