Occlusion 3

Question 1

How can you get a really thorough recording of the occlusion?

Answer 1

Mount casts on a semi-adjustable articulator

Question 2

What face-bows are commonly used in the glasgow dental hospital?

Answer 2

Denar Slidematic Facebow

Question 3

What are the different parts of a face-bow?

Answer 3

• reference plane locator
• bite fork
• transfer jig assembly
• warble

Question 4

what are the steps of doing a face-bow registration?

Answer 4

• mark the anterior reference point
• bite registration using the bite fork
• assemble the earnie and transfer jig

Question 5

Where is the anterior reference point when doing a facebow registration?

Answer 5

43mm apical to the incisal edge of anterior teeth
- approximate position of the infraorbital foramen

Question 6

What should a facebow be parallel to?

Answer 6

The floor/interpupillary line

Question 7

What are the options for recording an ICP registration?

Answer 7

• NO material (plenty of tooth contacts, ICP is obvious to technician)
• WAX
• PASTE
• RECORD BLOCK (free end saddles)

Question 8

What will occur if you use too much registration paste?

Answer 8

OVD will be increased

Question 9

What is the confirmative approach in relation to occlusion?

Answer 9

The provision of restorations in harmony with the existing jaw relationships
- occlusion of new restoration ensures that the occlusal contacts of the other teeth remain unaltered
- simple approach

Question 10

When do we not use the confirmative approach in occlusal restorations?

Answer 10

• an increase in vertical height is needed to make space for restorations
• tooth/teeth significantly out of position
• a significant change in appearance is wanted
• history of occlusally related failure or fracture of existing restorations