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NBDE Flash! - Occlusion
NBDE Flash! Part 1 Review Series. Home Page: http://www.flashcardmachine.com/p/nbdeflash
69
Dentistry
Professional
02/10/2012

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Term
What causes supraeruption?
Definition
Unopposed/No contact
Term
CO or MIP is determined by
Definition
Teeth
Term
CR is determined by
Definition
Bone to Bone/Ligament guided
Term
PRP is determined by
Definition
Muscles
Term
Freeway Space =
Definition
PRP - CO
Term
VDO is smallest in which position
Definition
MIP
Term
Normal Freeway Space
Definition
2-4mm
Term
Which component of occlusion can a dentist not change?
Definition
Condylar Inclincation, CR
Term
Occlusion of the teeth is a (static/dynamic) position
Definition
Static
Term
The rotating condyle is on the (working/balancing) side
Definition
Working Side
Term
The rotating condyle is on the (laterotrusive/mediotrusive) side
Definition
Laterotrusive
Term
The working side is the synonymous with (laterotrusive/mediotrusive)
Definition
Laterotrusive
Term
The orbiting condyle is on the (working/balancing) side
Definition
Balancing
Term
Balancing side is synonymous with (non-working/working) side
Definition
Non-working
Term
The orbiting condyle is on the (laterotrusive/mediotrusive) side
Definition
Mediotrusive
Term
The non-working side is the synonymous with (laterotrusive/mediotrusive)
Definition
Mediotrusive
Term
What is the name of the movement where one juts the jaw forward?
Definition
Protrusive
Term
What does CR stand for in terms of occlusion?
Definition
Centric Relation
Term
Centric relation a term that describes the position of the ___ in the TMJ
Definition
Condyle
Term
The does CR say about the position of the teeth?
Definition
Nothing! It only has to do with the position of the condyle in the TMJ (a bone to bone interaction)
Term
True or False, most people have ideal CR and ICR at the same time
Definition
False
Term
What does ICR stand for in terms of occlusion?
Definition
Intercuspal Position
Term
Which type of contacting relationship describes 1 to 1 tooth occlusion?
Definition
Cusp to Fossa
Term
In optimal occlusion, the condyles are in their most super (posterior/anterior) position
Definition
Anterior
Term
In optimal occlusion, the condyles are resting on the (anterior/posterior) slopes of the articular eminences
Definition
Posterior
Term
There should be heavier contacts on (anterior/posterior) teeth
Definition
Posterior
Term
During protrusive movements, the (anterior/posterior) teeth should disclude immediately
Definition
Posterior
Term
Mandibular movement provided by the contact between the anteriors as the mandible moves through excursive movements?
Definition
Anterior guidance
Term
Anterior teeth are inclined to the (labial/lingual) approximately __-__ degrees
Definition
labial, 12-28 degrees
Term
Condylar guidance has greater influence on teeth (anterior/posterior) to the premolars
Definition
Posterior
Term
Anterior guidance has the greatest influence on teeth (anterior/posterior) to the premolars
Definition
Anterior
Term
An increased horizontal overlap necessitates (shorter/taller) cusps on posterior teeth
Definition
Shorter
Term
An increased horizontal overlap necessitates (shallower/deeper) grooves on posterior teeth
Definition
Shallower
Term
A decreased horizontal overlap accommodates (shorter/taller) cusps on posterior teeth
Definition
Taller
Term
A decreased horizontal overlap accommodates (shallower/deeper) grooves on posterior teeth
Definition
Deeper
Term
With (increased/decreased) horizontal overlap, a change in the teeth is a necessity
Definition
Increased
Term
A decreased vertical overlap necessitates (shorter/taller) cusps on posterior teeth
Definition
Shorter
Term
A decreased vertical overlap necessitates (deeper/shallower) grooves on posterior teeth
Definition
Shallower
Term
An increased vertical overlap accommodates (shorter/taller) cusps on posterior teeth
Definition
Taller
Term
An increased vertical overlap accommodates (deeper/shallower) grooves on posterior teeth
Definition
Deeper
Term
If you have a(n) (increased/decreased) vertical overlap, specific tooth change is a NECESSITY
Definition
Decreased (must have shorter cusps, and shallower grooves)
Term
The protrusive path is measured in degrees from ___ reference plane
Definition
Horizontal
Term
The protrusive path ranges from __-__ degrees in humans, with a median of ___
Definition
25-70, 40
Term
Protrusive path is also known by what 2 other names?
Definition
1. Angle of Eminence 2. Condylar inclination (CI)
Term
(Steep/flat) condylar inclination produces rapid disclusion
Definition
Steep
Term
(Steep/flat) condylar inclination means long cusps and deep fossae are acceptable
Definition
Steep
Term
(Steep/flat) condylar inclination REQUIRES short cusps and shallow fossae on posterior teeth
Definition
Flat
Term
A flat condylar inclination REQUIRES (short/tall) cusps and (shallow/deep) fossae on posterior teeth
Definition
Short, shallow
Term
Lateral excursion path ranges from __-__ in humans, with a median of __-__
Definition
25-75, 45-55
Term
In laterotrusive movements, the cusp pathway is (transversely/obliquely) directed
Definition
Transversely
Term
In mediotrusive movements, the cusp pathway is (transversely/obliquely) directed
Definition
Obliquely
Term
The TMJ determines how the (anterior/posterior) teeth behave
Definition
Posterior
Term
Mandibular incisal tables function against maxillary ___ in anterior guidance
Definition
marginal ridges
Term
The mandibular canine slides against what part of the maxillary canine?
Definition
Central Area
Term
With a flat condylar inclination, you get (more/less) separation of the mandible
Definition
less
Term
The steeper the condylar pathway, the (taller/shorter) the cusps and (deeper/shallower) the fossae MAY be
Definition
Taller, Deeper
Term
The flatter the condylar pathway, the (taller/shorter) the cusps and (deeper/shallower) the fossae MUST be
Definition
Shorter, Shallower
Term
A (steep/flat) condyle necessitates a more specific tooth anatomy
Definition
Flat (must have shorter cusps and shallower fossae)
Term
Mandibular lateral translation movement is also called what?
Definition
Bennett Movement
Term
Side shift is determined by the (orbiting/rotating) condyle
Definition
Orbiting
Term
What are the three main axises of the jaw?
Definition
Horizontal, Vertical, Sagittal
Term
Which axis is also called the "terminal hinge axis"?
Definition
Horizontal
Term
The sagittal axis moves in the ___ plane.
Definition
Frontal
Term
What is the terms for when the condyles are in the most superior anterior position of the glenoid fossa with the disc interposed?
Definition
Centric relation
Term
CR = condyles in the most superior and (anterior/posterior) position of the glenoid fossa with the disc (relaxed/interposed)
Definition
Anterior, Interposed
Term
The maximum opening of the jaw is determined by ___.
Definition
Muscles of Mastication
Term
What ligament stops rotation?
Definition
Outer oblique ortion of tmj ligament
Term
What ligament limits protrusive movement?
Definition
stylomandibular ligament
Term
The superior limit of the mandible is determined by ___
Definition
intercuspal position
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