tissue conditioners Flashcards
tissue conditioners.
- polyethyl methacryalate or isobutyl methacrylate
ester in alcohol solvent
powder polymer:
liquid:
lining the intaglio surface of a denture with this improves retention and stability and relieves pressures. this allows abused tissues to recover
tissue conditioners
what do tissue conditioners do
improves retention, stability, and relieves pressure
with tissue conditioners, __ and ___ are mixed to make a gel then placed in denture-> insert for 5 minus
polymer and monomer
tissue conditioners are used to treat:
chronic denture sorness, traumatized oral mucosa, remodeling ridges
what allows pt to continue wearing dentures while allowing abused tissues to heal
tissue conditioners
how often should tissue conditioner be renewed (if treating irritated tissue)
once or twice per week
group of elastomer polymers
used in a denture when a protective resilient surface is needed on intaglio surface
resilient liners
reilient liner patients:
xerostomia
hypersensitive mucosa
bruxers
kinfe-edge ridge/atrophy
heat processed to the denture base as a reline procedure
resilient liners
_______ of the resilient liners allow the material to absorb energy/pressure of occlusion, decreasing pressure on mucosa
elastic deformation
4 materials of resilient liners
silicone elastomers
polyurethane elastomers
vinyl-acrylic polymers
rubber
what is the length of service for resilient liners
6 months to 5 years
indication for this would be REPEATED fracture of a conventional denture. sometimes seen when a single denture opposes natural teeth
metal base denture
metal base denture advs
stronger
less likely to fracture
more accurate
less deformation of base during function
better thermal conductivity
better tissue tolerance
disadvantage of metal base denture
difficult to reline
cast metal bases materials
ni-cr or co-cr
gold
aluminum
relining complete dentures is needed every ____ after initial insertion
4-7 years
purpose of this is to produce an intaglio surface which fits the mucosa accuruately without affecting the occlusion or ovd
reline procedure
replacing the intaglio surface of prosethesis
relining
replacing the entire denture base (intaglio and cameo surfaces)
rebasing
occlusal relationship is not altered
relining and rebasing
denture is not retentive or stable
reline
when existing OVD and occlusion is acceptable at CR and phonetics are acceptable but intaglio is not
relining
when do you not reline
teeth grossly worn/not positioned right
occlusal plane errors
poor esthetics/phonetics
OVD error
errors to avoid when relining
allowing max to move forward (add holes) and removing before material fully seated
static impression:
closed mouth tech.
patient occludes at OVD
functional movement with tongue made
when relining, use ___ and create
use adhesive and create relief holes