Introduction to Partial Dentures

Question 1

name two extra oral consequences of missing teeth

Answer 1

change in facial appearance
TMJ problems

Question 2

name three intra-oral consequences of missing teeth

Answer 2

alveolar resorption
tooth movement
tooth wear

Question 3

what acrylic is used in dentistry

Answer 3

polymethylmethacrylate

Question 4

what is kennedy classification I

Answer 4

missing all posterior teeth (both sides)

Question 5

what is kennedy classification II

Answer 5

missing just posterior teeth on one side

Question 6

what is kennedy classification III

Answer 6

missing posterior teeth but bounded saddle (teeth in front and behind the missing ones)

Question 7

what is kennedy classification IV

Answer 7

saddle area space crosses the midline

Question 8

what is craddock class I

Answer 8

saddle supported on both sides by substantial abutments (tooth borne)

Question 9

what is craddock class II

Answer 9

saddle supported by soft tissues (mucosa borne)

Question 10

what is craddock class III

Answer 10

tooth supported and mucosa supported

Question 11

what four tests would you want to test the health of an abutment tooth

Answer 11

EPT
thermal test
6PPC
clinical photographs

Question 12

what is meant by support in dentures

Answer 12

resistance from vertical movement of the denture towards the tissue

Question 13

what is meant by retention in dentures

Answer 13

resistance to displacement of the denture away from the tissue

Question 14

what is meant by stability in dentures

Answer 14

resistance to horizontal movement of the denture

Question 15

can a simple hinge articulator reproduce movements of the mandible

Answer 15

no

Question 16

what is the average value of the condylar guidance on an average value articulator set at

Answer 16

30 degrees