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The Scientific World Journal
Volume 2016, Article ID 7349371, 6 pages
Research Article

In Vitro Adherence of Oral Bacteria to Different Types of Tongue Piercings

1Department of Clinic and Social Dentistry, School of Dentistry, Universidade Federal da Paraíba (UFPB), Campus I, Jardim Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
2Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro (UFPB), 255 Rodolpho Paulo Rocco Street, 21941-913 Rio de Janeiro, RJ, Brazil

Received 5 April 2016; Accepted 27 July 2016

Academic Editor: Marco Annunziata

Copyright © 2016 Lucas Pereira Borges 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.


The purpose of this work was to verify in vitro adherence of E. corrodens and S. oralis to the surface of tongue piercings made of surgical steel, titanium, Bioplast, and Teflon. For this, 160 piercings were used for the count of Colony Forming Units (CFU) and 32 piercings for analysis under scanning electron microscopy. Of these, 96 (24 of each type) were individually incubated in 5 mL of BHI broth and 50 μL of inoculum at 37°C/24 h. The other 96 piercings formed the control group and were individually incubated in 5 mL of BHI broth at 37°C/24 h. Plates were incubated at 37°C/48 h for counting of CFU/mL and data were submitted to statistical analysis ( value ). For E. corrodens, difference among types of material was observed () and titanium and surgical steel showed lower bacterial adherence. The adherence of S. oralis differed among piercings, showing lower colonization () in titanium and surgical steel piercings. The four types of piercings were susceptible to colonization by E. corrodens and S. oralis, and bacterial adhesion was more significant in those made of Bioplast and Teflon. The piercings presented bacterial colonies on their surface, being higher in plastic piercings probably due to their uneven and rough surface.