Prostho Q&A

Question 1

occlusion can be control by the dentist

Answer 1

Occlusal plane
Compensating curve
Incisal guidance

Question 2

can not control by the dentist

Answer 2

Bennett movement
Condylar path

Question 3

hardest & strongest pxide known

Answer 3

Alumina (Al2O3)

Question 4

shape of the marginal aspect of a tooth or a restoration & relates to the angulation of the tooth or restoration as it emerges from the gingiva

Answer 4

Emergence profile

Question 5

most obvious error of the emergence profile of a crown

Answer 5

Overcontouring

Question 6

Overcontouring & poor emergence profile are due primarily to

Answer 6

1. inadequate tooth preparation
2. improper nandling of materiala
3. inadequate communication between the dentist & technician

Question 7

most imp. fx in determining the success bilateral , free end mand. RPD

Answer 7

Proper coverage of residual ridges
cover should extend over retromolar pad to create stability of the RPD & to minimize torquing forces on the abutment teeth

Question 8

indirect retainer

Answer 8

prevent dislodgement of the RPD toward the occlusal plane

Question 9

ideal positioning of the indirect retainer is

Answer 9

firthest point from the distal border of the free end saddle

Question 10

adv. of constructing a stress breaking attachment next to a free end saddle is to

Answer 10

relieve torquing forces on abutment teeth that have been periodontally comprised

Question 11

preconsteructed w/ M & F portions that fit together in a precise fashion w/ little tolerance

Answer 11

Precision attachment

Question 12

cast into the crown & RPD
female- plastic into the wax & then cast
male- RPD framework

Answer 12

Semiprecision attachment

Question 13

unilateral RPD can be used however when a single tooth is replaced & abutment teeth are on either side of the replacement tooth

Answer 13

Nesbitt Appliance

Question 14

Importance of PPS

Answer 14

completed the entire peripheral sealing aspect of a max. denture

Question 15

Most critical area to capture in an imoression is

Answer 15

Mucogingival fold above the maxillart tuberosity area

Question 16

most important aspect of vertical dimension is to establish the

Answer 16

Freeway space s sound normally 1-2mm

Question 17

steep overbite & narrow overjet

Answer 17

steep cuspal incline

Question 18

small overbite & wide overjet

Answer 18

monoplane

Question 19

greatest degree of hardness & best withstand wear
brittle , difficult to chhange / adjuct
low mechanical bond strength

Answer 19

Porcelain

Question 20

least resistant to wear
easy to wear easy to change
best bond strength to thendenture base

Answer 20

Acrylic

Question 21

hardness & strength values between porcelain & acrylic
bond well to denture base & be adjusted easily

Answer 21

Composite

Question 22

transitional dentire is inserted

Answer 22

Surgical stent

Question 23

potential space between the lips & cheeks on one side & the tongue on the other

Answer 23

Neutral zone

Question 24

main purpose of splinting roots in atooth borne is

Answer 24

Dissipate the forces . minimizing the torque on thr existing rootd

Question 25

Splinting

Answer 25

1. Paralleling
   2, amount of freeway space
   3, placemnt of bar to ridge
   4.type of bar