DT5 Tooth deposits

Question 1

Biofilm

Answer 1

aka plaque
a thin, film of bacteria that adheres to a surface
. E.g. inside of waterlines at the dental chair side

Question 2

How does biofilm form?

Answer 2

a protein film that adheres to the tooth surface. acquired pelicale

Question 3

Where does biofilm form

Answer 3

everywhere in the oral cavity!

tongue, saliva ducts on retainers or night guards and even the roof of the mouth

Question 4

Disclosing agents

Answer 4

help to see where the biofilm is hiding. (temporarily) stain biofilm

Question 5

untreated Biofilm

Answer 5

leads to to caries or gingivitis and even periodontitis and bone loss. leads to halitosis

Question 6

Bone Loss

Answer 6

occurs as a result of prolonged periodontitis

Question 7

Dental caries

Answer 7

10 day supragingival biofilm (above gumline)
first symptom of gingival inflammation
cause gum bleeding

Question 8

Gingivitis

Answer 8

inflammation of gingiva

can be reversed

Question 9

Periodontists

Answer 9

inflammation of periodontal tissues

cant be reversed

Question 10

Biofilm removal

Answer 10

Brushing & flossing
Dental polishing
Not by rinsing

Question 11

Materia Alba

Answer 11

“white material”, easily removed
looks like cottage cheese.
Visible without the use of a disclosing agent.
Forms over bacterial Biofilm
poor oral hygiene.

Question 12

Food debris

Answer 12

leads to unsanitary oral condition

brushing and flossing prevent calculus buuldup

Question 13

Food impactions

Answer 13

Forceful wedging of food into the periodontium by occlusal forces.

Question 14

Calculus

Answer 14

a.k.a “tartar”, “scale”
“calcium deposit”
Minerals (calcium and phosphate salts) in saliva form tartar
hardened porous rough

Question 15

Formation of calculus

Answer 15

Biofilm (plaque) can harden into calculus( 24-36 hours. )

scraped away with special instruments from the hygienist or dentist.

Question 16

Supragingival Calculus

Answer 16

surface above gumline

forms everywhere in mouth

Question 17

Stains What are the 2 types of stains

Answer 17

any discoloration of a tooth surface

1. intrinsic 2. extrinsic

Question 18

intrinsic stains and examples

Answer 18

internally Stains 
cannot be removed
Example s of internal stains 
1.Dental fluorosis .
2.Imperfect tooth development.
3.Silver amalgam.
4.Tetracycline antibiotics

Question 19

extrinsic stains

Answer 19

outside of the tooth surface
CDA can removed by polishing by prophy cup 
Examples of extrinsic stains 
1.Black Line stain 
2.Tobacco stain 
3.Beetlnut stain
4.Food and drink stain
5.Disclosing solution