Revista de Odontologia da UNESP
Revista de Odontologia da UNESP
Original Article

Cross-Infection Control Policy Adopted by Dental Technicians

Medidas de Controle de Infecção Cruzada Adotadas pelos Protéticos

Campanha, N.H.; Pavarina, A.C.; Vergani, C.E.; Machado, A.L.; Giampaolo, E.T.

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In order to prevent the transmission of infectious disease, effective infection control procedures should be exercised by all dentists, in-office dental auxiliaries and dental technicians. This survey aimed to gather information from routine practice about cross-infection control of dental laboratory work in relation to whether impressions and items of laboratory work were routinely disinfected or not. One hundred and thirty-one subjects were interviewed by the same interviewer, using a structured questionnaire. There were 17 women (13%) and 114 men (87%). The results revealed that 51% of the interviewed technicians attended a specific technical prosthetic course. Fifty four percent of the professionals in this study have been practicing for over 20 years; 13.1%, between 15 and 20 years; 8.5%, between 11 and 15 years; 16.9% between 5 and 10 years and 7.7% started practice in the last five years. According to the results, 88% percent of the respondents routinely rinsed dental impressions with water. When a prosthesis reaches the laboratory for finishing and polishing, the professionals answered to proceed as follows: 79.2% washed the piece in tap water on arrival; 10.8% did the polishing without previously undertaking any prophylactic measure; 9.2% disinfected the item and 0.8% did not answer. Although a great number of respondents are aware of the transmission of viral and bacterial infections, the results of this study demonstrated that there is a need for more education to prevent cross-contamination in the carrying of the items from the clinic to the laboratory and vice-versa.


Laboratory infection, contamination, infection control, dental, disinfection, dental technicians


Com o objetivo de evitar a transmissão de doenças infecciosas, medidas que visem o controle de infecção cruzada devem ser adotadas pelos cirurgiões dentistas, auxiliares odontológicos e técnicos de laboratório. Este estudo investigou as condutas de rotina adotadas pelos técnicos para prevenir a contaminação cruzada no laboratório de prótese. Foram coletados informações referentes à desinfecção de moldes e outros itens protéticos. Questionários foram aplicados verbalmente a 131 profissionais pelo mesmo entrevistador. Entre os técnicos entrevistados, 17 eram mulheres (13%) e 114 eram homens (87%). Os resultados revelaram que 51% dos técnicos frequentaram um curso técnico. Cinqüenta e quatro por cento dos técnicos praticavam a profissão por mais de 20 anos; 13,1%, entre 15 e 20 anos; 8,5%, entre 11 e 15 anos; 16,9% entre 5 e 10 anos e 7,7% iniciaram suas atividades nos últimos 5 anos. De acordo com os resultados, 88% dos entrevistados enxaguavam rotineiramente os moldes com água. Com relação aos procedimentos adotados quando uma prótese é recebida no laboratório para polimento e acabamento, foram obtidos os seguintes resultados: 79,2% dos técnicos somente lavavam a prótese em água corrente, 10,8% realizavam o polimento sem medidas profiláticas, 9,2% desinfetavam a prótese e 0,8% não responderam. Embora grande parte dos entrevistados estivesse consciente da transmissão de infecções virais e bacterianas, os resultados deste estudo demonstraram que há a necessidade de maior motivação e instrução aos técnicos para a prevenção de contaminação cruzada durante o envio e o recebimento de trabalhos protéticos entre o laboratório de prótese e o consultório odontológico.


Infecção laboratorial, contaminação, controle de infecções dentárias, desinfecção, técnicos em prótese dentária


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