Effect of conventional and microwave glazing on surface roughness of metal ceramics: An atomic force microscopy analysis

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dc.contributor.authorSachdeva, Akankshaen_US
dc.contributor.authorPrabhu, Nayanaen_US
dc.contributor.authorDhanasekar, Ben_US
dc.contributor.authorAparna, INen_US
dc.date.accessioned2020-01-02T06:45:12Z
dc.date.available2020-01-02T06:45:12Z
dc.date.issued2018-05
dc.description.abstractThis study investigated and compared the surface roughness achieved by glazing porcelain samples in a conventional and a microwave oven. Materials and Methods: Two commercial brands of metal ceramics were used, VITA VMK MASTER and IPS CLASSIC. Sixty samples were fabricated, 30 for each type of ceramic. The samples were sintered in the conventional oven and hand-polished to remove any irregularities. Samples (n = 10) from each type of ceramic were further divided into three groups as follows: hand-polished (Group A), conventional oven glazed (Group B), and microwave glazed (Group C). Each specimen was evaluated for surface roughness by atomic force microscope. Data were statistically analyzed using two-way analysis of variance (ANOVA) and Tukey's post hoc test (a = 0.05). Results: Two-way ANOVA indicated a highly significant difference in surface roughness based on the type of glazing (P < 0.001), there was a significant difference based on the metal ceramics (P = 0.002). There was also a significant interaction between the type of glazing and metal ceramics (P = 0.009). The images obtained from the atomic force microscope corroborated the measured values. Conclusions: All the results indicate that microwave glazing can be a feasible option for glazing porcelain specimens. It was concluded that surface topography is influenced by surface treatment and microwave glazed ceramic is superior to conventional oven glazed ceramic and hand-polishing showed greater surface roughness when compared to glazing. IPS CLASSIC ceramic showed relatively smooth surface when compared to VITA VMK MASTER irrespective of the surface treatment.en_US
dc.identifier.affiliationsDepartment of Prosthodontics and Crown and Bridge, Manipal College of Dental Sciences, Manipal University, Manipal, Karnataka, Indiaen_US
dc.identifier.citationSachdeva Akanksha, Prabhu Nayana, Dhanasekar B, Aparna IN. Effect of conventional and microwave glazing on surface roughness of metal ceramics: An atomic force microscopy analysis. Indian Journal of Dental Research. 2018 May; 29(3): 352-357en_US
dc.identifier.issn0970-9290
dc.identifier.issn1998-3603
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/192077
dc.languageenen_US
dc.publisherIndian Society for Dental Researchen_US
dc.relation.issuenumber3en_US
dc.relation.volume29en_US
dc.source.urihttps://dx.doi.org/10.4103/ijdr.IJDR_397_16en_US
dc.subjectAtomic force microscopeen_US
dc.subjectdental ceramicen_US
dc.subjectglazingen_US
dc.subjectmicrowave sinteringen_US
dc.subjectsurface roughnessen_US
dc.titleEffect of conventional and microwave glazing on surface roughness of metal ceramics: An atomic force microscopy analysisen_US
dc.typeJournal Articleen_US
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