The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials
The aim of this study is to assess the effect of different bleaching agents on microhardness and color of CAD/CAM ceramics including IPS e.max CAD (lithium disilicate), VITA ENAMIC (polymer-infiltrated ceramic), and Celtra Duo CAD (zirconia-reinforced lithium silicate). Materials’ samples were divid...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/17/5948 |
| _version_ | 1797494565739954176 |
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| author | Ruwaida Z. Alshali Mohammed A. Alqahtani |
| author_facet | Ruwaida Z. Alshali Mohammed A. Alqahtani |
| author_sort | Ruwaida Z. Alshali |
| collection | DOAJ |
| description | The aim of this study is to assess the effect of different bleaching agents on microhardness and color of CAD/CAM ceramics including IPS e.max CAD (lithium disilicate), VITA ENAMIC (polymer-infiltrated ceramic), and Celtra Duo CAD (zirconia-reinforced lithium silicate). Materials’ samples were divided into three groups (n = 10) and each received a different bleaching treatment; 20% carbamide peroxide, 35% carbamide peroxide, and 40% hydrogen peroxide. A fourth group was stored in water acting as a control. Vickers microhardness and spectrophotometric color measurements were taken at baseline and after bleaching. IPS e.max CAD showed a significant reduction (about 14%), while VITA ENAMIC showed a significant increase (about 78%) in microhardness after bleaching (<i>p</i> ˂ 0.001). Celtra Duo CAD did not demonstrate a significant change in microhardness (<i>p</i> ≥ 0.609). The color difference (ΔE<sub>ab</sub>) after bleaching was 0.29 (±0.08), 2.84 (±0.64), and 1.99 (±0.37) for IPS e.max CAD, VITA ENAMIC, and Celtra Duo CAD, respectively. It could be concluded that the effect of bleaching on color and microhardness was mainly material-dependent. Bleaching significantly affected the microhardness of IPS e.max CAD and VITA ENAMIC. The color difference was within the clinically imperceptible range for IPS e.max CAD, while VITA ENAMIC and Celtra Duo CAD demonstrated perceptible color change. |
| first_indexed | 2024-03-10T01:36:09Z |
| format | Article |
| id | doaj.art-16b1a6512d19449cacdc89c15f2f7b79 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:36:09Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-16b1a6512d19449cacdc89c15f2f7b792023-11-23T13:32:56ZengMDPI AGMaterials1996-19442022-08-011517594810.3390/ma15175948The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic MaterialsRuwaida Z. Alshali0Mohammed A. Alqahtani1Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi ArabiaProsthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaThe aim of this study is to assess the effect of different bleaching agents on microhardness and color of CAD/CAM ceramics including IPS e.max CAD (lithium disilicate), VITA ENAMIC (polymer-infiltrated ceramic), and Celtra Duo CAD (zirconia-reinforced lithium silicate). Materials’ samples were divided into three groups (n = 10) and each received a different bleaching treatment; 20% carbamide peroxide, 35% carbamide peroxide, and 40% hydrogen peroxide. A fourth group was stored in water acting as a control. Vickers microhardness and spectrophotometric color measurements were taken at baseline and after bleaching. IPS e.max CAD showed a significant reduction (about 14%), while VITA ENAMIC showed a significant increase (about 78%) in microhardness after bleaching (<i>p</i> ˂ 0.001). Celtra Duo CAD did not demonstrate a significant change in microhardness (<i>p</i> ≥ 0.609). The color difference (ΔE<sub>ab</sub>) after bleaching was 0.29 (±0.08), 2.84 (±0.64), and 1.99 (±0.37) for IPS e.max CAD, VITA ENAMIC, and Celtra Duo CAD, respectively. It could be concluded that the effect of bleaching on color and microhardness was mainly material-dependent. Bleaching significantly affected the microhardness of IPS e.max CAD and VITA ENAMIC. The color difference was within the clinically imperceptible range for IPS e.max CAD, while VITA ENAMIC and Celtra Duo CAD demonstrated perceptible color change.https://www.mdpi.com/1996-1944/15/17/5948bleachingmicrohardnesscolorceramicsCAD/CAM |
| spellingShingle | Ruwaida Z. Alshali Mohammed A. Alqahtani The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials Materials bleaching microhardness color ceramics CAD/CAM |
| title | The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials |
| title_full | The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials |
| title_fullStr | The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials |
| title_full_unstemmed | The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials |
| title_short | The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials |
| title_sort | effect of home and in office bleaching on microhardness and color of different cad cam ceramic materials |
| topic | bleaching microhardness color ceramics CAD/CAM |
| url | https://www.mdpi.com/1996-1944/15/17/5948 |
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