Research Article
Volume 19 Issue 11 - 2020
Effect of Wear Behaviour of a Polymer-Infiltrated Ceramic Network Material and Lithium Disilicate in Micro-Hardness
Shaima B Ghazalh1*, Abrar A Abdrabuh1, Rima H Alawami1, Ameena T Banjar1, Dareen A Tumbukani1, Amal A Mohammed1, Kawthar A AlShaikh2 and Hanan M Alqatari3
1Faculty of Dentistry, Alfarabi Private College for Dentistry and Nursing, Jeddah, Saudi Arabia
2Faculty of Dentistry, Alfarabi Private College for Dentistry and Nursing, Riyadh, Saudi Arabia
3Faculty of Dentistry, University College Corck, Corck, Ireland
*Corresponding Author: Shaima B Ghazalh, Faculty of Dentistry, Alfarabi Private College for Dentistry and Nursing, Jeddah, Saudi Arabia.
Received: September 21, 2020; Published: September 12, 2020


Introduction: Ceramic materials exhibiting desirable mechanical and chemical properties are widely utilized in permanent dental restorations. Multiple considerations in selecting these materials are being made, such as wear behaviour and micro-hardness. The aim of this study was to examine the two-body wear behaviour and micro-hardness of two different ceramics, a polymer-infiltrated ceramic network (PICN) material and Lithium disilicate.

Methods: The two-body wear behaviour was probed in a chewing simulator (75000 cycles, 49 N and 60 cycle/min.). The samples were segregated into two groups based on the kind of material: every group consisting of 14 ceramic discs. Vicker hardness test was conducted to assess micro-hardness of the material prior and after the wear test. Results were subjected to analysis of variance (ANOVA) and then verified by unpaired t-test.

Results: Lithium disilicate had a higher mean of micro-hardness values than PICN after chewing simulation.

Conclusion: Micro-hardness changes in Lithium disilicate were found to have higher values than PICN.

Keywords: Chewing Simulator; Lithium Disilicate; Microhardness; Monolithic Ceramic; PICN; Two-Body Wear


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Citation: Shaima B Ghazalh., et al. “Effect of Wear Behaviour of a Polymer-Infiltrated Ceramic Network Material and Lithium Disilicate in Micro-Hardness”. EC Dental Science 19.11 (2020): 68-76.

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