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Randomized controlled clinical study on the accuracy of two-stage putty-and-wash impression materials.
Int J Prosthodont. 2009 May-Jun; 22(3):296-302.IJ

Abstract

PURPOSE

The accuracy of dental impression taking is one major factor influencing the fit of crowns and fixed partial dentures. The aim of this study was to determine the accuracy of three-dimensional (3-D) tooth surface and subgingival tooth surface reproduction using three different silicone materials and the two-stage putty-and-wash technique.

MATERIALS AND METHODS

From 24 probands, three impressions each were taken with Express STD Putty/Wash (3M ESPE), Optosil/Xantopren L (Heraeus Kulzer), and an experimental ultralight body/putty material (3M ESPE) in a randomized order. The preliminary impression was cut according to established procedures for the two-stage putty-and-wash technique. Master casts were manufactured with a standardized procedure and optically digitized. The 3-D accuracy was analyzed with a computer-aided procedure. The Express STD putty-and-wash impressions were used as a reference. Linear models were used for the statistical analysis.

RESULTS

Mean deviations of 27.0 microm and -23.6 microm were found for Optosil/Xantopren L and 26.5 microm and -22.6 microm for the experimental material when analyzing 3-D surface reproduction. The tooth surface (buccal/oral) significantly influenced the accuracy of the surface reproduction. Optosil/Xantopren L showed a more complete reproduction of the subgingival tooth surface than either the experimental or reference materials.

CONCLUSION

The accuracy of the 3-D tooth surface reproduction as well as the reproduction of the subgingival tooth surface was not favorably influenced when the ultralight wash material was used with established cutting procedures for the preliminary impression.

Authors+Show Affiliations

Haim M
Department of Prosthetic Dentistry, Dresden University of Technology, University Hospital Carl Gustav Carus Dresden, Dental School, Dresden, Germany.
Luthardt RG
No affiliation info available
Rudolph H
No affiliation info available
Koch R
No affiliation info available
Walter MH
No affiliation info available
Quaas S
No affiliation info available

MeSH

Calcium SulfateComputer-Aided DesignDental Casting InvestmentDental Casting TechniqueDental Impression MaterialsDental ModelsDimethylpolysiloxanesGingivaHumansImage Processing, Computer-AssistedImaging, Three-DimensionalPilot ProjectsProspective StudiesSilicone ElastomersSiliconesSurface PropertiesTooth

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19548415

Citation

Haim, Manuela, et al. "Randomized Controlled Clinical Study On the Accuracy of Two-stage Putty-and-wash Impression Materials." The International Journal of Prosthodontics, vol. 22, no. 3, 2009, pp. 296-302.
Haim M, Luthardt RG, Rudolph H, et al. Randomized controlled clinical study on the accuracy of two-stage putty-and-wash impression materials. Int J Prosthodont. 2009;22(3):296-302.
Haim, M., Luthardt, R. G., Rudolph, H., Koch, R., Walter, M. H., & Quaas, S. (2009). Randomized controlled clinical study on the accuracy of two-stage putty-and-wash impression materials. The International Journal of Prosthodontics, 22(3), 296-302.
Haim M, et al. Randomized Controlled Clinical Study On the Accuracy of Two-stage Putty-and-wash Impression Materials. Int J Prosthodont. 2009 May-Jun;22(3):296-302. PubMed PMID: 19548415.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Randomized controlled clinical study on the accuracy of two-stage putty-and-wash impression materials. AU - Haim,Manuela, AU - Luthardt,Ralph G, AU - Rudolph,Heike, AU - Koch,Rainer, AU - Walter,Michael H, AU - Quaas,Sebastian, PY - 2009/6/25/entrez PY - 2009/6/25/pubmed PY - 2009/9/16/medline SP - 296 EP - 302 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 22 IS - 3 N2 - PURPOSE: The accuracy of dental impression taking is one major factor influencing the fit of crowns and fixed partial dentures. The aim of this study was to determine the accuracy of three-dimensional (3-D) tooth surface and subgingival tooth surface reproduction using three different silicone materials and the two-stage putty-and-wash technique. MATERIALS AND METHODS: From 24 probands, three impressions each were taken with Express STD Putty/Wash (3M ESPE), Optosil/Xantopren L (Heraeus Kulzer), and an experimental ultralight body/putty material (3M ESPE) in a randomized order. The preliminary impression was cut according to established procedures for the two-stage putty-and-wash technique. Master casts were manufactured with a standardized procedure and optically digitized. The 3-D accuracy was analyzed with a computer-aided procedure. The Express STD putty-and-wash impressions were used as a reference. Linear models were used for the statistical analysis. RESULTS: Mean deviations of 27.0 microm and -23.6 microm were found for Optosil/Xantopren L and 26.5 microm and -22.6 microm for the experimental material when analyzing 3-D surface reproduction. The tooth surface (buccal/oral) significantly influenced the accuracy of the surface reproduction. Optosil/Xantopren L showed a more complete reproduction of the subgingival tooth surface than either the experimental or reference materials. CONCLUSION: The accuracy of the 3-D tooth surface reproduction as well as the reproduction of the subgingival tooth surface was not favorably influenced when the ultralight wash material was used with established cutting procedures for the preliminary impression. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/19548415/Randomized_controlled_clinical_study_on_the_accuracy_of_two_stage_putty_and_wash_impression_materials_ L2 - https://antibodies.cancer.gov/detail/CPTC-ZAP70-1 DB - PRIME DP - Unbound Medicine ER -