CFF2 exam 1 - L1-L3 of L6

oeshnoeugo123's version from 2018-02-15 06:21


Question Answer
ginglymoid joint
joint for:
-hinge movement
arthrodial joint
joint for:
-gliding movement

L2 - mandibular motion

Question Answer
condylar guidanceposterior determinant
incisal guidanceanterior determinant
1. condylar guidance
2. incisal guidance
3. neuromuscular factors
determinants of mandibular movement
posterior guidanceposterior slope of the articular eminence forms the _____ guidance
synovial fluid-acts as a medium for metabolic requirements
-acts as a lubricant
superior retrodiscal laminalamina of CT with many elastic fiber
-stretches and allows the condyle to move FORWARD
inferior retrodiscal laminacollagenous fibers: attaches disc to posterior margin of articular surface of condyle
-limits the anterior movement of the disc
retrodiscal tissue____ tissue (near articular disc) is highly vascularized and innervated
articular disc-avascular
-composed of dense CT
-separates condyle from the articular fossae
-firmly attached to the lateral and medial poles of the condyle (thus moves simultaneously with the condyle)
retrodiscal tissue____ tissue (near articular disc)
-attached posteriorly to a large venous plexus, which fills with blood as the condyle moves forward
-if pressured it will cause pain!
1. collateral ligaments
2. capsular ligaments
3. temporomandibular ligaments
3 functional ligaments of TMJ
1. sphenomandibular
2. stylomandibular
2 accessory ligaments of TMJ
OOP - outer oblique portiontemporomandibular ligament that:
-limits normal rotational movement during opening
IHP - inner horizontal portiontemporomandibular ligament that:
-limits posterior movement of the condyle and disc
Non-working side (aka Balancing side)muscles associated with working or non-working side movement?
-superficial fibers of masseter
-deep fibers of masseter
-medial pterygoid
-inferior head of LP - (pulls condyle and disc assembly forward)
working sidemuscles associated with working or non-working side movement?
-deep fibers of masseter
-posterior fibers of temporalis
-superior head of LP
Bennett side shiftprogressive side shift aka what?
1. immediate side shift
2. precurrent sid shift
3. progressive side shift (Bennett side shift)
types of side shifts of non-working side (aka balancing side) condyle during laterotrusion
immediate side shift
-86% of condyles
-range: 1-4mm
-avg: 0.75mm
most non-working side (aka balancing side) condyles produce which side shift?
immediate side shiftnon-working side shift
-lateral translation occurs before forward movement of the non-working condyle
precurrent side shiftnon-working side shift
-major portion of the lateral translation occurs DURING the first 2-3mm of FORWARD movement
progressive side shift (aka Bennett side shift)non-working side shift
-lateral translation that CONTINUES LINEARLY during FORWARD movement
(is the case for most people)
-requiring cuspal forms to be SHORTER
-OR fossae flatter
Greater Bennett angles and/or immediate side shift will result in narrower/wider lateral jaw movements?
-requiring cuspal forms to be shorter/longer?
-OR fossae flatter
superior retrodiscal lamina (retracts disc as mandible closes)only structure capable of retracting the disc
superior belly of LP (lateral pterygoid)structure capable of protracting the disc

L3 - vertical dimension & occlusion

Question Answer
(slightly apart)
distance between teeth when making an "S" sound. (Closest speaking space)
1. Curve of Spee (anteroposterior curve)
2. Curve of Wilson (mediolateral curve)
Compensating Curves (2)
-curvatures of the POSTERIOR plane of occlusion
Curve of Spee (A-P curve)
-begins at the tip of the lower canine
-touches the cusp tips of all posterior teeth (True)
-continues to the ANTERIOR border of the ramus
Curve of Spee (A-P curve)
-begins at the tip of the lower (which tooth?)
-touches the cusp tips of all posterior teeth (T/F?)
-continues to which border of the ramus?
curve of wilson (mediolateral curve)mediolateral curve that contacts
buccal and lingual cusp tips
on each side of the arch
Campers planeala-tragus line
category 1worn dentition category #?
-excessive wear
-loss of VDO
-NO space
category 2worn dentition category #?
-excessive wear
-NO loss of VDO
-with space
category 3worn dentition category #?
-excessive wear on anterior teeth
-minimal wear on posterior teeth
-NO loss of VDO
-limited space