Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics
This study aimed to measure the effect of storage environment on the hardness, surface roughness and wear ability of CAD/CAM resin-matrix ceramics. A total of 200 rectangular-shaped specimens were obtained by sectioning 5 CAD/CAM blocks; Crystal Ultra (CU), Vita Enamic (VE), Lava Ultimate (LU), Cera...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/17/6146 |
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| author | Wejdan S. Alghamdi Nawaf Labban Ahmed Maawadh Hussain D. Alsayed Huda Alshehri Ali Alrahlah Sarah M. Alnafaiy |
| author_facet | Wejdan S. Alghamdi Nawaf Labban Ahmed Maawadh Hussain D. Alsayed Huda Alshehri Ali Alrahlah Sarah M. Alnafaiy |
| author_sort | Wejdan S. Alghamdi |
| collection | DOAJ |
| description | This study aimed to measure the effect of storage environment on the hardness, surface roughness and wear ability of CAD/CAM resin-matrix ceramics. A total of 200 rectangular-shaped specimens were obtained by sectioning 5 CAD/CAM blocks; Crystal Ultra (CU), Vita Enamic (VE), Lava Ultimate (LU), Cerasmart (CS) and Vita blocks Mark II (MII). Microhardness and surface roughness were measured at baseline and after 7 days of immersion either in saliva or cola (n = 10). The wear ability of the CAD/CAM materials against steatite-ceramics antagonist was determined using a chewing simulator. The data were statistically analyzed using factorial ANOVA followed by post hoc Bonferroni multiple comparison tests (<i>p</i> < 0.05). The independent factors significantly influenced the microhardness and surface roughness (<i>p</i> < 0.05). The highest VHN was observed in MII at baseline (586.97 ± 13.95), while CU showed the lowest VHN after 7 days of immersion in cola (68.3 ± 1.89). On the contrary, the highest Ra was observed after 120,000 chewing cycles for the VE specimens (1.09 ± 0.43 µm) immersed in cola, while LU showed the lowest Ra at baseline (0.07 ± 0.01 µm). The highest % mass loss of the antagonist was observed with MII immersed in cola (1.801%), while CS demonstrated the lowest % mass loss of 0.004% and 0.007% in AS and cola, respectively. This study confirms that the surface properties of tested CAD/CAM materials are susceptible to degradation in an acidic environment except for hardness and wear of CS material. |
| first_indexed | 2024-03-10T01:34:31Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:34:31Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5d0ebee5e13f42eb80685795b5fed5a62023-11-23T13:36:25ZengMDPI AGMaterials1996-19442022-09-011517614610.3390/ma15176146Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix CeramicsWejdan S. Alghamdi0Nawaf Labban1Ahmed Maawadh2Hussain D. Alsayed3Huda Alshehri4Ali Alrahlah5Sarah M. Alnafaiy6Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Restorative Dental Sciences, Engineer Abdullah Bugshan Research Chair for Dental and Oral Rehabilitation, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaThis study aimed to measure the effect of storage environment on the hardness, surface roughness and wear ability of CAD/CAM resin-matrix ceramics. A total of 200 rectangular-shaped specimens were obtained by sectioning 5 CAD/CAM blocks; Crystal Ultra (CU), Vita Enamic (VE), Lava Ultimate (LU), Cerasmart (CS) and Vita blocks Mark II (MII). Microhardness and surface roughness were measured at baseline and after 7 days of immersion either in saliva or cola (n = 10). The wear ability of the CAD/CAM materials against steatite-ceramics antagonist was determined using a chewing simulator. The data were statistically analyzed using factorial ANOVA followed by post hoc Bonferroni multiple comparison tests (<i>p</i> < 0.05). The independent factors significantly influenced the microhardness and surface roughness (<i>p</i> < 0.05). The highest VHN was observed in MII at baseline (586.97 ± 13.95), while CU showed the lowest VHN after 7 days of immersion in cola (68.3 ± 1.89). On the contrary, the highest Ra was observed after 120,000 chewing cycles for the VE specimens (1.09 ± 0.43 µm) immersed in cola, while LU showed the lowest Ra at baseline (0.07 ± 0.01 µm). The highest % mass loss of the antagonist was observed with MII immersed in cola (1.801%), while CS demonstrated the lowest % mass loss of 0.004% and 0.007% in AS and cola, respectively. This study confirms that the surface properties of tested CAD/CAM materials are susceptible to degradation in an acidic environment except for hardness and wear of CS material.https://www.mdpi.com/1996-1944/15/17/6146CAD/CAM technologiesmicrohardnessresin ceramicssurface roughnesswear |
| spellingShingle | Wejdan S. Alghamdi Nawaf Labban Ahmed Maawadh Hussain D. Alsayed Huda Alshehri Ali Alrahlah Sarah M. Alnafaiy Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics Materials CAD/CAM technologies microhardness resin ceramics surface roughness wear |
| title | Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics |
| title_full | Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics |
| title_fullStr | Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics |
| title_full_unstemmed | Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics |
| title_short | Influence of Acidic Environment on the Hardness, Surface Roughness and Wear Ability of CAD/CAM Resin-Matrix Ceramics |
| title_sort | influence of acidic environment on the hardness surface roughness and wear ability of cad cam resin matrix ceramics |
| topic | CAD/CAM technologies microhardness resin ceramics surface roughness wear |
| url | https://www.mdpi.com/1996-1944/15/17/6146 |
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