Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces
The long-term clinical success of indirect restorations highly depends on their marginal integrity. The cement space is an element that might affect the marginal integrity, but it can be altered during the configuring of the computer-assisted designing/computer-aided manufacturing (CAD–CAM) restorat...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2023/6698453 |
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| author | Turki Alkhallagi Meshari Alzahrani Majed Ali Alkathiri Ghadeer I. Basunbul Amin Marghalani |
| author_facet | Turki Alkhallagi Meshari Alzahrani Majed Ali Alkathiri Ghadeer I. Basunbul Amin Marghalani |
| author_sort | Turki Alkhallagi |
| collection | DOAJ |
| description | The long-term clinical success of indirect restorations highly depends on their marginal integrity. The cement space is an element that might affect the marginal integrity, but it can be altered during the configuring of the computer-assisted designing/computer-aided manufacturing (CAD–CAM) restoration. However, there is controversy in the literature regarding the effect of the cement space on the precision of zirconia crown marginal adaptation. The aim of this study was to measure the vertical marginal discrepancies between different cement thickness settings for CAD–CAM monolithic zirconia restorations. Material and Methods. An artificial mandibular right molar tooth mounted on a typodont was prepared for a zirconia crown using the standard method. The study sample consisted of 30 zirconia crowns (Zenostar Zr Translucent Zirconia, Weiland Dental, Germany) milled using an (iMes-iCore) milling machine. Each group of 10 crowns was designed with 30–50 and 70 μm spacer thicknesses. The vertical marginal adaptation at the center of the four different planes (mesial, distal, buccal, and palatal) was measured under a microscope at 40x magnification. A one-way analysis of variance test was used for statistical analysis. Results. The mean of Group 30 was 27.45; of Group 50 was 22.22; and of Group 70 was 22.90. There was no statistically significant difference between the groups (p≥0.5). Conclusions. The increase in the cement space up to 70 μm did not influence the vertical marginal adaptation of the monolithic zirconia crowns. |
| format | Article |
| id | doaj-art-6859522c29254449894d9594793af073 |
| institution | Kabale University |
| issn | 1687-8736 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-6859522c29254449894d9594793af0732025-02-03T06:47:29ZengWileyInternational Journal of Dentistry1687-87362023-01-01202310.1155/2023/6698453Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement SpacesTurki Alkhallagi0Meshari Alzahrani1Majed Ali Alkathiri2Ghadeer I. Basunbul3Amin Marghalani4Oral and Maxillofacial Prosthodontics DepartmentOral and Maxillofacial Prosthodontics DepartmentOral and Maxillofacial Prosthodontics DepartmentOral and Maxillofacial Prosthodontics DepartmentDepartment of Oral and Maxillofacial SurgeryThe long-term clinical success of indirect restorations highly depends on their marginal integrity. The cement space is an element that might affect the marginal integrity, but it can be altered during the configuring of the computer-assisted designing/computer-aided manufacturing (CAD–CAM) restoration. However, there is controversy in the literature regarding the effect of the cement space on the precision of zirconia crown marginal adaptation. The aim of this study was to measure the vertical marginal discrepancies between different cement thickness settings for CAD–CAM monolithic zirconia restorations. Material and Methods. An artificial mandibular right molar tooth mounted on a typodont was prepared for a zirconia crown using the standard method. The study sample consisted of 30 zirconia crowns (Zenostar Zr Translucent Zirconia, Weiland Dental, Germany) milled using an (iMes-iCore) milling machine. Each group of 10 crowns was designed with 30–50 and 70 μm spacer thicknesses. The vertical marginal adaptation at the center of the four different planes (mesial, distal, buccal, and palatal) was measured under a microscope at 40x magnification. A one-way analysis of variance test was used for statistical analysis. Results. The mean of Group 30 was 27.45; of Group 50 was 22.22; and of Group 70 was 22.90. There was no statistically significant difference between the groups (p≥0.5). Conclusions. The increase in the cement space up to 70 μm did not influence the vertical marginal adaptation of the monolithic zirconia crowns.http://dx.doi.org/10.1155/2023/6698453 |
| spellingShingle | Turki Alkhallagi Meshari Alzahrani Majed Ali Alkathiri Ghadeer I. Basunbul Amin Marghalani Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces International Journal of Dentistry |
| title | Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces |
| title_full | Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces |
| title_fullStr | Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces |
| title_full_unstemmed | Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces |
| title_short | Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces |
| title_sort | vertical marginal discrepancy of a monolithic zirconia crown with different cement spaces |
| url | http://dx.doi.org/10.1155/2023/6698453 |
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