Jaw reflex Flashcards
Transport loss
Sjogren’s
Burning mouth syndrome
Stomatodynia
No pathology - Neuropathic > Psych effect
Fear through smell
Limbic system
Amygdala
Emotional fear/pain evoked by pain
Limbic pathway
Altered taste from medications
Dysgeusia
Phantom Pain Theory
Neuromatrix (no tissue damage > pain from experience)
Pain from stimuli not normally causes pain
Allodynia
Stomatodynia
Burning mouth syndrome
Limbic system causes
Amygdala
Fear through smell
Limbic pathway involved in
Emotional fear/pain evoked by pain
Dysgeusia
Altered taste from medications
Allodynia
Pain from stimuli not normally causes pain
What sensitises nociceptors?
Prostaglandin
Prostaglandin does what?
Sensitisers nociceptors
PMR:
Perio Mechanical Receptors Regulate force by teeth, adapt load Slow apex, fast fulcrum More sensitivity to low force = implication >high occ Ruffini-like= Jaw opening reflex
Increased sensitivity to pain (dmg nociceptor) peripheral
hyperalgesia
hyperalgesia
Increased sensitivity to pain (dmg nociceptor) peripheral
Pain and Temp travels through
Spinal Nucleus V (Medulla)
Spinal Nucleus V (Medulla) deals with:
Pain and Temp
Proprioception travels through
Mesencephalic nucleus V (Midbrain)
Mesencephalic nucleus V (Midbrain) deals with
Proprioception - Mechanoreceptors
16> Post Sup Alve >
Reflexes:
- Jaw close/Jaw Jerk
- Opening
- Unloading
- Tooth contact
- Horizontal
Jaw close/Jaw Jerk Reflex:
Stretch spindle in masseter (7-12ms)
-Tap chin in rest = contract = teeth occlude
Opening Reflex:
Polysynaptic > Mech/Elec stimuli to lips/gingiva/mucosa
=Opening > inhibit md elevator w/o stim cont of depressor
Unloading Reflex:
Protective > sudden unload > inhibits elevators and excites depressors (PDL)
- bite on stone during mastication
Tooth contact reflex:
transient, silent then increase and decrease elevator, nothing in depressors (snap together)
Horizontal reflex:
Lateral, protrusive = retrusive md
2 point detection
tip of tongue
Cold and warm felt most:
Dorsum of tongue
Cold only felt:
gingiva > Bu Mu> palate
