Pre-prosthetic mouth preps

Question 1

T/F it is okay to proceed with prostho treatment even if patient is experiencing pain

Answer 1

F, needs to be managed first

Question 2

types of pain according to International Classification of Orofacial Pain (ICOP)

Answer 2

-orofacial pain attributed to disorders of dentoalveolar and anatomically related structures
-myofascial pain
-TMJ Pain
-lesions or diseases of cranial nerves
-resembling presentations of primary headaches
-idiopathic (CNV unknown etiology)
-psychosocial

Question 3

recommended restoration for endodontically treated tooth used as abutment

Answer 3

full crown with endodontic post and core

Question 4

T/F guide planes can be done to improve esthetics

Answer 4

T eg. hide triangular space in anteriors

Question 5

where on the tooth should proximal plate be placed

Answer 5

ideally on the survey line

Question 6

what to do if retentive arm and reciprocal arm are not at the same level

Answer 6

-make lingual guide plane
-recontour survey line and lower it to make reciprocation more effective

Question 7

depth of undercut needed for base metal alloy, gold, and wrought wire

Answer 7

0.01in
0.02in
0.03in

Question 8

what bur to use when preparing undercut dimple

Answer 8

3 (1.2mm so punch only 1/3 to 1/4 of cutting surface)

#4

Question 9

tooth surface modification for retention when you cannot trim tooth

Answer 9

retentive composite lugs

Question 10

rationale for rest seat preparation

Answer 10

-provide occlusal clearance
-direct forces along long axis of tooth

Question 11

shape of conventional occlusal rest seat

Answer 11

rounded triangular outline form, spoon-shaped, rounded floor

Question 12

occlusal reduction for onlay rest

Answer 12

<0.5mm

Question 13

T/F if abutment crown is restored with crown, preps can be done on crown later

Answer 13

F, incorporated into design of crown (surveyed or milled)