Record Base Question and answers correctly solved 2024/2025
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Course
BOXING AND EXPRESSION
Institution
BOXING AND EXPRESSION
Record Base Question and answers correctly solved 2024/2025 Record Base, Occlusal Rims, Final Impressions, Boxing Impressions and Fabricating Master Casts
why do we use the Vacuum-Mixer to pour stone? - correct answer air is being pulled out, have less chance of air bubbles in the mix/denser m...
Record Base, Occlusal Rims, Final
Impressions, Boxing Impressions and
Fabricating Master Casts
why do we use the Vacuum-Mixer to pour stone? - correct answer ✔air is
being pulled out, have less chance of air bubbles in the mix/denser mix of
stone
mix under vacuum in vacumix for how many seconds? - correct answer ✔20-
30 seconds
what are the 3 reasons we use tissue stops? - correct answer ✔1. have an
even thickness of material to get more accurate impression (main reason)
2. preventing pressure anywhere but where the tissue stops are and the
periphery of the denture where we want some to get a good seal
3. gives you a reproducible seating position for when you take your final
impression/ will know where to grind down on the final denture based on the
tissue stops
what is a Record Base? - correct answer ✔A rigid, relatively thin layer of
wax, shellac or thermoplastic polymer (Triad) adapted over edentulous
surfaces of a definitive cast.
An interim denture base used to support the occlusal rim for the purpose of
making maxillomandibular relationship (MMR) records and/or arranging teeth
3 things record bases are used for? - correct answer ✔1. Support wax
occlusion rims
2. Facilitate maxillomandibular relation records
, 3. Provide a base for try-in procedures
2 purposes of occlusal rims are? - correct answer ✔1. occluding surfaces
fabricated on interim or final denture bases for the purpose of making
maxillomandibular relation records and arranging teeth
2. Also used to relate casts on an articulator
Occlusal Rims Functions - correct answer ✔1. Used to relate casts on an
articulator
2. Wax occlusion rims simulate the position of the teeth
• Determination of midline of the arch
• Determination of smiling (high) lip line and speaking (low) lip line
• Determination of canine eminences
3. Provide proper support of the lips and cheeks when appropriately
contoured
4. Aid in orientation of the occlusal plane
5. Serve as a means of transfer of the facebow record
6. Used in determining vertical and horizontal jaw relationships: VDO, VDR,
freeway space, CR
5 areas that need to be blocked out on the master casts? - correct answer
✔1. Undercuts
2. Frenum attachments
3. Rugae
4. Irregular soft/hard tissue surfaces
5. Redundant soft tissue areas
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