Accuracy of Single-Step versus 2-Step Double-Mix Impression Technique
Joint Authors
Franco, Eduardo Batista
Herrera, Francyle Simões
Benetti, Ana Raquel
Cunha, Leonardo Fernandes da
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-25
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objective.
To investigate the accuracy of dies obtained from single-step and 2-step double-mix impressions.
Material and Methods.
Impressions (n=10) of a stainless steel die simulating a complete crown preparation were performed using a polyether (Impregum Soft Heavy and Light body) and a vinyl polysiloxane (Perfectim Blue Velvet and Flexi-Velvet) in two consistencies, in one or two (without relief) steps.
Accuracy of the stone dies was accessed at a measuring microscope, using a metallic crown with perfect fit to the reference crown preparation.
Data were submitted to 2-way ANOVA and Tukey test (α=0.05).
Results.
The single-step technique resulted in slightly larger dies, while the 2-step technique without relief produced significantly smaller dies, when compared to the original stainless steel die.
Stone dies obtained from 2-step polyether impressions were significantly smaller when compared to dies obtained from 2-step vinyl polysiloxane impressions (Impregum 2-step: −290.94 ± 71.64 μm; Perfectim 2-step: −201.86 ± 28.58 μm).
No significant differences were observed in dies obtained from either polyether or vinyl polysiloxane with the single-step technique (Impregum single-step: 63.52 ± 16.60 μm; Perfectim single-step: 79.40 ± 14.11 μm).
Conclusion.
Higher discrepancies were detected for the 2-step impression technique without relief for the investigated materials.
American Psychological Association (APA)
Franco, Eduardo Batista& Cunha, Leonardo Fernandes da& Herrera, Francyle Simões& Benetti, Ana Raquel. 2011. Accuracy of Single-Step versus 2-Step Double-Mix Impression Technique. ISRN Dentistry،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-464240
Modern Language Association (MLA)
Franco, Eduardo Batista…[et al.]. Accuracy of Single-Step versus 2-Step Double-Mix Impression Technique. ISRN Dentistry No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-464240
American Medical Association (AMA)
Franco, Eduardo Batista& Cunha, Leonardo Fernandes da& Herrera, Francyle Simões& Benetti, Ana Raquel. Accuracy of Single-Step versus 2-Step Double-Mix Impression Technique. ISRN Dentistry. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-464240
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464240