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J Clin Periodontol. 2015 Jul;42(7):632-9. doi: 10.1111/jcpe.12416. Epub 2015 Jun 11.

Effect of application of a PVP-iodine solution before and during subgingival ultrasonic instrumentation on post-treatment bacteraemia: a randomized single-centre placebo-controlled clinical trial.

Author information

1
Clinic of Preventive Dentistry, Cariology and Periodontology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
2
Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland.

Abstract

BACKGROUND:

To assess the effect of concomitant subgingival rinsing with 10% PVP-iodine during subgingival instrumentation on the prevalence and magnitude of bacteraemia of oral origin.

MATERIALS AND METHODS:

Subgingival instrumentation was performed with water or PVP-iodine rinse in patients with periodontitis. Prior to instrumentation, subjects gargled for 1 min with the allocated liquid. Pockets were then rinsed for 1 min and subgingivally instrumented with liquid-cooled (water/PVP-iodine) ultrasonic scalers (1 min). Two minutes later, a blood sample from the arm vein was drawn using a lysis centrifugation blood culture system for quantitative microbiological analysis. Non-parametric statistical tests were performed to assess differences in the prevalence and extent of bacteraemia between groups.

RESULTS:

Of the 19 samples in each group, oral-borne bacteraemia was detected in 10 of the control and 2 of the test samples. With an average of 3.0 [1; 5] colony forming units, significantly less bacteria and bacteraemia were found in the test group compared to the controls (12.2 [1; 46]) (p = 0.003). Anaerobic bacteria were not found in the test group.

CONCLUSIONS:

Bacteraemia after subgingival instrumentation with concomitant PVP-iodine rinsing is reduced but not eliminated. Therefore, it might be recommended for patients at a high risk of endocarditis or infection of endoprostheses. However, preventive antibiotic treatment should not be omitted.

KEYWORDS:

RCT; antiseptics; bacteraemia; periodontitis; ultrasonic debridement

PMID:
25950231
DOI:
10.1111/jcpe.12416
[Indexed for MEDLINE]
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