Lecture 8: Restorative Dentistry

Question 1

What bacteria normally causes tooth decay?

Answer 1

Streptococcus Mutans (S. Mutans)

Question 2

What level of pH environment can a tooth without fluoride normally withstand?

Answer 2

5.5

Question 3

What level of pH environment can a tooth with fluoride normally withstand?

Answer 3

4.5, which is 10 times more acidic than 5.5

Question 4

What is the process of tooth healing called?

Answer 4

Re-mineralization

Question 5

What happens to individuals who have very little saliva production, or who’s salivary glands are damaged?

Answer 5

Within a few months the teeth can be completely destroyed by decay

Question 6

Who is G.V. Black?

Answer 6

Is is considered the father of modern dentistry

–Among other things, he developed a system for classifying restorations in the mouth

Question 7

What is a class 1 restoration?

Answer 7

Occurring in the pits and fissures of the teeth

Question 8

What is a class 2 restoration?

Answer 8

Occurring on the proximal sides of posterior teeth

Question 9

What is a class 3 restoration?

Answer 9

Occurring on the proximal sides of anterior teeth?

Question 10

What is a class 4 restoration?

Answer 10

Proximal sides, anterior teeth, incisal edge, trauma

Question 11

What is a class 5 restoration?

Answer 11

Gum line decay anywhere in the mouth

Question 12

What is a class 6 restoration?

Answer 12

Occurring in the cusps of posterior teeth

Question 13

What is one of the major benefits of the Dr. Black classification system?

Answer 13

It provided guidelines helping dentists to know how wide and how deep a restoration would be

Question 14

What does minimally invasive dentistry mean?

Answer 14

The operating principle that one should attempt to restore a tooth while removing as little tooth structure as possible

Question 15

What is the premier filling material?

Answer 15

Gold

–Its still the gold standard

Question 16

What material is still the primary filler in the United States?

Answer 16

Amalgam

Question 17

What is the least expensive filling material?

Answer 17

Amalgam

Question 18

What are glass ionomers?

Answer 18

A class of restorative material which bonds to the tooth without adhesive

Question 19

What filling material is most often used when performing a restoration near the gum line?

Answer 19

Glass ionomers

Question 20

What is one of the common errors when making/placing crowns?

Answer 20

Inaccurate impressions

Question 21

What is the coping?

Answer 21

The understructure of a crown, often formed from a block of aluminum oxide

Question 22

What is an onlay?

Answer 22

It is similar in function to a crown, but requires less tooth reduction

Question 23

Who is Branemark?

Answer 23

A man who pioneered modern impant dentistry

Question 24

Why is titanium useful as an implant?

Answer 24

It fuses directly with bone

Question 25

What are some of the downsides of implants?

Answer 25

The amount of time required to place and finish an implant procedure is about 4-6 months
–Most insurances don’t pay for implants

Question 26

What information is useful in a cosmetic reconstruction case?

Answer 26

A complete set of radiographs, a careful exam, models and photographs, and interview

Question 27

What is an abutment?

Answer 27

Support teeth for the bridge

Question 28

What is a pontics?

Answer 28

The suspended teeth

Question 29

What are some advantages to a bridge?

Answer 29

It can be completed in a matter of weeks

–Insurance usually covers the cost

Question 30

What is one reason why crowns are used?

Answer 30

The direct forces inwards instead of outwards like a filling