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22 Cards in this Set
- Front
- Back
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What is a Bennett Movement?
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Theoretical immediate side shift that occurs before translation in laterotrusive movement
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A Progressive Side Shift is also known as what?
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Bennet Angle
Occurs after the Bennett Movement |
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The ___________ is the horizontal axis of rotation when the condyles are in centric relation.
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Terminal Hinge Axis
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When one condyle translates out of the terminal hinge position and the other doesn't, a ______ axis of rotation is incurred.
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verticle
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A pathological condition where one condyle moves inferiorly and the other remains in the terminal hinge position would create a _________ _________ of Rotation.
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Sagittal Axis
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The combines three dimensional range of mandibular motion is called?
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The envelope of motion
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A _________ _________ illustrates the envelope of motion.
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Posselt Diagram
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Maximum Intercuspation has two synonyms. Name them.
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Centric Occlusion (CO)
Intercuspal Position (ICP) |
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The average discrepancy between CR and CO is ____ mm. This is called CRCO ______.
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1.4 mm
CRCO Slide |
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Name six functional changes that can affect the envelope of motion
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1. TMJ pathologies
2. TMJ inflammation 3. TMJ scarring 4. Muscular tone and spasms 5. Cicatrization (burn scars) |
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What clinical measurements can be taken to help identify pathologies?
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Maximum opening (three finger rule)
Lateral movement Opening pattern -deflections -deviations |
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Define Centric Relation
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The most superior position of the disks and condylar heads in the fossa.
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What are the clinical criteria for determining centric relation?
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No pain
No tooth interferences Must be reproducible |
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Dawson's Academy teaches _________ ________ for establishing CR
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bimanual manipulation
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Which method for finding CR works on edentulous patients?
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Gothic Arch Tracing
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Which method for finding CR is most reliable on dentulous patients?
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Anterior Deprogrammer
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What does the Anterior Deprogrammer actually deprogram?
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It deprograms the muscle memory of a patient's regular bite.
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The _________ is defined as "the vertical distance between the maxilla and mandible maintained by the occlusion of the dentition; either natural or artificial.
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Vertical Dimension of Occlusion
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The Vertical Dimension at Rest is composed of what plus what?
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VDO + Freeway Space
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What is the average Freeway Space?
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2-4 mm
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Negative changes in the VDO can occur due to?
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Non-replaced teeth
wear severe periodontal disease |
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What clinical procedures can cause positive changes in the VDO?
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Splints
Restorations Prosthodontic replacements |
