Occlusion Flashcards
Any tooth structure that interferes with the arc of closure has the primary effect of displacing the mandible … producing an…
- forward
- anterior slide
Line of closure interferences are those primary interferences that cause the madible to deviate… from the initial contact point (CO) to MI
right or left
If an interfereing incline causes the mandible to deviat toward the cheek, the grinding rule is
BULL
If an interfering incline causes the mandible to move toward the tongue, the grinding rule is
LUBL
The vertical dimension of occlusion (VDO) after equilibration at CR should… before adjustment
remain the same as
If forces that deviate mandible forward are eliminated, a… will be provided automatically
long centric
Lateral interferences (on opening) can be divided into 2 types
working side and non working side
Non working interferences grinding rule is… But as non working inclines are relivede , working may start to interfere so…
BULL
-usually both are adjusted together
Before adjustment of the excursions on the working side, it is necessary to determine the type of occlusion that would be best for the patient- … or…
group function
anterior guidance
patients with a large horizontal overlap benefit more from a… in working side excursions
group function
The basic rule for equilibriating working side is…
LUBL
the rule for eliminating protrusive interferences is
DUML
posterior determinants of mandibular movements (3)
- inclination of articular eminence
- medial wall of glenoid fossa
- intercondylar distance
Anterior determinants of mandibular movements
- horizontal overlap of ant teeth
2. vertical overlap of ant teeth
Other determinants of mandibular movements
- occlusal plane
- curve of spee
- neuromuscular response