Ex Cursive Movements

8/13/2019 Ex Cursive Movements

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Excursive MovementsAll Movements away from

Centric Relation


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Movements of the Mandible


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Rest Position


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Centric Relation


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The Relationship of the Mandible

to the Maxilla


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when both Condyles are in

their most Superior Position

in the Fossa


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Irrespective of Tooth Position


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First Contact in Centric Relation


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Maximum Intercuspidation


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The Closed Position


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The Initial Hinge Movement


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The Beginning of Translation


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The Fully Open Position


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Closing


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The Closed Position


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Protrusive Movements


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Extreme Protrusion


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Opening Movements


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Translation Movement


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as the Head of the Condyle movesdown the Articular Eminence


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Extreme Opening


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Protrusion guided by the Teeth


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Extreme Opening from ExtremeProtrusive


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Closing during Translation


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Centric Relation


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Envelope of Motion


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Excursive Movements

to the

Left


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to the

Left Side


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RightMolar Teeth


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Jaw moving to

the Rightthe Same Side


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This is a

Functional orWorking

Movement


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This is a

Functional orWorking

Contact


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Functional

Movementswithout

Posterior ToothContact


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in Excursive

Movements


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due to

Disclusion

caused by

Guidance

on Front Teeth


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The

Right Molar

Teeth


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Moving to theSame Side

The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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Functional

Movementwith

Tooth Contact


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due to NoDisclusion

by Front Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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The

Right Molar

Teeth


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Functional

Movement

with Tooth

Contacts

in Crossbite


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Due to No

Disclusionby Front Teeth


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The

Right Molar

Teethin Crossbite


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Moving to

the Same Side

The

Right Molar

Teeth


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The

Right Molar

TeethMoving to

the Same Side


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The

Right Molar

TeethMoving to

the Same Side


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The

Right Molar

TeethMoving to

the Same Side


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The

Right Molar

TeethMoving to

the Same Side


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The

Right Molar

TeethMoving to

the Same Side


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The

Right Molar

TeethMoving to

the Same Side


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Right Left


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Right

Molar Teeth

Jaw moving to

the Left

The Opposite

Side


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This is a Non-

Functional

or

Non-Working

Movement


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This is a Non-

Functional

or

Non-Working

Movement


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Due to

Disclusion

caused by

Guidance

on Front Teeth


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The

Right Molar

Teeth


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The

Right Molar

TeethMoving to the

Opposite Side


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The

Right Molar

TeethMoving to the

Opposite Side


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The

Right Molar

TeethMoving to the

Opposite Side


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The

Right Molar

TeethMoving to the

Opposite Side


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The

Right Molar

TeethMoving to the

Opposite Side


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The

Right Molar

TeethMoving to the

Opposite Side


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Non-

functionalMovement

with Contact


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Due to NoDisclusion

by Front Teeth

Th


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The

Right Molar

Teeth

Th


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The

Right Molar

TeethMoving to the

Opposite Side

Th


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The

Right Molar

TeethMoving to the

Opposite Side

The


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The

Right Molar

TeethMoving to the

Opposite Side

The


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The

Right Molar

TeethMoving to the

Opposite Side

The


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The

Right Molar

Teeth

Moving to the

Opposite Side


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Contacts inCrossbite


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due to No

Disclusion

by Front

Teeth

The


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The

Right Molar

Teeth

The


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The

Right Molar

Teeth

Moving to

the OppositeSide

The


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The

Right Molar

Teeth

Moving to

the OppositeSide

The


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The

Right Molar

Teeth

Moving to

the OppositeSide

The


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The

Right Molar

Teeth

Moving to

the OppositeSide

The


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Right Molar

Teeth

Moving to

the OppositeSide

The


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Right Molar

Teeth

Moving to

the OppositeSide


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Non Functional ContactClinical Cases


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The Jaw has moved to the Left


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(The Opposite Side)

The Right Molar Teeth in Contact


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g

This is a Non-Functional Contact


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During the Patients Lifetime


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g

this may cause

Increased Bruxing and Clenching

Wear of the Teeth

Loosening of the Teeth

Fracture of the Teeth

During the Patients Lifetime


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g

this may cause

Headaches

Muscle Spasm

Temporomandibular Joint Problems

A Clinical Case


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Jaw Movements to the Left


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Front Teeth separatedby a Non-Functional Contact


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by a Non Functional Contact



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by a Non Functional Contact

Jaw Movements to the Right


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Guidance on the Front Teeth


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Although There is Guidance


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Although There is Guidance

on the Front Teeth in This CaseThere may also be Non-Functional

Contacts present as well

I S P ti t


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In Some Patients

This may cause Headache

and/or


Jaw Movement to the Left


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Guidance on the Premolars/Bicuspids


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Front Teeth Separatedby a Non-Functional Contact


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y

On biting hard the Front Teethcame into Contact


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came into Contact

The Mandible pivoted around the

N F i l C


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Non-Functional Contact

stretching the Right

Temporomandibular Joint apart


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Guidance on the Premolars/Bicuspids


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Space present between the Front Teeth


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The Patient did not have a History


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of a Clicking Joint

on the Left Side during eating



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Jaw Movements

after


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after

Occlusal Adjustment



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The Point at which the Tips of the

Crossover


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p

Canines pass over Each other


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may cause increased Bruxing and

Interferences in Crossover


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Clenching

Headaches


Balanced Occlusion

When Functional and Non-


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Balanced Dentures are less likelyto be dislodged

causing Denture Sores


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Movement to the Left


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Functional/Working Contacts


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Not Suitable

for Natural Dentitions


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Balanced Natural Dentitionsare likely to cause

Headaches and Temporomandiblar JointProblems


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The EndThe End

Ex Cursive Movements

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