The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study
Aim: The study aims to assess the influence of hydrothermal aging on gradient zirconia's microstructure and color stability. Materials and methods: Ten discs were constructed from gradient zirconia blanks (3Y-TZP-5Y-TZP) using CAD\CAM technology. Hydrothermal aging was done in an autoclave. Col...
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| Format: | Article |
| Language: | English |
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Ain Shams University, Faculty of Dentistry
2024-03-01
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| Series: | Ain Shams Dental Journal |
| Subjects: | |
| Online Access: | https://asdj.journals.ekb.eg/article_346572_32d2a99654927c464888920a570af0ec.pdf |
| _version_ | 1797248023598727168 |
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| author | Mennat Allah Ramadan Hanaa Zaghloul Tamer Hamza |
| author_facet | Mennat Allah Ramadan Hanaa Zaghloul Tamer Hamza |
| author_sort | Mennat Allah Ramadan |
| collection | DOAJ |
| description | Aim: The study aims to assess the influence of hydrothermal aging on gradient zirconia's microstructure and color stability. Materials and methods: Ten discs were constructed from gradient zirconia blanks (3Y-TZP-5Y-TZP) using CAD\CAM technology. Hydrothermal aging was done in an autoclave. Color parameters (a*, b*, L*) for each disc was measured using a spectrophotometer. In order to investigate the zirconia specimens' crystalline structure, X-ray diffraction (XRD) was performed. Color stability and microstructural changes were examined before and after the aging process. Results: Following hydrothermal aging, a statistically significant decrease in the mean (L*) value was found. However, following hydrothermal aging, a statistically significant increase in the mean (a*) and (b*) values was reported. Regarding the microstructure, hydrothermal aging did not result in any significant changes. Conclusion: Artificial aging has led to color changes in gradient zirconia that were in the clinical acceptability range, but has no impact on the microstructure of gradient zirconia. |
| first_indexed | 2024-04-24T20:08:00Z |
| format | Article |
| id | doaj.art-a26489efa3404641b5303c85629b6a6e |
| institution | Directory Open Access Journal |
| issn | 1110-7642 2735-5039 |
| language | English |
| last_indexed | 2024-04-24T20:08:00Z |
| publishDate | 2024-03-01 |
| publisher | Ain Shams University, Faculty of Dentistry |
| record_format | Article |
| series | Ain Shams Dental Journal |
| spelling | doaj.art-a26489efa3404641b5303c85629b6a6e2024-03-23T22:27:16ZengAin Shams University, Faculty of DentistryAin Shams Dental Journal1110-76422735-50392024-03-0133110411310.21608/asdj.2024.264791.1203346572The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro StudyMennat Allah Ramadan0Hanaa Zaghloul1Tamer Hamza2Resident dentist at BUC, Cairo- Egypt.• Professor of Fixed Prosthodontics, Faculty of Oral and Dental medicine, Misr International University, Cairo-Egypt • Faculty of Dentistry-Noura Bint Abdel Rahman University, Riyadh-Saudi ArabiaDean Badr university in Cairo BUC, Professor of Fixed Prosthodontics Faculty of Oral and Dental medicine, Badr University, Cairo- Egypt.Aim: The study aims to assess the influence of hydrothermal aging on gradient zirconia's microstructure and color stability. Materials and methods: Ten discs were constructed from gradient zirconia blanks (3Y-TZP-5Y-TZP) using CAD\CAM technology. Hydrothermal aging was done in an autoclave. Color parameters (a*, b*, L*) for each disc was measured using a spectrophotometer. In order to investigate the zirconia specimens' crystalline structure, X-ray diffraction (XRD) was performed. Color stability and microstructural changes were examined before and after the aging process. Results: Following hydrothermal aging, a statistically significant decrease in the mean (L*) value was found. However, following hydrothermal aging, a statistically significant increase in the mean (a*) and (b*) values was reported. Regarding the microstructure, hydrothermal aging did not result in any significant changes. Conclusion: Artificial aging has led to color changes in gradient zirconia that were in the clinical acceptability range, but has no impact on the microstructure of gradient zirconia.https://asdj.journals.ekb.eg/article_346572_32d2a99654927c464888920a570af0ec.pdfartificial accelerated agingcolor stabilitygradient zirconiamicrostructuremonolithic restorations |
| spellingShingle | Mennat Allah Ramadan Hanaa Zaghloul Tamer Hamza The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study Ain Shams Dental Journal artificial accelerated aging color stability gradient zirconia microstructure monolithic restorations |
| title | The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study |
| title_full | The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study |
| title_fullStr | The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study |
| title_full_unstemmed | The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study |
| title_short | The Effect of Hydrothermal Aging on The Color Stability of Gradient Zirconia. In Vitro Study |
| title_sort | effect of hydrothermal aging on the color stability of gradient zirconia in vitro study |
| topic | artificial accelerated aging color stability gradient zirconia microstructure monolithic restorations |
| url | https://asdj.journals.ekb.eg/article_346572_32d2a99654927c464888920a570af0ec.pdf |
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