On Monday, 16 February 2026, a master’s thesis entitled: “The Influence of Different Surface Treatments on the Shear Bond Strength and Microleakage of Heat-Cured Resin to 3D- Printed Co-Cr Alloy”, was defended at the Department of Dental Technology, College of Dentistry, University of Mosul.
The thesis, submitted by the student Luay Abdullah Khalaf, aimed to evaluate the effect of different surface treatment methods—namely sandblasting, acid etching, application of metal primer, and dual surface treatment—on shear bond strength, microleakage, and surface roughness at the interface between the three-dimensionally printed cobalt–chromium alloy and heat-cured acrylic resin.
The results revealed that the dual surface treatment (sandblasting combined with metal primer application) achieved the highest shear bond strength and the most effective interfacial sealing, thereby supporting its clinical application in the fabrication of removable partial dentures using three-dimensional printing technologies.
The examination committee was chaired by Assistant Professor Dr. Ibtihal Hazim Hassan, with the membership of Assistant Professor Dr. Mohammed Abdul-Latif Abdullah and Assistant Professor Dr. Rana Rabee Aziz, and under the supervision and membership of Assistant Professor Dr. Luma Mudhafar Anwar.
The thesis was accepted after the required revisions had been made.