neutral zone - tech bit Flashcards
neutral zone definition?
the area where the forces generated by the tongue are neutralised by the forces generated by the lips and cheeks
dislodging forces are lessened as well
resorption pattern of the maxilla?
resorbs upwards and inwards
to become progressively smaller because of the direction and inclination of the roots of the teeth and alveolar process
resorption pattern of the mandible?
inclines outward and become progressively wider
how to identify the neutral zone?
carefully trimming bite block at bite reg stage
these should not have been dislodging and pt seems comfortable
these blocks will have been shaped into the neutral zone
If you are struggling to fine the neutral zone with bite blocks, what can you prescribe for?
acrylic bases
with wire loops
or thin or acrylic onto the acrylic base
purpose of the stops?
correct OVD
What has occurred here?
used co-soft or viscogel
pt made very specific movement - made functional impression of their own neutral zone
give this to technician
What is highlighted?
narrow occlusal table
What has occurred here?
impression and OVD info sent to tech
space filled with wax
could be on acrylic base
teeth set in neutral zone
could be on acrylic base
teeth set in neutral zone
teeth need to be narrow
needed for true neutral zone
that’s the only room the moth has for teeth
what has been compromised here?
extensions over the retromolar pad
pt was gagging
stability is good so extension cold be compromised
what has occurred form left to right?
decided there was not enough of an occlusal table
see if a wider occlusal table would be tolerated
pt got use to occlusal table
what may you have to add onto the anterior area of the neutral zone teeth?
chrome lingual plate
teeth and flange are thin so can easily break
