Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment
Zirconia is a well-known bioceramic for dental and orthopedic applications due to its mechanical and aesthetic properties. However, it lacks sufficient bioactivity to bond with the living bone. This study was aimed to induce bioactivity to tetragonal zirconia polycrystal (3Y-TZP) by simple biomimeti...
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MDPI AG
2020-07-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/14/3045 |
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| author | Hasnat Zamin Takeshi Yabutsuka Shigeomi Takai Hiroshi Sakaguchi |
| author_facet | Hasnat Zamin Takeshi Yabutsuka Shigeomi Takai Hiroshi Sakaguchi |
| author_sort | Hasnat Zamin |
| collection | DOAJ |
| description | Zirconia is a well-known bioceramic for dental and orthopedic applications due to its mechanical and aesthetic properties. However, it lacks sufficient bioactivity to bond with the living bone. This study was aimed to induce bioactivity to tetragonal zirconia polycrystal (3Y-TZP) by simple biomimetic aqueous solution treatment. First, hydrofluoric acid (HF) etching was performed to enhance the surface roughness of the 3Y-TZP surface. Then, the samples were treated with two types of aqueous solutions containing calcium and phosphate ions (Ca-P solutions); one solution additionally contained magnesium (Mg) ions and the other without Mg ions. Finally, hydroxyapatite (HAp)-forming ability was evaluated by the conventional simulated body fluid (SBF) test, and the effect of Mg ions on the adhesive strength of the HAp layer to the roughened 3Y-TZP surface was also investigated. The results concluded that there were no noticeable differences in the effect of Mg ions on the HAp-forming ability, and both types of solution treatments resulted in dense HAp formation in 1 day SBF immersion. However, incorporation of Mg ions in one of the Ca-P solutions significantly improved the adhesive strength of the HAp layer to the HF-etched 3Y-TZP substrate compared to the Ca-P solution with no Mg ions. |
| first_indexed | 2024-03-10T18:37:25Z |
| format | Article |
| id | doaj.art-5754647ed4a64dcea98eed20ea029c94 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T18:37:25Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-5754647ed4a64dcea98eed20ea029c942023-11-20T06:09:16ZengMDPI AGMaterials1996-19442020-07-011314304510.3390/ma13143045Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution TreatmentHasnat Zamin0Takeshi Yabutsuka1Shigeomi Takai2Hiroshi Sakaguchi3Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, JapanGraduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, JapanGraduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, JapanInstitute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, JapanZirconia is a well-known bioceramic for dental and orthopedic applications due to its mechanical and aesthetic properties. However, it lacks sufficient bioactivity to bond with the living bone. This study was aimed to induce bioactivity to tetragonal zirconia polycrystal (3Y-TZP) by simple biomimetic aqueous solution treatment. First, hydrofluoric acid (HF) etching was performed to enhance the surface roughness of the 3Y-TZP surface. Then, the samples were treated with two types of aqueous solutions containing calcium and phosphate ions (Ca-P solutions); one solution additionally contained magnesium (Mg) ions and the other without Mg ions. Finally, hydroxyapatite (HAp)-forming ability was evaluated by the conventional simulated body fluid (SBF) test, and the effect of Mg ions on the adhesive strength of the HAp layer to the roughened 3Y-TZP surface was also investigated. The results concluded that there were no noticeable differences in the effect of Mg ions on the HAp-forming ability, and both types of solution treatments resulted in dense HAp formation in 1 day SBF immersion. However, incorporation of Mg ions in one of the Ca-P solutions significantly improved the adhesive strength of the HAp layer to the HF-etched 3Y-TZP substrate compared to the Ca-P solution with no Mg ions.https://www.mdpi.com/1996-1944/13/14/3045tetragonal zirconia polycrystaletchingcalcium phosphatemagnesiumhydroxyapatitein vitro bioactivity |
| spellingShingle | Hasnat Zamin Takeshi Yabutsuka Shigeomi Takai Hiroshi Sakaguchi Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment Materials tetragonal zirconia polycrystal etching calcium phosphate magnesium hydroxyapatite in vitro bioactivity |
| title | Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment |
| title_full | Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment |
| title_fullStr | Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment |
| title_full_unstemmed | Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment |
| title_short | Role of Magnesium and the Effect of Surface Roughness on the Hydroxyapatite-Forming Ability of Zirconia Induced by Biomimetic Aqueous Solution Treatment |
| title_sort | role of magnesium and the effect of surface roughness on the hydroxyapatite forming ability of zirconia induced by biomimetic aqueous solution treatment |
| topic | tetragonal zirconia polycrystal etching calcium phosphate magnesium hydroxyapatite in vitro bioactivity |
| url | https://www.mdpi.com/1996-1944/13/14/3045 |
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