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What is the main determinant of denture tooth position?
Functional anatomy
How do we minimize inclined tipping forces?
WithÂ
incisal guidance
(within the confines of esthetics and phonetics)
Features in a fully balanced anatomic occlusion set
30 degree posteriors
Non-balanced monoplane occlusion sets
Monline zero degree posteriors
Hardy Cutters V-O posteriors
Rational zero degree posteriors
***none of these have ramps***
Balanced monoplane occlusion
These all have ramps
Monoline zero degree posteriors
Rational zero degree posteriors
Hardy cutters V-O posteriors
Zero degree posteriors with Curvilinear balanced arrangement
hardy cutters V-O posteriors
Rational Zero degree posteriors
***Can't use hardy cutters, they're already monoplane and non-curvilinear
***Curvilinear arrangements
maintains tooth-tooth balance
on the balancing side and working side
How do patients deal with balanced and non-balanced sets?
1)no patient preference
2) balanced is slightly more efficient
3) Percentage of patients using eccentric movements during mastication is small
What is the relationship between ridge resorption and cuspal inclination?
The flatter the ridge, the more cusp inclination should decrease
Balanced Semi-anatomic occlusion sets
Anatoline 10 degree posteriors
Where is the least resistant tissue on the ridge?
Just above the mylohyoid ridge
Lateral to the tongue, lingual to the ridge
keratinized tissue is not very good
**Flatter cuspal inclination will help this
How to we reduce the resorption on the mandibular ridges?
Lingualized occlusion
These have milled mandibular posteriors (flatter inclines) and 30 degree maxillary lingual cusps
The goal is to not have any buccal contacts to reduce lateral forces against the ridges
What happens on the working side of ortholingual sets?
There is no contact on the buccal cusps, but they do exist on the lingual cusps
What are the indications for lingualized occlusion?
Severe mandibular ridge atrophy
Displaceable supporting tissues
malocclusion
Previous successful setup had lingualized occlusion
What are the advantages of lingualized occlusion?
Good esthetics
Freedom like non-anatomic teeth
Bilateral balance
Centralized vertical forces
Bolus penetration
Author
Grant32
ID
189171
Card Set
8Occlusionforms.txt
Description
Dentures lecture 8
Updated
2012-12-13T01:50:13Z
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