Ashman Important, Jaw Mvt, Mounting, Border Movt Flashcards
What is the “movement of the condyles about the axis of rotation while remaining within the mandibular fossae”?
Rotation
What is the “movement of the condyles out of the mandibular fossae”?
Translation
Where is the condyle when the jaw is at rest?
In the superior, retruded position.
Where is the disc when the jaw is at rest?
Between the condyle and fossae.
Where is the condyle when the jaw is opened just a little bit?
In the superior, retruded position (however it is rotated).
Where is the disc when the jaw is opened just a little bit?
Between the condyle and fossa.
Where is the condyle when the jaw is opened WIDE?
It has rotated and slid (translated) out of the glenoid fossa.
Where is the disc when the jaw is opened WIDE?
It moves along with the condyle- it slides out of the glenoid fossae.
What is a scenario of TMJ regarding protrusion?
If during protrusion you have translation of the jaw, but no rotation.
What is a scenario of TMJ regarding rotational opening?
If you have rotation of the condyles, but no translation.
Angulation of the articular eminence is demonstrated by _______ _______.
Condylar guidance
The angulation of the medial walls of the glenoid fossae manifests as _____ _____ shift.
Lateral side shift
What are 2 other ways you can say “condylar guidance”?
1) Condylar inclination
2) Angulation of articular eminence
(Also called “setting your condyles”)
Angulation of the medial wall of glenoid fossa is commonly called _____ shift or ______ Angle.
side shift or Bennett angle
In Hanau’s Formula, what are H and L?
L= Lateral side shift setting
H= Condylar guidance setting
What is this image showing?
The protrusive record in place.
