Test #2-2 Flashcards
what is a polymer
single molecule made of smaller molecules (monomer)
what is a resin
contains many different molecules including polymers
what is a synthetic resin
formed by polymerization
synthetic plastics
what does synthetic indicate
man made, plastics paint
what does natural resins inciate
form of plant life
what are some characteristics of synthetitc resins
- non metallic
- molded into a form
- stimulate oral tissue
what are synthetic resins used to create
partials, temps, appliances, ortho appliances, denture bases
what is a full denture
replacement for all the teeth and associated structures in 1 arch
what is a partial dentrue
replaces some teeth and related structures
what is a conventional denture
*All necessary surgery completed before denture is delivered
what is an immediate denture
constructed prior to extraction or any necessary surgery
What is a cu-sil partial denture
-flexible collar/soft elastomeric gaskets
what is an implant retained denture
denture snaps or screws on to implants
what is a non implant, non retained kinda of denture
over denture magnetic attachment
what is an obturator
denture that fills in a hole in the palate
what does paralysis of the soft palate result in
hypernasal, unintelligble speech
what is paralysis of the soft palate a result of
ALS, Stroke, Radiation Therapy
What can be created in the paralysis of the soft palate
a palatal lift
can 2 different combinations of dentures be used
FUD, and a lower implant retained denture
what is a base
mimics the soft tissue and fits over the alveolar ridge
what is a flange
extends vertically from the teeth toward the mucobuccal fold
what is the periphery (border)
edge located at the deepest part of the flange
what is the framework
supporting skeleton
what is the connector (bar)
link between parts of the framework
what is the saddle
overlies soft tissue and supports the artificial teeth
what is a clasp (retainer)
extension that partially encircles abutment teeth-
provides horizontal stability
what is a rest
small, metal extension near a clasp that fits into a prepared depression on an abutment tooth
what does a rest provide
vertical support
be able to identify lingual and labial flange, tooth, clasp, saddle, rest, retention arm, reciprocating arm, minor connector, major connector on picture
is on pg 11
what is a valplast denture
one with no metal
what is the appt sequence for a prosthetic resin
- alginate impressions
- base plate and occlusal rim try in
- wax try in and reline impresson
- delivery
what is the composition of a prosthetic resin
liquid monomer combined with polymer powder
what is methacrylic acid
polymers of repeating molecular units
what does the powder provide
body
what does the initiator provide
begins molecular chaining
what is the initiator
benzoyl peroxide
what is the monomer*
methacrylate acid
what is the polymer*
polymethylmethacrylate
vinyl is for*
softening
styrene is for *
hardening
*what is the most common polymerization
addition
what is addition polymerization
monomers are added one after another to form a polymer chain
- what is another kind of polymerization
condensation polymerization
what is condensation polymerization
molecular by product is produced by the union of each monomer
what is the by product of condensation polymerization that we dont want
water or alcohol
What is the most common prosthetic resin*
PMMA
when is heat cured PMMA used? Cold cured?
laboratory use, chairside
What are good qualities of PMMA
high impact resistant acrylic
compression molding of __________ resin is most common
heat molding
what is a soft liner for
tissue conditioner
what should you know about caring for a denture
-bleach is safe for acrylic but removes color and attacks the metal of partial dentures
what should you not clean a denture with
hot water
abrasive agents
What can patients be allergic to in a denture
acrylics
