Dr. Peter Walker, who is completing a Master of Science in Craniofacial Science combined with a diploma in Prosthodontics at UBC, won first place in the American College of Prosthodontists (ACP) Postdoctoral (Resident) Competition. The competition was held during the College’s Annual Session held in San Diego, California, from October 5 to 8, 2016.
There were 120 posters—a record number according to the ACP—entered in the competition, highlighting the scholarly activity of residents and dental students from across the United States and Canada. The posters varied between presentations of research results, clinical outcomes, laboratory techniques, and more.
Winning selections in the American College of Prosthodontists poster competition are based on a combination of factors including the quality of research, how it is presented by the student during the poster session, and the knowledge of the student about the research topic. “I am proud of Peter’s achievement. It is well deserved!” says Dr. N. Dorin Ruse, Professor and Chair, Biomaterials, who is Walker’s graduate supervisor.
Walker’s poster, “‘CAD-on’ Crowns – A Fracture Mechanics Characterization,” presented the results of his study that aimed to determine the interfacial fracture toughness of the interfaces present in “CAD-on” crowns, bi-layered restorations composed of CAD/CAM processed lithium disilicate veneer fused with a connecting glass to CAD/CAM processed Y-TZP framework. The results obtained suggested that the interfacial fracture toughness of the interfaces tested is limited by the fracture toughness of the connecting glass.