EVALUATION OF POROSITY AND BIOFILM FORMATION IN RELINE RESINS THROUGH OPTICAL COHERENCE TOMOGRAPHY

• Published in: Oral surgery, oral medicine, oral pathology and oral radiology oral medicine, oral pathology and oral radiology, 2020-01, Vol.129 (1), p.e180-e180
• Main Authors: DE AQUINO, MAYRA MACEDO, MOTA, CLAUDIA CRISTINA BRAINER OLIVEIRA, GOMES, ANDERSON STEVENS LEONIDAS
• Format: Article
• Language: English
• ISSN: 2212-4403; 2212-4411
• DOI: 10.1016/j.oooo.2019.06.762

To evaluate the porosity and adhesion of mixed colony microorganisms in reline resins by means of optical coherence tomography (OCT). Two commercial brands of reline resins (Soft-Comfort and Coe-Comfort) were used, divided into 2 groups, and 10 samples were made for each group. Samples were submitted to OCT scanning before and after 96 hours inoculation with Candida albicans. The OCT images were composed of 2000 columns and 512 lines, obtained from a commercial model, Callisto SD-OCT (Thorlabs, USA), operating at 930 nm of central wavelength and 7 μm of axial resolution in the air. After the images were acquired, they were submitted to qualitative and quantitative analysis. It was possible to verify differences between OCT images before and after inoculation of microorganisms (MO). These differences suggest the observation of fluid absorption and presence of biofilm in the resins. As for the porosity, the Soft-Comfort resin presented higher values compared with the Coe-Comfort resin. The OCT technique allows to evaluate the adhesion of microorganisms and porosity in reline resins.