Porphyromonas gingivalis

1. P. gingivalis can be found in small quantities in health or gingivitis, but more common in aggressive forms of periodontitis [18,19].

2. Species occurs in increasing the number of subjects to show the progression of periodontal disease (deterioration of the defeat of periodontal} [20].

3. P. gingivalis usually observed at sites which display disease recurrence or persistence of deep periodontal pockets after treatment of periodontal [20].

4. P. gingivalis can prevent the migration of cells in epithelial barrier [21].

5. The species has also been shown to protect against high host in response entities of different forms of periodontitis [22].

D. periodontal disease are mixed infections

1. A. actinomycetemcomitans, P. gingivalis, and so forsythia have been extensively studied and heavily involved etiological risk factors for periodontal disease. All of periodontal infections, however, associated with the called-some bacteria.

2. Periodontal disease is a mixed infection.

For this reason, if it can be useful to think of bacterial soup of different bacteria in the plaque biofilm [2].

E. transfer of pathogens of diseases of parodont)

1. Methods of molecular epidemiology that isolate DNA to provide evidence that periodontal pathogens transmitted. The transfer is the transfer of periodontal pathogens from the mouth of one person to another.

2. The transfer should not be confused with " contagion". There is little or no evidence that periodontal infections are contagious. The term of infectious refers to a disease that can be transmitted from one person to another by direct or indirect contact with substances such as inanimate objects.

3. Studies show that A. actinomycetemcomitans and P. gingivalis strains isolated from parents and children within the same family are exhibited the same restriction endonuclease DNA fragment patterns [12,23-25].

4. Kissing is the primary means by which saliva and its content bacterial transmitted [25-27]. This means that the total contact with saliva families give children and couples who are at risk of periodontal disease have another family member. ..