Avaliação do nível de contaminação microbiológica em placas de fósforo na radiologia digital

Resumo (EN)

With the use of digital systems in Dental Radiology and photostimulable image receivers (PSP) that are reusable, there was a greater need to know the substantial risks of contamination during intraoral radiographic examination. Objective – Evaluate the contamination of PSP and its envelope after the performance of intraoral examinations. Methods – Ten PSP plaques were evaluated in two private dental radiology clinics in Goiânia-GO (Clinic A and B) through microbiological analysis after radiographic examinations in 20 patients. The collection was performed using a swab moistened in sterile 0.9% saline solution, stored in tubes with Phosphate-Saline Buffer (PBS), and transported to the UNIP Campus Flamboyant laboratory where they were processed in an ultrasonic bath, sown in agar triplicate. blood and incubated in a bacteriological incubator for 48 hours and evaluated macroscopically. Results – The results showed similar contamination in the protective covering of both clinics (90%), while the photosensitive part of the receivers of clinic A obtained (60%) and clinic B (40%). As for the number of bacterial colonies, there was a greater contamination in the protective envelope of receptors in clinic B with an average number of 4.6 (± 4.02). On the other hand, the photosensitive portion of clinic A receptors showed an average of colonies of 0.76 (± 1.18). Conclusion – The cardboard packaging is a very contaminated part that protected the PSP. It is believed that the greatest contamination of the plastic wrap is due to handling with contaminated gloves during insertion of the PSP in the image reading scanner.