African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5146

Full Length Research Paper

Microbial contamination of orthodontic appliances made of acrylic resin

Larissa Vanessa Gomes Moreira
  • Larissa Vanessa Gomes Moreira
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Ana Gláucia de Oliveira Macedo
  • Ana Gláucia de Oliveira Macedo
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Anderson Farias da Cunha
  • Anderson Farias da Cunha
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Olga Benario Vieira Maranhao
  • Olga Benario Vieira Maranhao
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Maria Regina Macêdo-Costa
  • Maria Regina Macêdo-Costa
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Kenio Costa de Lima
  • Kenio Costa de Lima
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Sergei Godeiro Fernandes Rabelo Caldas
  • Sergei Godeiro Fernandes Rabelo Caldas
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar
Hallissa Simplício Gomes Pereira
  • Hallissa Simplício Gomes Pereira
  • Department of Dentistry of Universidade Federal do Rio Grande do Norte, Av. Salgado Filho, 59056-000 - Natal, RN - Brasil.
  • Google Scholar


  •  Received: 28 January 2016
  •  Accepted: 22 April 2016
  •  Published: 21 July 2016

Abstract

Patients and professionals involved in dentistry are constantly exposed to potentially pathogenic microorganisms, which may be present in agents such as instruments and equipment, among others. The production of orthodontic appliances, as well as other dentistry work, is carried out in a dental laboratory where there is potential for cross-infection. Nevertheless, studies which evaluate the presence of bacterial contamination of orthodontic appliances after routine procedures in the dental laboratory are not enough. Also, there is no established clinical protocol for infection control of orthodontic appliances before they are installed in the patient. This study aimed at evaluating bacterial contamination of orthodontic appliances and the effectiveness of disinfection with 2% chlorhexidine and 0.12% chlorhexidine. Two microbiological collections were done from 60 orthodontic appliances made of chemically active acrylic resin. The first collection was made before disinfection and the second was done after, in order to evaluate bacterial growth. After analysis, it was found that 85% of sampled devices introduced were contaminated and that disinfection protocol performed with 2% chlorhexidine was effective. Furthermore, the adopted disinfection protocol should have the device soaked in 2% chlorhexidine for 10 min to prevent patient contamination from contaminated orthodontic appliances.

Key words: Orthodontic appliances, chlorhexidine, disinfection.