jaw relation records

Question 1

what is the main component in the recording procedure?

Answer 1

occlusion rims

Question 2

classification of jaw relations

establish the reference in the cranium

Answer 2

orientation

Question 3

classification of jaw relations

establish the amount of jaw separation allowable for dentures

Answer 3

vertical

Question 4

classification of jaw relations

establish the front-to-back and side-to-side relationships of one jaw to the other

Answer 4

horizontal

Question 5

Depict a sufficiently accurate relationship for
diagnostic and restorative procedures.

Answer 5

arbitrary facebow

Question 6

caliper like device that is used to record the relationship of the jaws to the TMJs or the opening axis of the jaws and to orient the casts in this same relationship to the opening axis of the articulator

Answer 6

face-bow

Question 7

is one in which all points within a body describe concentric circles around a common axis

Answer 7

rotational movement

Question 8

in which all points within a body are moving at the same velocity and in the same direction

Answer 8

translatory movement

Question 9

what is the basis for recording centric relation in complete denture

Answer 9

posterior terminal hinge movement

Question 10

distance of gap between the upper and lower teeth when the mandible is in the physiologic rest position.

it is usually 2mm to 4mm when observed at the position of the first premolars

Answer 10

interocclusal distance (leeway space)

VDR(?)

Question 11

established by the natural teeth when they are present an in occlusion.

in edentulous cases, it is established bu the vertical height of the two dentures when the teeth are in contact

Answer 11

vertical dimension of occlusion

VDO

Question 12

two methods of determining the vertical dimension

Answer 12

mechanical methods

physiological methods

Question 13

a method in which using a preextraction records and measurements

Answer 13

mechanical methods

Question 14

a method which use the physiological rest position, the swallowing phenomenon, and phoenetics

Answer 14

physiological methods

Question 15

is a stable landmark that changes comparatively little with resorption of the alveolar ridge.

Answer 15

incisive papilla

Question 16

what is the average distance between the papilla from the incisal edge of the mandibular anterior teeth

Answer 16

4mm

Question 17

average mm of the incisal edge of the maxillary central incisor to the incisive papilla

Answer 17

6mm

Question 18

the vertical overlap of the opposing central incisors is about _mm

Answer 18

2mm

Question 19

the part of the facebow that’s in contacvt with the skin over the TMJs are the ____

Answer 19

condylar rods

Question 20

the part of the facebow that attaches to the occlusion rims is the ___

Answer 20

fork

Question 21

attaches to the face-bow by means of a locking device which also serves to support the fae-bow

Answer 21

bite fork

Question 22

A position where the upper and lower teeth are in maximum contact with each other, providing the most stable occlusal relationship. It is the habitual bite position used during chewing and swallowing.

Answer 22

intercuspal position (ICP)

Question 23

The position where the mandible is retruded (moved backward) and the condyles are in centric relation

Answer 23

retruded contact position

Question 24

The furthest forward position of the mandible, achieved when the lower jaw moves anteriorly as far as possible, typically limited by the TMJ and the surrounding muscles.

Answer 24

maximum protrusion

Question 25

The widest separation between the upper and lower teeth, achieved by fully depressing the mandible. It represents the greatest extent of mouth opening and is often measured to assess joint and muscle function.

Answer 25

maximum opening