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17 Cards in this Set

  • Front
  • Back
Behavior Pattern
Muscle activity
Reflex
Brain Feedback
Factors Guiding conditioned reflex patterns
Proprioception in PDL & TMJ
Sensation from oral mucosa & tongue
Muscles of mastication
Factors influencing pattern of mastication
Incisal guidance
Curve of spee
Plane of occlusion
condylar guidance
Incline planes or cusp angles
Chewing cycle
.6-1 sec
Time of tooth contact .2 sec
Texture of food influence
Softer foods are chewed at lower rate
Coarser the food, the greater the lateral component of chewing cycle
Conditions that produce asymmetric lateral movements
Pain, interference, absence of teeth, TMJ dysfunction
stages of swallowing
Voluntary
Involuntary
Reflex muscle activity
Stage 1
Formation of bolus
Lips closed to seal oral cavity
Bolus on hard palate
Max intercuspation to stabilize mandible
Bolus on soft palate triggers reflex
Stage 2
Bolus reaches pharynx & contrictors move bolus into esophagus
Epiglottis closes
Eustachian tubes open
Stage 3
Reflex muscle activity
Bolus goes from esophagus to stomach,
Tooth contacts during swallowing
Liquids cause light to no contact
Solids cause .683 seconds of contact
Determinants of stomatognathic system
Left & right TMJ
Occlusion
Neuromuscular system
Initiating position
Centric relation
Most easily reproduced
Three planes in direction of motion
Frontal plane
Saggital plane
horizontal plane
Clinical significance of condylar angle
Greater the angle of condylar eminence, the longer the cusps must be
Side shift of working condyle
Greater the sideshift, the more mesial lingual groove of mandibular first molar will be
Vertical & horizontal overlap of anterior teeth
Vertical - Greater the overlap, longer the cusps of posterior teeth

Horizontal - Lesser the overlap, the longer cusps must be