Polishing methods of an alumina-reinforced feldspar ceramic
The purpose of this study was to test the hypothesis that mechanical polishing methods of ceramic surfaces allow similar superficial roughness to that of glazed surfaces. Twenty-five Vitadur Alpha ceramic discs (5 mm x 2 mm) were prepared according to the manufacturer's specifications. All specimens were glazed and randomly assigned to 5 groups (n=5), according to finishing and polishing protocols: G1: glazed (control); G2: diamond bur finishing; G3: G2 + silicon rubber tip polishing; G4: G3 + felt disc/diamond polishing paste; G5: G3 + felt disc impregnated with fine-particle diamond paste. Next, surface roughness means (Ra - µm) were calculated. Qualitative analysis was made by scanning electron microscopy. Surface roughness data were submitted to ANOVA and Tukey's test at 5% significance level. G1 and G4 were statistically similar (p>0.05). G2 presented the highest roughness means (p<0.05) followed by groups G3, G5, G4 and G1 in a decreasing order. The hypothesis was partially confirmed as only the mechanical polishing (G4) produced similar superficial roughness to that of surface glazing, although finishing and polishing are technically critical procedures.
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Fundação Odontológica de Ribeirão Preto
2006
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oai:scielo:S0103-644020060004000042007-01-19Polishing methods of an alumina-reinforced feldspar ceramicBottino,Marco CíceroValandro,Luiz FelipeKantorski,Karla ZaniniBressiani,José CarlosBottino,Marco Antonio alumina-reinforced feldspar ceramic surface roughness finishing and polishing The purpose of this study was to test the hypothesis that mechanical polishing methods of ceramic surfaces allow similar superficial roughness to that of glazed surfaces. Twenty-five Vitadur Alpha ceramic discs (5 mm x 2 mm) were prepared according to the manufacturer's specifications. All specimens were glazed and randomly assigned to 5 groups (n=5), according to finishing and polishing protocols: G1: glazed (control); G2: diamond bur finishing; G3: G2 + silicon rubber tip polishing; G4: G3 + felt disc/diamond polishing paste; G5: G3 + felt disc impregnated with fine-particle diamond paste. Next, surface roughness means (Ra - µm) were calculated. Qualitative analysis was made by scanning electron microscopy. Surface roughness data were submitted to ANOVA and Tukey's test at 5% significance level. G1 and G4 were statistically similar (p>0.05). G2 presented the highest roughness means (p<0.05) followed by groups G3, G5, G4 and G1 in a decreasing order. The hypothesis was partially confirmed as only the mechanical polishing (G4) produced similar superficial roughness to that of surface glazing, although finishing and polishing are technically critical procedures.info:eu-repo/semantics/openAccessFundação Odontológica de Ribeirão PretoBrazilian Dental Journal v.17 n.4 20062006-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402006000400004en10.1590/S0103-64402006000400004 |
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Bottino,Marco Cícero Valandro,Luiz Felipe Kantorski,Karla Zanini Bressiani,José Carlos Bottino,Marco Antonio |
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Bottino,Marco Cícero Valandro,Luiz Felipe Kantorski,Karla Zanini Bressiani,José Carlos Bottino,Marco Antonio Polishing methods of an alumina-reinforced feldspar ceramic |
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Bottino,Marco Cícero Valandro,Luiz Felipe Kantorski,Karla Zanini Bressiani,José Carlos Bottino,Marco Antonio |
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Bottino,Marco Cícero |
title |
Polishing methods of an alumina-reinforced feldspar ceramic |
title_short |
Polishing methods of an alumina-reinforced feldspar ceramic |
title_full |
Polishing methods of an alumina-reinforced feldspar ceramic |
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Polishing methods of an alumina-reinforced feldspar ceramic |
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Polishing methods of an alumina-reinforced feldspar ceramic |
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polishing methods of an alumina-reinforced feldspar ceramic |
description |
The purpose of this study was to test the hypothesis that mechanical polishing methods of ceramic surfaces allow similar superficial roughness to that of glazed surfaces. Twenty-five Vitadur Alpha ceramic discs (5 mm x 2 mm) were prepared according to the manufacturer's specifications. All specimens were glazed and randomly assigned to 5 groups (n=5), according to finishing and polishing protocols: G1: glazed (control); G2: diamond bur finishing; G3: G2 + silicon rubber tip polishing; G4: G3 + felt disc/diamond polishing paste; G5: G3 + felt disc impregnated with fine-particle diamond paste. Next, surface roughness means (Ra - µm) were calculated. Qualitative analysis was made by scanning electron microscopy. Surface roughness data were submitted to ANOVA and Tukey's test at 5% significance level. G1 and G4 were statistically similar (p>0.05). G2 presented the highest roughness means (p<0.05) followed by groups G3, G5, G4 and G1 in a decreasing order. The hypothesis was partially confirmed as only the mechanical polishing (G4) produced similar superficial roughness to that of surface glazing, although finishing and polishing are technically critical procedures. |
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Fundação Odontológica de Ribeirão Preto |
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2006 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402006000400004 |
work_keys_str_mv |
AT bottinomarcocicero polishingmethodsofanaluminareinforcedfeldsparceramic AT valandroluizfelipe polishingmethodsofanaluminareinforcedfeldsparceramic AT kantorskikarlazanini polishingmethodsofanaluminareinforcedfeldsparceramic AT bressianijosecarlos polishingmethodsofanaluminareinforcedfeldsparceramic AT bottinomarcoantonio polishingmethodsofanaluminareinforcedfeldsparceramic |
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