Local Factors That Increase Plaque Biofilm Pathogenicity
Pathogenicity can be described as the ability of pathogenic agent to actually produce the disease. In the dental context of pathogenicity can be considered as the ability of plaque biofilm the cause of periodontal disease. Plaque biofilm pathogenicity relates to the character plaque biofilm, and not simply increase the amount of plaque biofilm.
1. Undisturbed Plaque Biofilm Growth
The Plaque A. Biofilms Maturation
1. Plaque biofilm allowed to grow undisturbed said "Mature". As plaque biofilm grows up, becomes colonization larger number of bacteria.
2. Starting with a perfectly clean surface of the teeth, plaque biofilm bacteria accumulate in predictable in any of the tooth surface is not cleared from the patient.
a. Immediately after cleaning, salivary proteins attach to the tooth surface and form a film.
B. For the first 2 days, the film becomes colonization of aerobic gram-positive cocci and bacilli. These bacteria can cause inflammation of the gums, but not the cause of periodontitis.
c. In the next week, other bacteria enter the plaque biofilm. These new bacteria are those that can become a cause of periodontitis.
1) bacteria in this stage plaque biofilm development include some Gram-negative anaerobic cocci and gram-negative Bacillus.
2) in addition, at this stage specific periodontal pathogens can colonize plaque biofilm, including Fusobacterium species and Prevotella intermedia.
d. Later, other bacteria, including Porphyromonas gingivalis to colonize plaque biofilm. Some of these bacteria associated with periodontal disease.
B. Increase Plaque Biofilm Pathogenicity
1. The concept plaque biofilm pathogenicity means the ability of the bacteria in plaque biofilm producing of periodontal disease.
a. It is important to understand that all the plaque biofilm that stayed calm and allowed to Mature (i.e., age} on the tooth surface, eventually colonized by bacteria known to cause periodontal disease.
B. As plaque biofilm Matures in this plaque biofilm, it becomes more pathogenic than plaque biofilm that first developed on the tooth surface, because it involves more bacteria that are the agents in periodontitis (Fig. 7-7).
2. The increase in plaque biofilm pathogenicity closely connected to some plaque biofilm storage factors. Plaque biofilm storage factors, which not only allow to increase the amount of plaque biofilm on the website, but they can also allow plaque biofilm to Mature and growth of pathogenicity.