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ORIGINAL STUDY COMPETITION
Year : 2018  |  Volume : 18  |  Issue : 5  |  Page : 26

OSC42: Influence of various surface treatments on the bond strength of ceramic veneered to digitized metal coping


Date of Web Publication31-Oct-2018

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-4052.244634

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How to cite this article:
. OSC42: Influence of various surface treatments on the bond strength of ceramic veneered to digitized metal coping. J Indian Prosthodont Soc 2018;18, Suppl S1:26

How to cite this URL:
. OSC42: Influence of various surface treatments on the bond strength of ceramic veneered to digitized metal coping. J Indian Prosthodont Soc [serial online] 2018 [cited 2018 Nov 20];18, Suppl S1:26. Available from: http://www.j-ips.org/text.asp?2018/18/5/26/244634



Vini Rajeev1, Rajeev Arunachalam1

1AIMST University, Faculty of Dentistry, Malaysia, 2Private Practitioner (Prosthodontist), India.

Aim: To relate the efficiency of different surface modification such as: sand blasting, acid etching, acid etching with sand blasting and laser ablation on the bond strength of ceramic veneered to Direct Metal Laser Sintered coping.

Materials and Methods: Fifty samples of Direct Metal Laser Sintered cylinders were made from Cobalt chromium super alloy using powder bed method. They were divided into five groups and were scrutinized via SEM after surface treatment. Shear bond strength test was accomplished using universal testing machine, where the samples were subjected to shear force at the alloy-ceramic interface at a crosshead speed of 0.5 mm/min. The outcomes were statistically evaluated by means of ANOVA Post hoc test followed by Duncan's t test and the mode of failure was studied via Scanning Electron Microscopy.

Results: The mean bond strength of sand blasted specimens (36.74±1.67MPa) was higher when matched to other groups trailed by laser ablation (33.09±1.37MPa). With the exception of the control and acid etch group, a mixed mode of failure was disclosed on exploration with SEM.

Conclusion: The bond strength of Direct Metal Laser Sintered Cobalt Chromium to ceramic pend on the surface roughness of the metal. The shear bond strength of sand blasted and laser ablated models were found to be uppermost and hence can be used as an approach in case of an efficacious digitized metal ceramic restoration.






 

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