Intro Occlusion 4

Question 1

how to trim casts (for mounting) what do u clean

Answer 1

remove boxing wax (contaminates trimming wheel–)

wet cast, put on safety glasses

trim

rinse trimming wheel with water, spray for 10 seconds

clean platform and shield

Question 2

average value vs non average value

Answer 2

average value stimulates mandibular movement better than non average value
more closely similar to patient bite etc

non average; poor lateral movement results; ridges and grooves would be incorrect

Question 3

3 types of articulators

Answer 3

non adjustable, semi adjustable, fully adjustable

Question 4

whats a kinematic facebow

WHEN

Answer 4

has hinge axis location; as opposed to arbitrary which have ear pieces. hinge axis located, facebow aligned, maxillary cast transferred based on hinge axis.

technique sensitive

only if changing vertical dimension of occlusion (?)

Question 5

whats the kois dentofacial analyzer a combination of (2 things)

Answer 5

1. esthetic cross reference (line down vertical of face, with bite/ a horizontal line too (all on the front of facial plane).. stick bite
2. fox plane dentofacial analyzer : a horizontal component which extends back on cheeks (& eye level too?)

(SLIDE 13)

Question 6

measuring condylar guidance: what 4 things can be used

Answer 6

1. eccentric records ( protrusive, right and left lateral)
2. mechanical pantographs
3. electronic pantographs
4. stereograms (3d info that can be applied to articular like we use?)

slide 16

pantograph measures jaw movement

Question 7

in laterotrusion describe change of canine relationship- incisal guide

wheres the pin during edge to edge in incisal guide table

Answer 7

in MI (with ideally a small FHO, large VO) ,
first theres a “ramp”, as they glide ,, then edge to edge
beyond the canine, the teeth are separated?

using a ramp/showing it

pin in edge to edge is flattened elevated region– slide22

Question 8

whats a incisal guide table (general) , whats custom

Answer 8

can be mechanical or custom incisal guide table

preserve info on FHO, VO, OJ

SLIDE 20

custom; putty used !
LOOK AT PUTTY FOR PROTRUSION TOO!– incisal guide TABLE

Question 9

mechanical incisal guide table

Answer 9

slope/lingual contour middle; straight middle incisal guide for protrusion

2 wings provide guidance in right/left lateral

red/silver ( pics at end of lec)