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Microshear bond strength evaluation of surface pretreated zirconia ceramics bonded to dentin

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...

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Detalles Bibliográficos
Autores principales: Anand, Shenbagakuttalam, Ebenezar, Ambrose Vedamanickam Rajesh, Anand, Nirupa, Rajkumar, Kothandaraman, Mahalaxmi, Sekar, Srinivasan, Narasimhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4439850/
https://www.ncbi.nlm.nih.gov/pubmed/26038654
http://dx.doi.org/10.4103/1305-7456.156832
Descripción
Sumario: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.