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BioMed Research International
Volume 2017, Article ID 3838640, 7 pages
Research Article

Characterization of Oral Microbiota in Removable Dental Prosthesis Users: Influence of Arterial Hypertension

1Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP, Brazil
2Clinical Hospital, Federal University of Triangulo Mineiro, Uberaba, MG, Brazil

Correspondence should be addressed to Leila Maria Marchi-Alves; rb.psu.pree@ihcraml

Received 17 April 2017; Accepted 28 May 2017; Published 21 June 2017

Academic Editor: Frederick D. Quinn

Copyright © 2017 Leila Maria Marchi-Alves et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. Studies have described the possible relation between oral infections and atherosclerotic events. Objective. To characterize the oral microbiota of normotensive and hypertensive users of dental prostheses. Methods. The sample consisted of 41 complete dental prosthesis users, divided into groups: 21 participants with systemic arterial hypertension and 20 normotensive participants. The data collection included the characteristics of the sociodemographic variables and the determination of the microbial load in the saliva. For the descriptive analyses, Statistical Package for the Social Sciences was used. The description of the proportional differences between the groups was based on the application of Mann–Whitney’s statistical test. Statistical significance was set at 5% (p < 0.05). Results. The analysis of the oral microbiota showed the vast growth of aerobic microorganisms in all samples from both groups. The microbial load of streptococci and staphylococci was significantly higher among hypertensive participants. Candida yeasts were detected in the saliva culture of most samples. The hypertensive participants rank in the category of very high colonization index/high risk of infection related to this microorganism. Conclusions. The mouth of dental prosthesis users, especially when hypertensive, can constitute an important reservoir of pathogens, indicating an established inflammatory or infectious condition or risk for developing this condition.