Biofilm/Calculus

Question 1

Acquired Pellicle

Answer 1

Laid down first after debridement, protective

Question 2

Bacterial Colonization: where?

Answer 2

Gingival/Proximal 3rd

Question 3

Biofilm is a primary risk for:

Answer 3

Caries
Gingivitis
Perio disease

Question 4

Biofilm: Days 1-2

Answer 4

Cocci, major role in caries development

Question 5

Biofilm: Days 2-4

Answer 5

Cocci, aerobic, microscopic inflammation

Question 6

Biofilm: Days 7-14

Answer 6

Vibrios/Spirochetes, Gram -, initial inflammatory response (gram - triggers immune response)

Question 7

Biofilm: Days 14-21

Answer 7

Vibrios/spirochetes, VISIBLE inflammation > gingivitis

Question 8

Biofilm

Answer 8

Structured community is mo’s encapsulated in Extracellular Polymeric Substance [slime layer]

Question 9

Material Alba

Answer 9

Soft, white loosely adherent mass that forms on top of plaque.
Clearly visible, living and dead bacteria.
Easily removed w water.

Question 10

Food Debris

Answer 10

Collects at cervical and proximal

Contributes to caries

Question 11

Unattached biofilm

Answer 11

Gram -, loosely attached, cause periodontal infection

Question 12

Biofilm: Goal

Answer 12

Keep bacteria at a level tolerated by the host

Question 13

Biofilm: Composition

Answer 13

20% organic/inorganic solids

80% water

Question 14

Calculus

Answer 14

Mineralized biofilm

A predisposing factor for pocket development

Question 15

Mo’s + Calculus

Answer 15

In = non-viable 
On = viable

Question 16

Supragingival Calculus

Answer 16

Weakly attached

Saliva mineral source

Question 17

Subgingival Calculus

Answer 17

Gingival sulcus fluid and inflammatory exudate are mineral sources.
Strong, interlocking attachment.

Question 18

Calculus Matrix Crystals

Answer 18

Hydroxyapatite
Whitlockite
Octocalcium phosphate
Brushite

Question 19

Calculus: Goal

Answer 19

Reduce calculus to below tolerance threshold to heal tissue and resolve infection