Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit
Purpose. The aim of the study was to measure the marginal and internal adaptation (MIA) of zirconia copings, made of 4 ceramic systems for CAD/CAM, using microcomputed tomography (micro-CT) technology. Material and Methods. Two identical stainless steel models were used, representing a preparation f...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2018/5189767 |
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| author | Rafaella Caramori Saab Leonardo Fernandes da Cunha Carla Castiglia Gonzaga Amanda Mahammad Mushashe Gisele Maria Correr |
| author_facet | Rafaella Caramori Saab Leonardo Fernandes da Cunha Carla Castiglia Gonzaga Amanda Mahammad Mushashe Gisele Maria Correr |
| author_sort | Rafaella Caramori Saab |
| collection | DOAJ |
| description | Purpose. The aim of the study was to measure the marginal and internal adaptation (MIA) of zirconia copings, made of 4 ceramic systems for CAD/CAM, using microcomputed tomography (micro-CT) technology. Material and Methods. Two identical stainless steel models were used, representing a preparation for full ceramic crown on a lower molar. The master models were then scanned for the production of copings from specific yttrium oxide partially stabilized tetragonal zirconia polycrystal ceramic blocks of each system (n=10): Cerec/inCoris Zi, Sirona; Cercon/Cercon base, Dentsply; Ceramill/Ceramill Zi, Amann Girrbach; and Lava/Lava Frame Zirconia, 3M ESPE. MIA was evaluated measuring 4 points as follows: marginal gap (MG), axial wall gap (AW), axio-occlusal angle gap (AO), and central occlusal area gap (CO). The data were statistically analyzed by ANOVA and Tukey’s test (α = 0.05). Results. The ceramic system Lava showed greater internal desadaptation (80.75 ± 22.69 µm) while CEREC presented the lowest values (49.92 ± 11.77 µm). There were significant differences between the measurement points evaluated. CO demonstrated the greater values (77.03 ± 22.61 µm). All marginal and internal adaptation values were considered clinically acceptable. Conclusion. It was concluded that there was an influence of the type of ceramic system in marginal and internal adaptation of copings in zirconia. |
| format | Article |
| id | doaj-art-7a7a738b2b604b909cad8b9a16cb0753 |
| institution | Kabale University |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-7a7a738b2b604b909cad8b9a16cb07532025-02-03T01:33:22ZengWileyInternational Journal of Dentistry1687-87281687-87362018-01-01201810.1155/2018/51897675189767Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal FitRafaella Caramori Saab0Leonardo Fernandes da Cunha1Carla Castiglia Gonzaga2Amanda Mahammad Mushashe3Gisele Maria Correr4DDS, Graduate Student of the School of Health Sciences, Universidade Positivo, Curitiba, PR, BrazilDDS, MSc, PhD, Professor of the School of Health Sciences, Universidade Positivo, Curitiba, PR, BrazilDDS, MSc, PhD, Professor of the School of Health Sciences, Universidade Positivo, Curitiba, PR, BrazilDDS, MSc, Graduate Student of the School of Health Sciences, Universidade Positivo, Curitiba, PR, BrazilDDS, MSc, PhD, Professor of the School of Health Sciences, Universidade Positivo, Curitiba, PR, BrazilPurpose. The aim of the study was to measure the marginal and internal adaptation (MIA) of zirconia copings, made of 4 ceramic systems for CAD/CAM, using microcomputed tomography (micro-CT) technology. Material and Methods. Two identical stainless steel models were used, representing a preparation for full ceramic crown on a lower molar. The master models were then scanned for the production of copings from specific yttrium oxide partially stabilized tetragonal zirconia polycrystal ceramic blocks of each system (n=10): Cerec/inCoris Zi, Sirona; Cercon/Cercon base, Dentsply; Ceramill/Ceramill Zi, Amann Girrbach; and Lava/Lava Frame Zirconia, 3M ESPE. MIA was evaluated measuring 4 points as follows: marginal gap (MG), axial wall gap (AW), axio-occlusal angle gap (AO), and central occlusal area gap (CO). The data were statistically analyzed by ANOVA and Tukey’s test (α = 0.05). Results. The ceramic system Lava showed greater internal desadaptation (80.75 ± 22.69 µm) while CEREC presented the lowest values (49.92 ± 11.77 µm). There were significant differences between the measurement points evaluated. CO demonstrated the greater values (77.03 ± 22.61 µm). All marginal and internal adaptation values were considered clinically acceptable. Conclusion. It was concluded that there was an influence of the type of ceramic system in marginal and internal adaptation of copings in zirconia.http://dx.doi.org/10.1155/2018/5189767 |
| spellingShingle | Rafaella Caramori Saab Leonardo Fernandes da Cunha Carla Castiglia Gonzaga Amanda Mahammad Mushashe Gisele Maria Correr Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit International Journal of Dentistry |
| title | Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit |
| title_full | Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit |
| title_fullStr | Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit |
| title_full_unstemmed | Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit |
| title_short | Micro-CT Analysis of Y-TZP Copings Made by Different CAD/CAM Systems: Marginal and Internal Fit |
| title_sort | micro ct analysis of y tzp copings made by different cad cam systems marginal and internal fit |
| url | http://dx.doi.org/10.1155/2018/5189767 |
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