Microshear bond strength evaluation of surface pretreated zirconia ceramics bonded to dentin
| Autor: | Kothandaraman Rajkumar, Nirupa Anand, Ambrose Vedamanickam Rajesh Ebenezar, Shenbagakuttalam Anand, Narasimhan Srinivasan, Sekar Mahalaxmi |
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| Rok vydání: | 2015 |
| Předmět: |
sandblasting
Universal testing machine Materials science Bond strength Significant difference Group ii 030206 dentistry Hydrofluoric acid etching 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Group (periodic table) visual_art visual_art.visual_art_medium Dentin medicine Original Article Cubic zirconia Ceramic selective infiltration etching Zirconia blocks General Dentistry Nuclear chemistry |
| Zdroj: | European Journal of Dentistry |
| ISSN: | 1305-7464 1305-7456 |
| DOI: | 10.4103/1305-7456.156832 |
| Popis: | Objectives: To comparatively assess the micro shear bond strength (MSBS) of dentin bonded surface pre-treated zirconia ceramics. Materials and Methods: Zirconia blocks were sectioned into 50 cubical blocks. The blocks were further categorized into five groups (n = 10 each). Group I: No treatment was performed on zirconia samples; Group II: The zirconia samples were sand-blasted; Group III: Group II + etched with 9.8% of hydrofluoric (HF) acid for 60 s; Group IV: The sandblasted zirconia samples were selectively infiltrated with low fusing porcelain; and Group V: Group IV + etched using 9.8% HF acid gel. The zirconia specimens were then bonded to dentin samples, and the samples were tested for MSBS evaluation using universal testing machine. Results: The MSBS of all the four experimental groups shows greater value than group I. Among the experimental groups, group V and group IV do not show any statistical significant difference, whereas the mean MSBS of groups IV and V were statistically greater than group III and group II. However, groups I, II, and III do not show any statistical significant difference in mean MSBS values between them. Conclusion: Selective infiltration etching of zirconia ceramics provides the highest bond strength with resin cement. |
| Databáze: | OpenAIRE |
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