Periodontitis microbiota

Teeth adherent bacterial biofilms, commonly called plaque or plaques, are responsible for the common forms of periodontal disease (Chap. 13) and dental caries (Chap. 15). In children or adults who keep their teeth clean and have no periodontal disease, the bacteria in a biofilm (the microbiota) is mostly gram positive and resembles that in saliva or adhering to the oral mucosa. The microbiota is predominantly saccharolytic and the major fermentation... 

The Oral Microbiota, Dental Caries, and Periodontal Disease... 

CRP content indicates a persistent proinflammatory stimulus in the body. CRP binds to host or bacterial phosphocholine, and the complex activates a group of plasma proteins called complement (Sect. 3.3.2). The complement system resembles the blood clotting system, except that proteolytic cleavage of its components results in peptide fragments that to attract and enhance the phagocytosis (opsonization) of CRP- or antibody-bound material by macrophages (like IL-1 or IL-8). CRP is part of the innate immune response, and the antibody response is part of the acquired immune response (Sect. 12.1.4). Many bacteria of the successor microbiota induce an antibody response that is increased in periodontitis compared with gingivitis or healthy subjects. 

---