Cariology

Question 1

High surface energy = strong molecular attraction

Answer 1

Surface Energy

Question 2

Rough things have (high or low) surface energy…… Stuff wants to stick to them

Answer 2

high

Question 3

Polished/shiny/smooth things have (high or low) surface energy, stuff wants to slide off of them

Answer 3

low

Question 4

t/f: dental caries is a transmissible disease.

Answer 4

true

Question 5

Dental Caries Requires which of the following? 
◦ SUSCEPTIBLE HOST
◦ BACTERIA
◦ FOOD SOURCE
◦ TIME
◦ All of the above

Answer 5

all above

Question 6

(Which theory is this?)
◦ Biofilm is responsible for the disease ◦ Plaque is pathogenic when disease is present ◦ Specific Microbes are the cause
◦ Strep Mutans
◦ Lactobacillus and Actinomyces V. (acid producers, can live in acid) ◦ Control the pathogens= control the disease

Answer 6

Specific plaque hypothesis

Question 7

• Community of bacteria, bacterial by-products, extracellular matrix, and water
  ◦ Accumulation of biofilm on teeth is HIGHLY ORGANIZED
  ◦ Few microorganisms are able to adhere to oral surfaces
  ◦ Streptococci prominent group

Answer 7

Biofilm

Question 8

Which two bacteria make up Normal saliva biofilm and are not pathogenic

Answer 8

Strep sanguis and Strep mitis

Question 9

T/f: Step mutans begin the lesion and lactobacillus is primarily responsible for progression of caries.

Answer 9

true

Question 10

t/f: The role of genetics in caries formation is about 40% influence.

Answer 10

true

Question 11

t/f: a patient will have an Inflammatory reaction when encroaching on pulp (wihtin 1 mm of pulp

Answer 11

true

Question 12

(does this describe Remin or Demin?)

• Bacteria living in plaque feed off “leftovers” (sugars, fermentable carbohydrates) -Bacterial waste product is ACID
• lactic acid -Acid demineralizes enamel -Phosphates and Calcium are lost

Answer 12

demineralization

Question 13

(does this describe Remin or Demin?)
-Saliva rinses away sugars -Saliva buffers acids -Minerals in saliva (calcium, phosphate) re-enter
tooth -Presence of fluoride facilitates process

Answer 13

remineralization

Question 14

Remineralization Requires which of the following? 
Saliva
Plaque 
Removal 
Diet modification 
Fluoride
All of the above

Answer 14

all above

Question 15

______ buffers ph, flushes away free floating organisms, has salivary proteins that are antibacterial, and contains Ca and Phosphate ions.

Answer 15

saliva

Question 16

What Increases rate of Remineralization
◦ Attracts Ca ions
◦ Ca ions attract phosphate ions

Answer 16

Fluoride

Question 17

pits and fissures are home to mostly ???

Answer 17

Simple streptococcal bacteria

Question 18

Root surface is home to mostly??

Answer 18

◦ Complex bacterial community
◦ Mostly filamentous and spiral bacteria
◦ Additional complication- anatomy of rooth may render hygiene practices ineffective
◦ Unable to reach concavities with floss

Question 19

t/f: Strep mutans initiates lesion

Lactobacilli follows and leads to progression of caries

Answer 19

true

Question 20

t/f: Strep mutans doubles in only 1.32 hours in sucrose

Answer 20

true

Question 21

______ (infected or affected) must be removed
◦ Bacteria present ◦ VERY rarely may leave in order to avoid pulp exposure
◦ Must place indirect pulp cap and seal caries i

Answer 21

infected dentin

Question 22

______ (infected or affected dentin) may remain

◦ Soft, no bacteria present

Answer 22

affected

Question 23

t/f: Acid output in caries active plaque is twice that of caries inactive
plaque

Answer 23

true

Question 24

t/f: Once tooth is cavitated Bacterial (lactobacilli) that adhere poorly are now able to more easily adhere to more retentive
(SURFACE AREA) of cavity

Answer 24

true

Question 25

t/f: Initial Carious lesions
◦ Treat with fluoride varnish, oral hygiene instructions
◦ Non-surgical treatment

Answer 25

true

Question 26

____ ____ is a radiolucency at the bone level (normal bone level). Caries rarely form at a healthy bone level. Mostly would see recession with caries at bone level.

Answer 26

cervical burnout

Question 27

Which model of caries management is described below?

◦ An infectious disease
◦ Diagnosis of a disease
◦ Risk assessment and modification
◦ Disease control and prevention of the disease and absence of disease occurrence
◦ Stop disease progression
◦ Managed and healthy mouth
◦ Prevention of recurrence and minimal replacement, save teeth for life

Answer 27

medical model

Question 28

What is the single best risk predictor for dental caries?

Answer 28

current caries