| Autor: | R. H. Glover, Michael J. Cattell, Jonathan C. Knowles, L. Correr Sobrinho |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Materials science
All ceramic medicine.medical_treatment Fracture test Biomedical Engineering Biophysics Statistical difference Bioengineering Fracture testing Crown (dentistry) Biomaterials Flexural strength visual_art medicine visual_art.visual_art_medium Forensic engineering Ceramic Composite material |
| Zdroj: | Journal of Materials Science Materials in Medicine. 9:517-521 |
| ISSN: | 0957-4530 |
| DOI: | 10.1023/a:1008887805177 |
| Popis: | The purpose of this paper was to investigate the influence of fatigue on the fracture strength of In ceram, optimal pressable ceramic (OPCTM) and IPS Empress in both wet and dry environments. Twenty-six crown shapes 8 mm in diameter and 8.5 mm in height were fabricated for each ceramic system. For each ceramic system, ten specimens were tested for fracture strength without fatiguing. The second group was submitted to a fatigue and fracture test in a dry (eight specimens) and a third group in a wet (eight specimens) environment using an Instron testing machine. The results were statistically analysed using a Mann–Whitney test. The results indicated that: (i) the fracture strength for In ceram was significantly stronger than OPCTM and IPS Empress (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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