Comparison of impression techniques and double pouring by dental cast's accuracy. Preliminary clinical-lab trial
Braz. j. oral sci
; 18: e191692, jan.-dez. 2019. ilus
Article
in En
| LILACS, BBO
| ID: biblio-1095302
Responsible library:
BR218.1
ABSTRACT
Aim:
This study compared impression techniques and double pouring by means of cast's accuracy.Methods:
For each patient (n=10), impressions from right maxillary canine to first molar were made with acrylic resin trays and vinyl-polysiloxane using one single-step, and four two-steps techniques relief with poly(vinyl chloride) film; tungsten-carbide bur/scalpel blade; small movements of the tray; non-relief. Total visible buccal surface area of crowns was measured three times using photographs from patients (Baseline) and casts. Mean area values (mm2) between Baseline and casts differences were analyzed by two-way repeated-measures ANOVA (α=.05; 1-ß=85%).Results:
No significant differences were observed for Impression Techniques (P=.525), Double Pouring (P=.281), and their interaction (P=.809).Conclusion:
All impression techniques and double pouring produced casts with similar accuracyKey words
Full text:
1
Index:
LILACS
Main subject:
Dental Impression Technique
/
Photography, Dental
/
Dental Impression Materials
/
Dimensional Measurement Accuracy
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Braz. j. oral sci
Journal subject:
ODONTOLOGIA
Year:
2019
Type:
Article