Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CSAR COPY 225 cards > CSAR 21-24 - Occlusion > Flashcards

CSAR 21-24 - Occlusion Flashcards

1
Q

What parts of the body are involved in occlusion?

A 
Teeth 
Periodontium 
MOM
TMJ 
Neurological system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What programmes dynamic occlusion and how?

A

Central Pattern Generator (CPG)

Adapts into teeth as much as possible, negotiating interferences and hard to change pathway once CPG imbedded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 2 varied movements in functional occluding pathways?

A

Broad (cow like) –> broad wide movement

Constrained (rat like) –> up and down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How may functional occlusion by adapted and not adapted to?

A

Adapted if functional pathway restored
Can adapt through tooth wear or loosening of teeth
No adaption when incorrect guidance or palatal surfaces are too convex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Define fremitus.

A

When bite together and tooth moves out of the way

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What methods can be used to increase inter-occlusal space?

A

Prep - occlusal reduction
Relative axial tooth movement - Dahl concept - used for cracked tooth syndrome
(Ortho)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What static occlusion goals want to be achieved?

A

Simultaneous bilateral stable posterior contacts apically directed, protecting anterior teeth from splaying
Want cusp fossa relationship

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What dynamic occlusion goals want to be achieved?

A

Smooth gliding excursive movement - canine/group function

Want immediate separation of anterior teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the movements of the condyle in lateral excursion?

A

WS –> rotation

NWS –> orbit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the condylar movements in jaw opening?

A

20mm of opening - hinge opening

Condyle then translates down articular eminence to open further

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is a 1.Arcon and 2.Non-arcon articulator and their use?

A
  1. Articulated condyle (e.g.Whipmix) - common in fixed pros to replicate hinge movement of mandible and for changes in OVD
  2. Non-articulated condyle (e.g.Dentatus) - used for removable pros
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Why is a face bow used for a semi-adjustable articulator?

A

Facebow allows maxillary casts to be in relation to the condyles in dynamic occlusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Why is dynamic occlusion inaccurate from a simple hinge articulator?

A

Simple hinge rotation axis not anatomical - it is lower down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What face bow is used for a fully adjustable articulator (unnecessary accuracy)?

A

Kinematic record - true hinge axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What face bows are used for a semi adjustable articulator (sufficient accuracy)?

A

Earbow record - arbitrary hinge axis

Kois Dento-Facial Analyser - arbitrary hinge axis with average values

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does the Kois face bow measure?

A

Facial midline and aesthetic plane

17
Q

What is the difference between 1.conformational and 2.reorganisational approaches with occlusion?

A
  1. Fitting in with existing occlusion and ICP
  2. Where original ICP can not be used due to lack of inter-occlusal space: worn dentition, missing teeth (no replacement = dento-alveolar compensation) and complete overbite patient
18
Q

What reference point is used when reorganising the occlusion?

A 
New reference point 
Centric relation (seated condyle) is always a reproducible position as it is joint position and nothing to do with teeth
19
Q

What is RCP?

A

Tooth to tooth position

First contact of teeth when condyles are in centric relation (on the retruded arc of closure)

20
Q

How does a pt go from RCP into ICP?

A

90% of people slide from RCP to get their teeth to maximally interdigitate into ICP

21
Q

When is the RCP-ICP slide changed?

A

To gain anterior space by changing OVD

Preparing tooth involved in slide, most commonly last tooth in arch (7)

22
Q

If a large horizontal slide, not planned, what can happen due to the changed RCP?

A

Muscles deprogramme/relax
Neuromuscular functional pathway lost
Condyles seat into centric relation
Mandible drops back and can lead to increased OJ/ anterior open bite

23
Q

What are the manipulation techniques of finding centric relation?

A

Bimanual
Chin point
Schuyler technique - tongue to roof of mouth - reproducible

24
Q

What are the anterior midpoint stop appliances of finding centric relation?

A

Lead gauge - block for anterior teeth to bite on, therefore back teeth out of occlusion, allows slide
Kois deprogrammer
Gothic arch tracing - when missing lots of teeth

25
Q

How is centric relation recorded?

A

Teeth apart, not in RCP

Beauty hard wax or silicone reg material (Blu Mousse) used

26
Q

What is distalising the mandible and equilibrating it?

A

What to put patient into centric relation
To gain anterior space by utilising a horizontal slide
Equilibrating by tooth preparation, therefore RCP=ICP

27
Q

What bur is used to removed ceramic crown?

A

Diamond

28
Q

What bur is used to removed metal crown?

A

Tungsten-carbide

CSAR COPY 225 cards (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions