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Clinical Oral Investigations

Published in:

01-03-2013 | Original Article

Disinfection effect of dental impression tray adhesives

Authors: Tobias Bensel, Rita Pollak, Michael Stimmelmayr, Jeremias Hey

Published in: Clinical Oral Investigations | Issue 2/2013

Abstract

Objectives

Iatrogenic infections are serious problems in dental offices. Impression tray adhesives are delivered in glass containers with a fixed brush attached inside the cap. Using the brush for application of the impression tray adhesive on a contaminated impression tray or prostheses, pathogen transmission by replacing the cap with the brush is possible.

Materials and methods

Bacterial strains (patient strains and in vitro strains) were supervaccinated on Columbia agar. The bacterial solution was diluted with TSB and aerobically grown, and starting concentration was 1 × 10⁷ cfu/ml. The stock solution was placed on Columbia agar. Alginate, polyether, and silicon impression tray adhesives were applied to the center of the particular blood agar plates and incubated for 48 h. The expansion of the inhibition zone assays were measured using a microscope.

Results

Twenty-one different bacterial strains were selected in the saliva samples of 20 patients. The growth inhibition for alginate impression tray adhesive was 1.1 % (±0.3) of the patient strains. The overgrowth of polyether impression tray adhesive was 30.6 % (±9.3) and for silicon impression tray adhesive 11.8 % (±5.0). In in vitro strains, alginate impression tray adhesive performed an inhibition of 0.7 % (±0.3). The overgrowth of polyether impression tray adhesive was 7.0 % (±1.6) and for silicon impression tray adhesive was 6.5 % (±1.3).

Conclusions

Using the fixed brush for application of the impression tray adhesive on multiple patients, a cross-contamination cannot be ruled out.

Clinical relevance

An application of the impression tray adhesive with a pipette and a single-use brush would eliminate the contamination.

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Title: Disinfection effect of dental impression tray adhesives
Authors: Tobias Bensel
Rita Pollak
Michael Stimmelmayr
Jeremias Hey
Publication date: 01-03-2013
Publisher: Springer-Verlag
Published in: Clinical Oral Investigations / Issue 2/2013
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-012-0735-z

At a glance: The STEP trials

Springer Medicine

Disinfection effect of dental impression tray adhesives

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

At a glance: The STEP trials

Springer Medicine

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

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