TY  - JOUR
TI  - Shear Bond Strength of Veneer Composite to Cobalt-Chromium Alloys Fabricated Differently
AB  - Objective: The purpose of this study was to assess and compare the shear bond strength of a veneer composite resin bonded to cobalt-chromium (CoCr) dental alloys produced by different techniques.Material-Method: Ninety cylindrical specimens (10mm in diameter, 8mm in height) made of CoCr dental alloys were prepared by conventional casting technique (C), milling (M), LaserCUSING with and without annealing (CL+, CL), and direct metal laser sintering (DMLS) with and without annealing (EL+, EL). Veneer composite cylinders (5mm in diameter, 3mm in height) were built on metal specimens using a silicone jig. After storage in water for 24 hours, the specimens were assessed for bond strength with a shear force test at a crosshead speed of 0.5 mm/min. The shear bond strengths (SBSs) were statistically analyzed using the Kolmogorow-Smirnow test and Tukey-HSD multiple comparison test (α=.05).Results: When the SBS values of the groups were compared, significant differences were found among the groups (P<.05). While statistically significant differences were found between the CL+ group (9.36±2.62) and the M group (13.34±2.53) (P<.05), there were no significant differences among the others (P>.05). The debonded surfaces of the specimens exhibited mostly mixed type of failures.Conclusions: The CoCr alloy fabrication technique has an effect on the SBSs between the veneer composite resin and the metal used. LaserCUSING casting, a new technology, seems to have the lowest metal-resin bond strength among all the techniques tested.
AU  - Tulga, Ayça
DO  - 10.22312/sdusbed.290849
PY  - 2018
JO  - Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi
VL  - 9
IS  - 1
SN  - 2146-247X
SP  - 34
EP  - 39
DB  - TRDizin
UR  - http://search/yayin/detay/404273
ER  -