Midterm Exam Review

Question 1

What is an Inlay?

Answer 1

-does not include any cusps
-involves the proximal surface and occlusal surface
-stronger than a resin/amalgam restoration
- can be made out of metal (gold or porcelain
-placed in posterior

Question 2

What is an Onlay?

Answer 2

• cusps are involved
  -involves atleast one cusp, and most of the occlusal surface
  -stonger than a resin/amalgam restoration
• can be made out of metal (gold or porcelain)
  -placed posterior

Question 3

What is the main difference between an Inlay and Onlay?

Answer 3

Inlay does not include any cusps
Onlay involves atleast one cusp and most of the occlusal surface

Question 4

What is a Veneer?

Answer 4

a thin shell of a tooth-coloured material. Used to improve esthetics due to chipping, excessive wear, heavy staining, close diastema spacing

Question 5

What are the 2 types of veneers available?

Answer 5

Direct veneer - created directly in the patient’s mouth by applying resin material to facial surface

Indirect Veneer - created in the dental laboratory on the basis of an impression taken of the prepared tooth. PORCELAIN material is used, NOT resin

Question 6

What is a Crown?

Answer 6

-indirect restorations that replace severe damaged tooth structure due to decay or fracture.

• often done after root canal treatment.
• cemented permanently into place and cannot be removed by the patient

-provides full coverage, adds strength to teeth

Question 7

What are the 3 types of crowns?

Answer 7

Full Crowns (completly covers tooth)
Three-quarter Crown
Porcelain Fused to Metal (PFM)

Question 8

When is a full crown used?

Answer 8

When a tooth has decay so severe, or a fracture that reconstruction can not be preforme dwith the use of a direct restoration

Question 9

What is a three-quarter crown?

Answer 9

Covers the anatomic crown of a tooth but facial or buccal portion is unchanged

Question 10

What is a PFM Crown?

Answer 10

• full metal crown with outer surfaces covered with a layer of procelain (for esthetic reasons) and inner layer covered with metal
  -metal is added for strength and to prevent crown from fractures ue to heavy mastication

Question 11

What is a bridge?

Answer 11

• an indirect restoration that replace either one or multiple teeth that are missing within the same quad or sextant
  -consists of a series of units joined together for greater strength
  -cemented permanently into place and cannot be removed by patient

Question 12

What are the three components of a fixed bridge?

Answer 12

Unit
Pontic
Abutment

Question 13

What is the Unit of the bridge described by?

Answer 13

The unit of the bridge is described by the total number of teeth involved in the fabrication

Question 14

What is the Pontic of the bridge?

Answer 14

The missing tooth/artificial tooth is referred to as the Pontic

Question 15

What is the Abutment of a bridge?

Answer 15

The tooth anchoring the bridge is referred to as the abutment.

• tooth must be stable enough to withstand bridge forces

Question 16

How is the Abutment tooth prepared?

Answer 16

Outer layer of enamel will be removed, tooth will be reduced in size all circumference (all directions) by use of dental high-speed handpiece and bur.

Question 17

What is a cantilever bridge?

Answer 17

-does not have an abutment on one end
-various materials can be used including metal/gold porcelain

Question 18

What is a maryland bridge?

Answer 18

-consists of a pontic with wing like extensions from the mesial and distal sides on LINGUAL
-bonding of extensions to the lingual surfaces of the adjacent teeth supports the point.
-various materials can be used including metal, gold, or porcelain

Question 19

What is an implant supported indirect restoration?

Answer 19

refers to artificial “root” replaced with the titanium component.

-titanium is anchored surgically into the bone.

• incorporates principles from both fixed and removable prosthodontics in conjuction with the use of bone-anchored implants

Question 20

What are Endosteal implants?

Answer 20

• implant is surgically placed into the jawbone
  -for one or more prosthetic teeth
  -typically used for patients requiring a crown, bridge, or partial and full denture

Question 21

What is a Subperiosteal implant?

Answer 21

is a metal frame that is palced under the periosteum and on top of the bone
- NOT placed into the bone
- indicated for patients who do not have enough alveolar ridge remaining

Question 22

What is a Transosteal implant?

Answer 22

is inserted through the inferior border of the mandbile and into the edentulous area

• primarily used in patients with severely resorbed ridges

Question 23

This describes a stable tooth to support the bridge

Answer 23

Abutment

Question 24

This word is used when describing the number of teeth involved in the bridge

Answer 24

Unit

Question 25

This restoration is offered to close the gap between the teeth - it calls itself the fifth wheel

Answer 25

cantilever

Question 26

This restoration is offered to close the gap between the teeth

Answer 26

maryland

Question 27

This describes a missing tooth within the bridge

Answer 27

pontic

Question 28

This type of restoration is offered when cusps are involved

Answer 28

onlay

Question 29

This type of restoration is offered when cusps are not involved

Answer 29

inlay

Question 30

This tin shell of tooth-coloured material witll be placed on anterior teeth

Answer 30

veneer

Question 31

when entire tooth is reduced in shape, dentist will call this restoration a ____

Answer 31

crown