A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements
Objectives: Bonding of zirconia crowns and bridges to abutments is important, not only bonding of the thin resin layer to the abutment, but also bonding to the zirconia ceramic is crucial. Both mechanical and chemical adhesion are desired. Mechanical retention of dental porcelain achieved by etching...
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| Language: | English |
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Medical Journals Sweden
2017-01-01
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| Series: | Acta Biomaterialia Odontologica Scandinavica |
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| Online Access: | http://dx.doi.org/10.1080/23337931.2017.1309658 |
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| author | Eystein Ivar Ruyter Nalini Vajeeston Torbjørn Knarvang Ketil Kvam |
| author_facet | Eystein Ivar Ruyter Nalini Vajeeston Torbjørn Knarvang Ketil Kvam |
| author_sort | Eystein Ivar Ruyter |
| collection | DOAJ |
| description | Objectives: Bonding of zirconia crowns and bridges to abutments is important, not only bonding of the thin resin layer to the abutment, but also bonding to the zirconia ceramic is crucial. Both mechanical and chemical adhesion are desired. Mechanical retention of dental porcelain achieved by etching with moderately concentrated hydrofluoric acid is not possible with zirconia ceramics. The purpose of this study was to show that etching is possible with relative low melting fluoride compounds such as ammonium hydrogen difluoride and potassium hydrogen difluoride. Materials and methods: Before melting, the fluorides can be introduced as powders or as aqueous slurries to the contact surfaces of the zirconia. After melting, the yttria-stabilized zirconia surface revealed a surface similar to an HF-etched dental feldspathic porcelain surface. Shear bond testing (n = 10) was performed with zirconia attached to zirconia with the Duo-Link composite luting cement (Bisco) after treatment of the etched zirconia surfaces with Bis-Silane (Bisco) and the Porcelain Bonding Resin (Bisco). Results: Values for adhesive strength (mean ± standard deviation) after melt etching of the surfaces with initially dry powders were for K[FHF], (31.2 ± 7.5) MPa and for NH4[FHF] (31.0 ± 11.8) MPa. When initially aqueous slurries were applied, the values were for K[FHF] (42.7 ± 12.7) MPa and for NH4[FHF] (40.3 ± 10.0) MPa. Conclusion: Good adhesion to zirconia can be achieved by a procedure including etching with selected melted fluoride compounds. |
| format | Article |
| id | doaj-art-73bfecedd23a4857a5574c44f2a33be6 |
| institution | Kabale University |
| issn | 2333-7931 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Medical Journals Sweden |
| record_format | Article |
| series | Acta Biomaterialia Odontologica Scandinavica |
| spelling | doaj-art-73bfecedd23a4857a5574c44f2a33be62025-01-02T09:16:09ZengMedical Journals SwedenActa Biomaterialia Odontologica Scandinavica2333-79312017-01-0131364610.1080/23337931.2017.13096581309658A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cementsEystein Ivar Ruyter0Nalini Vajeeston1Torbjørn Knarvang2Ketil Kvam3NIOM – Nordic Institute of Dental materialsNIOM – Nordic Institute of Dental materialsNIOM – Nordic Institute of Dental materialsNIOM – Nordic Institute of Dental materialsObjectives: Bonding of zirconia crowns and bridges to abutments is important, not only bonding of the thin resin layer to the abutment, but also bonding to the zirconia ceramic is crucial. Both mechanical and chemical adhesion are desired. Mechanical retention of dental porcelain achieved by etching with moderately concentrated hydrofluoric acid is not possible with zirconia ceramics. The purpose of this study was to show that etching is possible with relative low melting fluoride compounds such as ammonium hydrogen difluoride and potassium hydrogen difluoride. Materials and methods: Before melting, the fluorides can be introduced as powders or as aqueous slurries to the contact surfaces of the zirconia. After melting, the yttria-stabilized zirconia surface revealed a surface similar to an HF-etched dental feldspathic porcelain surface. Shear bond testing (n = 10) was performed with zirconia attached to zirconia with the Duo-Link composite luting cement (Bisco) after treatment of the etched zirconia surfaces with Bis-Silane (Bisco) and the Porcelain Bonding Resin (Bisco). Results: Values for adhesive strength (mean ± standard deviation) after melt etching of the surfaces with initially dry powders were for K[FHF], (31.2 ± 7.5) MPa and for NH4[FHF] (31.0 ± 11.8) MPa. When initially aqueous slurries were applied, the values were for K[FHF] (42.7 ± 12.7) MPa and for NH4[FHF] (40.3 ± 10.0) MPa. Conclusion: Good adhesion to zirconia can be achieved by a procedure including etching with selected melted fluoride compounds.http://dx.doi.org/10.1080/23337931.2017.1309658Difluoride melt etchingXRD analysisFTIR spectroscopySEM |
| spellingShingle | Eystein Ivar Ruyter Nalini Vajeeston Torbjørn Knarvang Ketil Kvam A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements Acta Biomaterialia Odontologica Scandinavica Difluoride melt etching XRD analysis FTIR spectroscopy SEM |
| title | A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements |
| title_full | A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements |
| title_fullStr | A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements |
| title_full_unstemmed | A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements |
| title_short | A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements |
| title_sort | novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin based luting cements |
| topic | Difluoride melt etching XRD analysis FTIR spectroscopy SEM |
| url | http://dx.doi.org/10.1080/23337931.2017.1309658 |
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