Ispitivanje hrapavosti površine glazirane Y-TZP zubne keramike nakon izlaganja korozivnom mediju

Štefančić, Sanja and Ćurković, Lidija and Baršić, Gorana and Majić Renjo, Marijana and Mehulić, Ketij (2013) Ispitivanje hrapavosti površine glazirane Y-TZP zubne keramike nakon izlaganja korozivnom mediju. = Investigation of glazed Y-TZP dental ceramics corrosion by surface roughness measurement. Acta Stomatologica Croatica, 47 (2). pp. 163-168. ISSN 0001-7019. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. . Točan broj autora: 5.

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Introduction: Among dental applications, the zirconia based ceramics are widespread because of their general properties. The changes in superficial surface roughness correspond to the structural changes in the material caused by the influence of corrosion. The aim of this study was to determine chemical stability of glazed Y-TZP using surface roughness measurements. Materials and methods: Five samples of Y-TZP material BruxZir (Glidewell Laboratories © 2012.) with the addition of pigment A3 were sintered, polished and glazed to imitate the finishing process in producing monolithic crowns. After determining the mass of the sample, each sample was immersed in 10 ml of 4 wt. CH3COOH aqueous solution. The roughness was measured five times before and after immersion. Results: All measured roughness parameters have significantly increased, showing higher penetration depth in all surface areas after immersion in 4 wt. CH3COOH aqueous solution compared to the initial values. Weight loss of investigated dental ceramics samples was 2.45 mg/cm2 ± 0.026. Conclusion: Highly acidic conditions augment surface roughness of Y-TZP glazed dental ceramics.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): acetic acid; dental ceramics; silicon; yttrium; zirconium; article; composite material; controlled study; corrosion; equipment design; materials testing; molecular stability; molecular weight; physical parameters; surface property; surface roughness measurement; tooth implant
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
800 Department of Quality > 810 Chair of Precise Measurement and Quality
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 1 (13.09.2018.)
Date Deposited: 07 May 2015 09:41
Last Modified: 13 Sep 2018 11:18

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