Quiz 1 Flashcards
the complete intercuspation of the corresponding teeth independent of the codylar postin. Best fit of teeth
Maximal Intercuspal Position
the occlusion of the opposing teeth when the mandible is in central relation. may or may not be the same as MIP. Usually the mandible is more POSTERIOR here
Centric Occlusion
the relationship in which the condyles articulate with the thinnest avascular portion of the discs in the anterior-supeior position. it is INDEPENDENT of tooth contacts…jaw dependent
Centric relation
the side which the mandible LATERALLY moves during LE
Working side
the side of the mandible that moves toward the median line during LE
non working side
9.3
occlusal plane angle
87.7
facial plane angle
21.9
mandible plane angle
135
incisal edge angle
shift of the madible toward the working side during LE via the tension of the TMJ ligaments and the medial glenoid fossa of the non working side.
bennent movement
chewing, swallowing, talking all within the confines of motion
functional movement
a line from the tip of the canine along the buccal cusps of the posterior teeth
curve of spee
a line of bilateral contact by the lingual and buccal cusp tips when viewing from the frontal view. Used for R and L posterior teeth
curve of wilsom
space bounded by the lips, cheeks and tongue. Here there is an equilibrium of muscular forces between all of them putting them into equilibrium
Neutral Zone
Its mandibular and one distal to it
What does each tooth of the maxillary correspond with?
the horizontal overlap of teeth
overjet
the vertical overlap of teeth
overbite
influence of the mandibular movement such as protrusion by the lingual surfaces of the maxillary incisors and the incisal edges of the mandibular incisors
incisal guidance
Maxillary lingual, mandibular buccal
supporting cusps
maxillary buccal, mandibular lingual
guiding cups
formed by the marginal ridges and the inner inclines of the cusps on the posterior teeth
occlusal table
the 1mm area zone on the outer incline of the supporting cusps….maxillary lingual, mandibular buccal
functional outer aspect
the movement of the CONDYLE on the WORKING side horizontal
laterotrusion
the movement of the NON working side MEDIALLY
mediotrusion
simultaneous bilateral anterior and posterior tooth contacts during all positions of moevemt
balanced occlusion
mandibular relationship occuring during MINIMAL muscle contraction
postrual position
distance between 2 points when the occlusal surfaces are in contact
occlusal vertical dimension
distance between 2 points (1 upper face, 1 lower face) when the mandible is at phyiological rest
rest vetical dimension
mandible position when the head is upright and the elevator and depressor muscles are in equilibrium in TONIC contraction and the condyles are in vertical unstrained position
physiological rest
the distance between occluding surfaces when the mandible is a specified position
interocclusal distance
the distance difference between the vertical distance of when the mandible is in rest and when in occlusion
interocclusal rest space
line which the mandible may rotate within the saggital plane
transverse horizontal axis (hinge axis)
movement in space characterized by 2 DIVERGENT points
Hinge Movement (rotation)
movement in space characterized by a linear motion with no stationary axis
translatory movement
bilateral, simulataneous, anterior and posterior occlusal contact of teeth in the centric and eccentric position
balanced articulation
posterior teeth protect excess contact of the anterior teeth, anterior teeth help to disengage the posterior teeth
mutually protected articulation
multiple contact relation between the maxillary and mandibular teeth in lateral movements on the WORKING SIDE
group function
mandible position ANTEIROR to the centricl relation (JAW Depenedent, tooth contact INDEPENDENT)
protrusion
