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The Effect of Thermo Cycling on Fracture Resistance Of Temporary Prosthesis Fabricated By CAD/CAM With Composite- Based Material | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 10, Issue 2, December 2022, Pages 222-229 PDF (459.97 K) | ||
| DOI: 10.25130/tjds.10.2.16 | ||
| Authors | ||
| Maab Qassim Hadi* ; Suha Fadhil Dulaimi | ||
| (1,2) Department of Prosthetic Dental Technology, College of Health and Medical Technology, Middle Technical University, Iraq. | ||
| Abstract | ||
| Aim: The objective of this study was to evaluate the effect of thermo cycling on fracture resistance of temporary prosthesis constriction by computer-aided design/ computer-aided manufacturing (CAD/CAM) with those of composite materials. Material and Methods: A dentoform maxillary molar tooth was prepared for full coverage crown, temporary prosthesis was constriction and divided into the following groups: CAD/CAM poly (methyl methacrylate) (PMMA) blocks, and auto- polymerizing temporary material. All specimens were subjected to thermo cycling and then fracture strength was measured by a universal testing machine. Results: The mean ± Stander deviation values for CAD CAM group before thermo cycling (560.50 ±83.581 Newton) and after thermo cycling (901.00± 311.598 Newton) were recorded statistically significant higher fracture resistance mean compared with composite fabricated interim restorations. Conclusion: Interim prosthesis constructed using CAD CAM technique showed higher fracture resistance and suitable for long-term clinical performance. | ||
| Keywords | ||
| CAD CAM interim restoration; fracture resista Keywords | ||
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