We present a protocol for structural and compositional analysis of natural oral biofilm from orthodontic appliances with in situ hybridization (FISH) and confocal laser scanning microscopy (CLSM). Oral biofilm samples were collected from palatal expanders, scraping acrylic-resin flakes off their surface and referring them for molecular processing.
Klug, B., Rodler, C., Koller, M., Wimmer, G., Kessler, H. H., Grube, M., Santigli, E. Oral Biofilm Analysis of Palatal Expanders by Fluorescence In-Situ Hybridization and Confocal Laser Scanning Microscopy. J. Vis. Exp. (56), e2967, doi:10.3791/2967 (2011).