Quiz 2

Question 1

Acrylic resin prone to

Answer 1

Fatigue and impact fracture

Question 2

Fractures caused by

Answer 2

Impact
Fabrication errors
Excessive loading

Question 3

Continuous residual ridge resoprtion of the maxilla

Answer 3

Flexure around midline-leads to stress concentration

Question 4

Most denture fractures happen

Answer 4

In the maxillary

Question 5

Most common type of fracture

Answer 5

Midline fracture/crack of Maxillary CD

Question 6

Midline fracture/crack of Maxillary CD caused by

Answer 6

Residual ridges resorb and remodel palatal bone does not resorb —> increased stress concentrations in middle of CD causes fracture initiation at midline

Question 7

Solution to Midline fracture/crack of Maxillary CD

Answer 7

Metal reinforced acrylic denture base

Question 8

Cause of debonding/fracture

Answer 8

Impact

Inadequate bonding of tooth to denture base—contamination during processing

Question 9

Indications for Immediate CD

Answer 9

Failing permanent dentin due to generalized caries, PD, or malocclusion

Cooperative phjilispciual and socially active patients

Patients who want to maintain their appearance

Patients who have available time and can afford to cost

Question 10

Contraindications for immediate CDs

Answer 10

Patients who are in poor overall health

Patients with uncontrolled systemic conditions

Exacting and or indifferent patients

Patients with unrealistic expectations and time schedules

Patients that exhibit restorable periodically stable teeth

Question 11

The splinting and compression action

Answer 11

Promotes rapid healing as it protects the blood clot and stimulates proper ridge contours

Question 12

Immediate Disadvantages

Answer 12

Lack of denture retention day of insertion

Constant need for reclines using tissue conditioners

Multiple post insertion adjustment visits

The iCD cannot by fully assessed until it is seated

Not a covered dental insurance benefit

Question 13

Inability of an esthetic try in of the proposed denture tooth arrangement making the ethic outcome highly

Answer 13

Unpredictable

Question 14

Wax rims establish

Answer 14

VDO and horizontal relationships of maxilla mandible and guide tooth position

Question 15

The difficulty lies in

Answer 15

Making accurate recorders at the correct VDO at a repeatable position

Question 16

Single phase surgical

Answer 16

Extract all remaining teeth insert interim complete

Question 17

Double Phase surgical

Answer 17

Extractions are staged and posterior removed first

Allow posterior to heal and stabilize

Leave one definitive tooth contact on each side (1st PM maintain VDO)

Question 18

Custom trays for ICD must have

Answer 18

2 mm clearanace for the broader molding material

Tray border must be smooth round and 2 mm thick all around

Question 19

Appropriate extentin will reduce

Answer 19

Chair side adjustments

Question 20

____ are key to successful impression

Answer 20

Borders

Question 21

Elastometic impression materials are more

Answer 21

Rigid than alginate and may be once locked in pits mouth

Question 22

Custom trays + PVS+ Undercuts+ perio D.=

Answer 22

Inability to remove impression once it has set

Question 23

Record base and rims establish

Answer 23

Facial contours by providing proper support of the lips and cheeks

VDO

Question 24

Record base and rims aid

Answer 24

In opritention of the occlusal plane

Tooth selection and antior tooth placement

Question 25

Record base and rims serve as

Answer 25

A means of transfer of the face bow record

Question 26

Record base and rims necessary for

Answer 26

Making stable interocclusal records