Comparison of some physical and mechanical properties of CAD/CAM acrylic resins with heat-cured acrylic resins after exposure to artificial saliva (an in vitro study)
Abstract
The increase in water absorption of the acrylic dentures creates internal stress that eventually leads to the formation of cracks, which ultimately affects their mechanical properties, polymeric materials are generally stable structures with a high degree of resistance to biodegradation, however, several studies have shown that polymers biodegrade in the oral cavity. this study aims to compare the weight change (absorption and solubility) of CAD/CAM acrylic resin with conventional (heat cured) acrylic resin before and after immersion in artificial saliva (to simulate the oral cavity) in tow periods (one month, six months). the study sample included 32 samples of acrylic resin for both materials (16 conventional, 16 CAD/CAM), with dimensions of 20/20/1.5mm. the results of the statistical analysis of weight change (absorption and solubility) showed the lower means for CAD/CAM acrylic resin. we conclude within the limits of this study that the method of polymerization of CAD/CAM discs contributed to improved greater stability of weight over a period of one and six monthes of immersion in artificial saliva.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Health Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Health Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Health Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.