9. Denture Bases, Occlusal Relationships & Tooth Selection Flashcards
Denture Base
Supports the ____ teeth
Receives functional forces from ____ and transfers
forces to supporting structures
Most ____ in distal extension prosthesis
Adds to the cosmetic effect of tooth replacement
Stimulation of underlying tissues of residual ridge within physiologic tolerance to maintain form and tone to prevent disuse ____
artificial
occlusion
critical
atrophy
Denture Base
The bases are extended within the limits of ____ activity of surrounding oral structures
physiologic
Denture Base
A. Maxillary denture base covers ____ and extends
into ____ with adaptation along the posterior border but not onto the ____.
B. Mandibular denture base covers ____ pads and extends into ____. Primary stress bearing areas are the ____
tuberosities
pterygomaxillary notches
soft palate
retromolar
retromylohyoid fossae
buccal shelves
Ideal Denture Base Material Accuracy of adaptation to tissues Dense, nonirritating surface which holds a good finish Thermal \_\_\_\_ Lightweight in the mouth \_\_\_\_, resistance to fracture Cleansable \_\_\_\_ Ability to reline Low cost
conductivity
strong
esthetic
Metal Base vs Acrylic
Accuracy and permanence of form, interfacial surface tension
Comparative tissue response, naturally ____
Thermal conductivity,
helps avoid feeling of a ____ body
Weight and bulk, thinner
cleaner
foreign
Metal Base
A- Teeth set ____ completion of framework
B- Anterior teeth adjusted to ____ for ridge lap
C- Metal ____ adds strength
before
ridge
reinforcement
In fixed, we want ____ guidance. In complete dentures, we want ____ occlusion (i.e. no canine guidance w/ interferences). Now, with PRDP there are mul8ple scenarios that call for different occlusal rela8onships based on the ____ of the PRDP and what is opposing it
-Anything that opposes a maxillary denture will need a ____ occlusion (to help it have be
canine
balanced
design
balanced
Take a look at these occlusal relationships…
ok
Class III Opposing Class III
Tight ____
____ Contacts
No ____ Contacts
centric occlusion
working
balancing and protrusive
Class I Opposing Maxillary Complete Denture
Full ____ Occlusion
balanced
Class I Opposing Maxillary Natural Dentition
Maximum ____
____ Contacts
No ____ Contacts
intercuspation
working
balancing and protrusive
Class I Opposing Class I
Working Contacts
____ contacts to minimize tipping of maxillary PRDP and to distribute forces to ____ and residual ridges
balancing
abutments
Class IV Maxillary Opposing Natural Dentition
Contact of opposing anterior teeth in the ____ to prevent continuous eruption of the opposing natural incisors
Contact of anterior teeth in eccentric positions is ____
to eliminate unfavorable forces to the maxillary anterior residual ridge
centric occlusion
avoided
Replacement Teeth
Should occlude with opposing teeth like ____ teeth.
____ relationship
natural
cusp-fossa
Framework should not interfere with Functional ____
occlusion