Lecture 10 - Microbiology of Periodontal diseases

Question 1

T/F
chronic periodontitis rapidly progresses
aggressive periodontitis slowly progresses

Answer 1

F
F
(opposites)

Question 2

Which type of periodontitis are common for adults? for children?

Answer 2

chronic

aggressive

Question 3

what is the primary defense against bacteria in sulcus?

Answer 3

neutrophils

Question 4

what is released from biofilm that invade connective tissue and possibly epithelial cells?

Answer 4

planktonic bacteria/microcolonies

Question 5

T/F
Tissue invasive bacteria…..
———activate osteoclastic activity
———block osteoblastic activity

Answer 5

F - they prolong osteoclastic activity

T

Question 6

T/F bacterial species in periodontal pocket….

• —-are saccharolytic
• —-are only gram negative

Answer 6

F - they are proteolytic

F - they are gram + and -

Question 7

which bacteria are in the red complex?

Answer 7

porphyromonas gingivalis (PG)
tanerella forsythia (TF)
treponema denticola (TD)

Question 8

which species are associated with LAP?

Answer 8

aggregatibacter actinomycetemcomitans

Question 9

T/F
periodontal pathogens are very transmissible between spouses
periodontal pathogens are transmissible by lifestyle choices like smoking and poor oral hygiene

Answer 9

F - they are not very transmissible between people

T