FINAL GUIDE Flashcards
T/F
The most important feature to evaluate is the orthopedic stability (CR) between the intercuspal position (ICP) of the teeth and the TMJ positions
TRUE
describe radiographic changes you might see with heavy occlusal forces?
Heavy occlusal forces can cause radiographic changes: widened pdl, osteosclerosis, hypercementosis
how can you test the tooth for fractures?
Fractures, having the patient bite on a small wooden separator over each cusp tip will cause a shearing effect at the fracture site and elicit a sharp pain.
where might the temporalis muscle refer pain to?
ONLY to the maxillary teeth
where does the masseter often refer pain to?
ONLY to the posterior teeth
where does the digastric anterior refer pain to?
only to the mandibular incisors
what positions should you look at occlusal contacts?
Occlusal contacts should be examined in: CR ICP Right and Left Laterotrusives Protrusive
What is AP radiography good for?
surgery…
viewing fractures of the neck and condyle
BUT contraindicated in patient that can’t open wide enough to translate
Why is MRI the gold standard?
no radiation, better soft tissue evaluation than CT. BUT it’s expensive
Most common cause of severe wear of anterior teeth
loss of posterior support
you will have deflective posterior tooth contacts
Some muscle hyperactivity may represent an increase in the static tonic contraction of the muscle
Nocturnal rhythmic masticatory muscle activity (RMMA) - Some muscle hyperactivity may represent an increase in the static tonic contraction of the muscle
T/F
Bruxing events appear to be associated with a change from deep sleep (stage 3 & 4) to lighter sleep (Stage 1 and 2)
true
arousal activity*
remember, delta stage of sleep is associated with muscle hyperfunction
Etiology of nocturnal bruxism
Overall etiology is a disturbance in the cranio-neuromuscular system causing muscle function hyperactivity.
average time of bruxing per night for the bruxers?
38 minutes
5-6 seconds per event
average max conscious biting force ?
756 N…. 3-10 times greater during bruxism
