Ageing assessment of zirconia implant prostheses by three different quantitative assessment techniques
| Autor: | Kallaya Suputtamongkol, Pong Pongprueksa, Krongkarn Sirinukunwatta, Warangkana Anuchitolarn, Phyu Phyu Kyaw |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
0206 medical engineering 030206 dentistry 02 engineering and technology Phase transformation 020601 biomedical engineering 03 medical and health sciences 0302 clinical medicine Distilled water E-assessment Y-TZP ceramics Ageing Quantitative assessment Cyclic loading Dentistry (miscellaneous) Cubic zirconia Original Article Implant Oral Surgery Nuclear chemistry |
| Zdroj: | The Journal of Advanced Prosthodontics |
| ISSN: | 2005-7814 2005-7806 |
| Popis: | PURPOSE To evaluate the influence of cyclic loading on phase transformation of zirconia abutments and to compare the effectiveness of three different quantitative ageing assessment techniques. MATERIALS AND METHODS Thirty two Y-TZP prostheses fabricated from two brands, InCoris ZI and Ceramill ZI, were cemented to titanium bases and equally divided into two subgroups (n=8): control group without any treatment and aged group with cyclic loading between 20 N and 98 N for 100,000 cycles at 4 Hz in distilled water at 37℃. The tetragonal-to-monoclinic phase transformation was assessed by (i) conventional x-ray diffraction (XRD), (ii) micro x-ray diffraction (µXRD), and (iii) micro-Raman spectroscopy. The monoclinic-phase fractions (M%) were compared by two-way ANOVA. RESULTS InCoris Zi presented significantly higher M% than Ceramill Zi in both control and aged groups (P |
| Databáze: | OpenAIRE |
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