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
ي En
| LILACS
| ID: lil-472682
المكتبة المسؤولة:
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).
Key words
النص الكامل:
1
الفهرس:
LILACS
الموضوع الرئيسي:
Acrylic Resins
/
Calcium Sulfate
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Dental Abutments
/
Dental Prosthesis Design
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Elastomers
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Crowns
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Dental Impression Materials
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Dental Materials
/
Models, Dental
/
Denture Rebasing
المحددات:
Humans
اللغة:
En
مجلة:
J. appl. oral sci
موضوع المجلة:
ODONTOLOGIA
السنة:
2008
نوع:
Article
/
Project document