In vitro antimicrobial effectiveness of mouthwashes against Staphylococcus aureus and Pseudomonas aeruginosa

Authors

  • Tereza Aparecida Delle Vedove Semenoff Unesp-FOA
  • Alex Semenoff Segundo Unesp-FOA
  • Éder Ricardo Biasoli Unesp-FOA

Keywords:

Mouthwashes, Staphylococcus aureus, Pseudomonas aeruginosa, chlorhexidine, triclosan, cetylpyridinium

Abstract

Purpose: The purpose of this study was to compare the in vitro antimicrobial effectiveness of Periogard®, Cepacol®, and Plax® against Staphylococcus aureus and Pseudomonas aeruginosa. Methods: Sixteen Petri dishes with blood agar and 16 with Mueller-Hinton agar culture media were used. Four dishes of each culture media were used as negative and positive controls. In the remaining 24 dishes, 4 wet discs were distributed in each Petri dish, as follows: 1 soaked in distilled water (control), 1 in Periogard®, 1 in Plax®, and 1 in Cepacol®. After 48h the inhibition halos of microbial growth were measured with digital calipers. Data were analyzed by ANOVA and Bonferroni test (α=0.05). Results: Regarding P. Aeruginosa, Periogard® was significantly more effective than the other mouthwashes (P< 0.05), followed by Cepacol; Plax® and distilled water did not show inhibition of microorganism growth. Regarding S. aureus, all mouthwashes had significant inhibitory effect in the following descending order: Plax® > Periogard® > Cepacol® (P< 0.05). Conclusion: The results suggest that the tested mouthwashes show different inhibitory potential for growth of Staphylococcus aureus and Pseudomonas aeruginosa. Key words: Mouthwashes; Staphylococcus aureus; Pseudomonas aeruginosa; chlorhexidine; triclosan; cetylpyridinium

Author Biographies

Tereza Aparecida Delle Vedove Semenoff, Unesp-FOA

Doutoranda do Programa de Pós-Graduação em Odontologia Área de Concentração Estomatologia da Universidade do Estado de São Paulo “Júlio de Mesquita Filho” – UNESP - Campus Araçatuba.

Alex Semenoff Segundo, Unesp-FOA

Doutor em Periodontia pela Universidade do Estado de São Paulo “Júlio de Mesquita Filho” – UNESP - Campus Araçatuba e Periodontista do Centro de Especialidades Odontológicas para Pacientes Especiais – CEOPE/MT.

Éder Ricardo Biasoli, Unesp-FOA

Professor Adjunto – Faculdade de Odontologia do Campus de Araçatuba – UNESP.

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Published

2008-06-22

Issue

Vol. 23 No. 4 (2008)

Section

Original Article

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