Jaw Registration Completes

Question 0

What can you use if you want to keep the labial profile of the upper denture the same as the old?

Answer 0

Alma gauge

Question 1

What is the purpose of thr bite stage?

Answer 1

Create correct outline of the upper denture
Record Intermaxilliary relations
Select tooth

Question 2

Which rim do you trim first?

Answer 2

Upper

Question 3

What do you adjust first on the upper Rim?

Answer 3

You must trim the occlusal height to ensure OVD and RVD are correct
This should be done with the lower in situ

Question 4

How should the RVD be obtained?

Answer 4

With only the lower denture in situ

Question 5

Once you have adjusted the OVD and RVD what is next on the upper denture?

Answer 5

Post dam
Trim the labial support and restore vermillion border. Should be 1-2mm tooth at rest showing
Adjust occlusal plane using fox guide plane and ensure posterir teeth are parallel to ala tragal line and the anterior teeth are parallel to inter pupillary line
Mark centre lines and canine
Form buccal corridor

Question 6

Once you have adjusted the upper rim what is next?

Answer 6

Trim the lower to fit around the upper rim so that been contact in RAC at correct OVD
Ensure both rims are in neutral zone

Mould and shade of teeth

Question 7

T/F there should be a gap between the Lower rim buccal surfaces and the cheek?

Answer 7

F

Question 8

How do you record the relationship?

Answer 8

CJR

Cut V notches on the upper rim in the premolar molar region and then place softened wax on the lower and then bite down

Question 9

What type of occlusion are complete dentures set up in?

Answer 9

Balanced occlusion and balanced articulation
Even contact in all excursions
Maximum intercuspation
Acceptable OVD

Question 10

What are the five factors when considering the posterior occlusion in compete dentures?

Answer 10

Hanus quint

Incisal guidance angle
Condylar guidance angle
Orientation of occlusal plane
Cusp Angulation
Slope of compensating curve

Question 11

What is the incisal guidance angle commonly set to?

Answer 11

10/15

Question 12

Condylar angles are usually set to what?

Answer 12

30 degrees

Question 13

How is the occlusal plane set?

Answer 13

By trimming the upper occlusal rim

Ie by the clinician

Question 14

What are the cusp angles set to?

Answer 14

Usually set to 20’degrees

Question 15

What is the compensating curve?

Answer 15

The technician will introduce this when setting up the teeth and is more of a concern for non anatomical teeth,
The aim is to mimic the curve of spee and monson that exist in the natural dentition

Question 16

How should you trim the cusps of the teeth?

Answer 16

BULBuccal upper lower lingual

Question 17

What is posselts envelope?

Answer 17

3D depiction of the mandibular movement capacity

Question 18

What is the upper border of posselts limited by?

Answer 18

Tooth contact

Question 19

What does 3 refer to on posselts?

Answer 19

Maximum protrusion

Question 20

What is the line drawn from 1 through to 3 indicate on posselts?

Answer 20

Protrusion guidance

Question 21

What does ICP indicates?

Answer 21

Maximum intercuspation

Question 22

What does RCP indicate?

Answer 22

Retruded contact position

Question 23

What does RCP to 5 indicate?

Answer 23

Retruded arc of closure

Rotational opening about the terminal hinge axis

Question 24

What does 4 indicate?

Answer 24

This is where there Maximila opening of the jaw

Question 25

Which line dictate the normals arc of oelning and closing?

Answer 25

ICP to 4

Question 26

What is along the ICP to 4?

Answer 26

Rest position

Question 27

What is RCP to ICP?

Answer 27

Slide down defective contact

Question 28

What are the feature of occlusion in natrual teeth?

Answer 28

RCP to ICP is about 1mm difference On protrusion there is posterior disclusio Laterally: canine guidance or group function Non working side interferences

Question 29

Before inserting the denture what should you check?

Answer 29

Fit surface Any sharp projection Overextension into any boney or soft tissue undercuts Pressure points

Question 30

How can you asses the support?

Answer 30

Press on the occlusal surfaces of the premolars and assess for any pain or use a cotton wool roll and ask patient to bite

Question 31

What can you use to check retention of lower denture?

Answer 31

Probe test

Question 32

What may an excess OVD results in?

Answer 32

This is insufficient FWS 1. Increases trauma to tissues 2. Clicking of teeth during speech 3. Speech problems and difficulty bringing lips together 4. Painful mucosa 5. Poor aesthetics 6. Muscle soreness mainly mass esters 7. TMDJS

Question 33

What happens if there is insufficient OVD?

Answer 33

Pateint looks over closes Lackvof support for angles of mouth: angula chelitis Reduced masticatory effeciency Poor aesthetics

Question 34

What is the AP relation for the the Intermaxilliary relationship in denture?

Answer 34

ICP should be equal to RCP: otherwise this will lead to movement and disrupt peripheral seal

Question 35

How can you assess the occlusal plane?

Answer 35

Anterior plane: needs to be parallel to the inter pupillary line Posterior plane: parallel to ala tragal line Plane of mandibular teeth:tongue should ideally overly he lingual aspects of the lower teeth to aid stability

Question 36

What are the three relationships of the mandible to the maxill?

Answer 36

Mandible in rest position Mandible in retruded Dynamic

Question 37

What are the factors that will affect the mandible rest position?

Answer 37

``` Head position Loss of teeth Denture or other items in mouth Emotional tension Medial conditions Drug therapy ```

Question 38

Why is the centric relation good to record?

Answer 38

It is a jaw relationship and not tooth this it is reproducible

Question 39

When is CJR necessary?

Answer 39

When there are the no inter occlusal stops

Question 40

What do we use to record the CJR?

Answer 40

Wax rim and baseplate

Question 41

What are the temporary bases?

Answer 41

Thermoplastic resin: PMMA light cured and auto polymerisable VAccum formed PVA Baseplate wax

Question 42

What are the permanent bases made from?

Answer 42

Processed resin | Cast alloys eg CoCr

Question 43

What are the requirements for occlusal rims?

Answer 43

Well adapted to master cast Stable on cast No more than 1mm thick over the residual ridge 2mm thick in post dam area 2mmthick in lingual flange area of lower Easily removed from cast Smooth and rounded Constructed in materials that are dimensionally stable in mouth