Record Bases

Question 1

What is the function of record base?

Answer 1

• Support wax occlusion rims
• Faciliatate Maxillomandibular relation records
• Provide base for try-in procedures

Question 2

What is an occlusal rim?

Answer 2

Occlusing surfaces fabricated on interim or final denture base

Question 3

What is the purpose of occlusal rim?

Answer 3

Making maxillomandible relation records and arranging teeth

Question 4

Functions of occlusal rims

Answer 4

• Provide proper support of lips and cheeks
• Aid in orientation of occlusal plane
• Serve as means of transfer of facebow record
• Determine vertical and horizontal jaw relationships

Question 5

What are areas that may require blockout?

Answer 5

• Undercuts
• Frenums
• Rugae
• Irregular soft/hard tissue surfaces
• Redundant soft tissue areas

Question 6

What is the thickness triad should be to facilitate speech?

Answer 6

1-2mm

Question 7

Thick record bases impinge upon tongue space and prevent

Answer 7

patient from articulating speech sounds normally

Question 8

What would be result of thick record bases?

Answer 8

VDO and CR records may be inaccurate

Question 9

Retentive record bases are required for establishing

Answer 9

MMR and verifying phonetics

Question 10

If record base is loose –>

Answer 10

Inaccurate. Check flanges for overextension

Question 11

Dimension of height of occlusal rim maxilla

Answer 11

22mm

Question 12

Width of anterior maxilla occlusal rim

Answer 12

3-5mm

Question 13

Height of mandible occlusal rim

Answer 13

18mm

Question 14

Anterior extension of the wax rim should measure _____ from the incisive papilla

Answer 14

7-9mm

Question 15

Premolar region thickness dimensions

Answer 15

6mm

Question 16

Molar region thickness dimension

Answer 16

8mm