𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effect of the tooth microstructure on the shear bond strength of a dental composite

✍ Scribed by Panighi, M. ;G'Sell, C.

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
720 KB
Volume
27
Category
Article
ISSN
0021-9304

No coin nor oath required. For personal study only.

✦ Synopsis

Plane human enamel and dentin surfaces were used for microstructural investigation and shear bond testing. The dental tissue microstructure was characterized through the surface topology, the concentration in mineral elements (determined by electron microprobe analysis), and the Vickers microhardness for the same dental tissue. The etched prismatic enamel presents a surface roughness of about 200% of the apparent area, while the intertubular surface fraction of the dentin is, on the average, equal to 75%. The calcium concentration lies between 23.2 and 37.8% of the enamel total mineral content, and 18.5 and 28.2% of the dentin. The microhardness varies from 205 to 378 Hv for the enamel and from 37 to 98 Hv for the dentin. Also, the shear bond strength to a chemosetting adhesive/composite system varies from 10.4 to 23.9 MPa for the enamel and from 0.0 to 5.0 MPa for the dentin.

πŸ“œ SIMILAR VOLUMES

Effect of elapsed time following bleachi
Effect of elapsed time following bleaching on the shear bond strength of composite resin to enamel
✍ Nimet Unlu; Funda Kont Cobankara; Fusun Ozer πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 166 KB πŸ‘ 2 views

## Abstract The purpose of this study was to investigate the effect of post‐treatment time on the shear bond strength of composite resin to enamel after bleaching with 10% carbamide peroxide (CP) and 35% hydrogen peroxide (HP) bleaching systems. One hundred and thirty‐five flattened labial enamel s

Effect of Shear on the Strength of Polym
Effect of Shear on the Strength of Polymer-Induced Flocs
✍ Anthony Yeung; Andrea Gibbs; Robert Pelton πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 91 KB

Micromechanics was used to show that the rupture strength of polymer-induced flocs varied with the hydrodynamic conditions at which the flocs were formed. A maximum floc strength at an intermediate shear rate was observed. The overall performance of the polymeric flocculants, as determined by two in

Effect of surface treatment on the shear
Effect of surface treatment on the shear bond strength of three resin cements to a machinable feldspatic ceramic
✍ Sven M. Reich; Manfred Wichmann; Roland Frankenberger; Dorothea Zajc πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 185 KB πŸ‘ 2 views

## Abstract The aim of this study was to evaluate the shear bond strength of three resin cements to Vita Mark II ceramics under different pretreatments of the ceramic surface and to examine whether simplified pretreatment procedures would result in satisfying results compared to the state of the ar