OPTION 1

 

•            Tannerella forsythia is an anaerobic gram-negative member of the Cytophaga- Bacteroides family.

•                           Tannerella forsythia is associated more frequently and/or in higher levels with various forms of the disease, including gingivitis, chronic and aggressive periodontitis, than with health.

•                           Tannerella forsythia has been implicated in the progression of clinical attachment loss associated with periodontitis.

Key concept:

Tannerella forsythia

•            Nonmotile, spindle shaped, highly pleomorphic rod

•            Gram negative obligate anaerobe

•            Grows slowly only in anaerobic conditions and needs several growth factors from other species.

•            Produce several proteolytic enzymes that are able to destroy immunoglobulins and factors of the complement system.

•            Induces apoptotic cell death.