Effect of cervical relining of acrylic resin copings on the accuracy of stone dies obtained using a polyether impression material
J. appl. oral sci
; 16(1): 7-11, Jan.-Feb. 2008. ilus, tab
Article
en En
| LILACS
| ID: lil-472682
Biblioteca responsable:
BR1.1
ABSTRACT
The purpose of this study was to evaluate the accuracy of the respective dies after polyether elastomeric procedure in the presence or absence of cervical contact of the acrylic resin shell with the cervical region, establishing a comparison to dies obtained with stock trays. This study consisted of three groups with 10 specimens each 1) acrylic copings without cervical contact, (cn); 2) acrylic copings with cervical contact (cc); 3) perforated stock tray, (st). The accuracy of the resulting dies was verified with the aid of a master crown, precisely fit to the master steel die. ANOVA test found statistically significant differences among groups (p<0.001). Tukey's test found that the smallest discrepancy occurred in group cn, followed by cc, while the st group presented the highest difference (cc x cn p=0.007; st x cn p<0.001; st x cc p<0.001).
Palabras clave
Texto completo:
1
Índice:
LILACS
Asunto principal:
Resinas Acrílicas
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Sulfato de Calcio
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Pilares Dentales
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Diseño de Prótesis Dental
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Elastómeros
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Coronas
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Materiales de Impresión Dental
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Materiales Dentales
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Modelos Dentales
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Rebasado de Dentaduras
Límite:
Humans
Idioma:
En
Revista:
J. appl. oral sci
Asunto de la revista:
ODONTOLOGIA
Año:
2008
Tipo del documento:
Article
/
Project document