RPD PRELIMS

Question 1

materials used for dentures in the old times

Answer 1

ivory, bone, gold, copper, and teeth of animals

Question 2

branch of surgery or dentistry that deals with the replacement of missing parts with artificial structures

Answer 2

prosthetics

Question 3

an artificial device to replace or augment a missing body part

Answer 3

prosthesis

Question 4

what is stability

Answer 4

the quality of a denture to be firm or stable
helps resit horizontal and rotational stresses

Question 5

what does retention resist

Answer 5

it resist vertical forces, or forces parallel to the path of insertion

Question 6

if a cast is a positive reproduction of the oral cavity what is an impression?

Answer 6

negative reproduction

Question 7

bone covered with soft tissue that covers the underlying area of the denture base

Answer 7

residual ridge

Question 8

undercut is

Answer 8

portion of a tooth located above the gingiv and below the height of contour

Question 10

a line encircling a tooth designating its greatest circumference at a selected position

Answer 10

height of contour

Question 11

height of contour is determined by using

Answer 11

dental surveyor

Question 13

objectives of prosthodontic restoration

Answer 13

elimination of disease, preservation restoration and maintenance of remaining teeth and oral tissues, restoration of oral function, replacement of lost teeth

Question 14

consideration of oral treatment

Answer 14

comfort, oral function, appearance, health

Question 15

types of removable partial dentures based on materials used

Answer 15

a. all resin appliance
b. resin with wire clasp
c. resin with casted clasp

Question 16

types of rpd based on support

Answer 16

tooth supported, tooth-tissue supported

Question 17

interarch difference

Answer 17

maxillary is lost before mandible

Question 18

intraarch

Answer 18

posterior is lost before anterior

Question 19

anatomic consequences of tooth loss are

Answer 19

a. loss of ridge volume due to lack of functional stimulus
b. more boen resorption in the mandible than in the maxilla
c. alveolar bone is replaced with less keratinized tissue
d. changes in facial feature (altered lip support, decrease in vertical height)

Question 20

what happens when there is different jaw size relationship?

Answer 20

difficult pontic placements

Question 21

ability to reduce food to a certain size in a given time

Answer 21

masticatory efficiency

Question 22

4 road diagnostic categories

Answer 22

a. location and extent of edentulous areas
b. condition of the abutments
c. occlusal characteristics and requirements
d. residual ridge characteristics

Question 23

requirements of an acceptable method of classifying

Answer 23

permit immediate visualization of the partially edentulous arch being considered, permit immediate differentiation between tooth and tooth tissue supported rpd, must be universally acceptable

Question 24

bilateral edentulous areas located posterior to teh natural remaining teeth

Answer 24

class I

Question 25

class I and Class II are

Answer 25

distal extensions

Question 25

what is class II kennedy?

Answer 25

unilateral edentulous space located posterior to the remaining natural teeth

Question 26

edentulous space with remaining teeth located anterior and posterior to it

Answer 26

class III

Question 26

class III and IV are?

Answer 26

tooth bound

Question 27

Single but bilateral edentulous area located anterior to the remaining natural teeth

Answer 27

class IV

Question 28

t or f classification can be done even before extractions

Answer 28

false

Question 29

enumerate all the apple gates rules