Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/68028
Author(s): Helena Rodrigues
Maria João Ponces
M. Henriques
Pedro Mesquita
Jorge Dias Lopes
Title: Feasibility of reusing orthodontic bands after trial in the mouth. Control of cross infection.
Issue Date: 2012
Abstract: Given the scarcity of studies in the area of cross-infection in Portugal, we carried out a research study aimed at evaluating the effectiveness of two methods of sterilization and disinfection of orthodontic bands, after being tested in the mouth. Simultaneously, we tested the protocol of the Department of Orthodontics of the Dental Faculty of Oporto University (DO-DFOU).35 orthodontic bands were placed in the first molars of 10 individuals. They were removed from the mouth and 5 were separated for the positive control. The remaining 30 bands were immersed in an ultrasonic bath with disinfectant Elusept® for 15 minutes. Then the 30 bands were divided into 3 groups. The first served as control of disinfection, the second and the third were subjected to an additional sterilization with dry heat (210° C, 30 min) and steam (121° C, 33 min) respectively. The third group simulated the protocol of the DO-DFOU. Finally, each band was placed in a phosphate buffer saline solution to remove adherent microorganisms and the resulting suspension was inoculated in a nutrient agar. The number of colony-forming units (CFU) was observed in each plate after 4 days of incubation at 37ºC. In order to relate the results and meet the international reality, we performed a literature search in the Pubmed database using the keywords: cross infection control, orthodontics, orthodontic bands, decontamination, sterilization, disinfection. We selected 25 articles and 2 books.As expected the samples used as positive controls presented a high number of CFUs. The samples submitted to the different treatments did not any CFU, pointing out their efficacy.Considering the methodology used, based on the study of bacterial life forms and that all guidelines for decontamination have been strictly applied, all decontamination methods have proved to be effective and the DO-DFOU protocol is safe. Therefore the reuse of orthodontic bands can be applied taking into account the guidelines for decontamination.
Subject: Ciências da Saúde, Ciências médicas e da saúde
Health sciences, Medical and Health sciences
Scientific areas: Ciências médicas e da saúde
Medical and Health sciences
URI: https://repositorio-aberto.up.pt/handle/10216/68028
Source: 88th Congress of European Orthodontic Society
Document Type: Resumo de Comunicação em Conferência Internacional
Rights: openAccess
License: https://creativecommons.org/licenses/by-nc/4.0/
Appears in Collections:FMDUP - Resumo de Comunicação em Conferência Internacional

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