[The effect of surface etching on tensile strength].
The aim of this study was to investigate the effect of different partial size of corundum used by sand blasting on the surface roughness and on the tensile strength. The conclusions of the authors were as follows: 1. The maximum values of tensile strength were measured when 200-250 microns corundum was used. 2. The values of the R(a) and Rmax were grown proportionally with the grain of corundum, but it was not resulted in the same increase of the tensile strength. 3. After the tensile test the residue of the bonding agent on one surface of the test-piece pairs, always remained significantly higher, than on the other, but this phenomenon cannot be explained by the differences between R(a) and Rmax within the test-piece pairs.
Hegedüs
C
C
DOTE, Stomatologiai Klinika, Debrecen.
Borbély
J
J
Olveti
E
E
Varga
F
F
D000134:Acid Etching, Dental; D000537:Aluminum Oxide; D006801:Humans; D013499:Surface Properties; D013674:Technology, Dental; D013718:Tensile Strength
D000537:Aluminum Oxide
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