Читать книгу Basic Guide to Oral Health Education and Promotion - Alison Chapman - Страница 77

Bacteria begin to produce carbon dioxide and also excrete waste products. The environment becomes more attractive to gram‐negative species (which stain red when exposed to Gram’s stain). The plaque becomes thicker and denser as it matures, and contains diverse species that have a potential to cause disease. Mushroom‐shaped ‘clouds’ of matrix form with channels running between them to facilitate the movement of nutrients and waste products (Figure 2.3).