Biocompatibility and intermediate restorative materials Flashcards
with biocompatibility patient must be safe from any __
adverse reactions
the biological reaction can take place either at a __ or far removed from the __
local level, site of contact
most common Rx to dental staff
hand/ facial dermatitis or respiratory symptoms
denture resins showed
-mucosal changes
-stomatitis
-burning sensation
biocompatibility systemically may not always be readily __
apparent
nickel ask patie4nt if they can wear costume __
jewelry
most common metal allergies
nickel and cobalt
mucosal melanoma is __ but highly aggressive
rare
mercury direct contact of oral mucosa with this material can cause oral __ lesions on the oral mucosa
chronic inflammatory
cobalt complications after revision due to __ toxicity
cobalt and chromium
possible reactions between material and environment
- post- operative sensitivity
- toxicity
- corrosion
- hypersensitivity/ allergy
calcium hydroxide stimulates __ formation
tertiary dentin
what metal produces more allergic reaction than all other metals combined?
nickel
intermediate restorative materials applied to __ prior to final restoration
dentin
intermediate restorative materials should not __ the tooth
discolor
intermediate restorative materials goal is to protect the pulp from
chemical, electrical, thermal
intermediate restorative materials should __ quickly
harden
intermediate restorative material characteristics
-thermal insulator
-abrasion resistance
-sealing properties
-low solubility
intermediate restorative materials should withstand the __ of overlaying restoration
condensation
intermediate restorative materials are intended to be __
permanent
intermediate restorative materials role may be
-protective
-palliative
-therapeutic
intermediate restorative materials may be used under cements and restorative materials that do not contain __
resin components
when using bases use a __ mix of material which can be placed in __
thick, bulk
liners and cases are material placed between dentin to provide pulpal __
protection and response
intermediate restorative materials should be easily __
manipulated
bases used as a __ replacement to minimize final restorative material
dentin
bases used to block out __
undercuts
liners only applied as a __ coating over exposed dentin
thin (less than 0.5 mm)
liners able to promote the health of the pulp by __ action
adhesion or antibacterial
liners primary role is to protect the __
pulp
liners form a strong bond to dentin preventing __ down the dentinal tubules
fluid movement
liners provide a __ barrier
bacterial
liners have sustained __ release
fluoride
vitrebond light cure resin- modified glass ionomer can be used for __ restorations
composite, amalgam, metal, cermaic
vitrebond not indicated for __
direct pulp capping
calcium hydroxide Ca(OH)2 highly alkaline with a pH of __
11-12.5
calcium hydroxide retains anti- bacterial properties for about __
2 months
calcium hydroxide formation of __
tertiary dentin
calcium hydroxide used for __ pulp capping
direct and indirect
dycal calcium hydroxide liner can be __
self or light cured
varnishes has some __ properties
antimicrobial and antiviral
varnishes easily seep into open __
dental tubules
varnishes prevent transfer of __ to the dentin and pulp
heat and cold
use __ instead of __ at UMKC SOD
vitrebond, varnishes
varnishes not to be used under __ restorations
composite (affects setting time)
varnishes not used under __
glass ionomers (affects fluoride release)
__ used as an insulating layer under gold and amalgam restorations
copalite/
place nothing, vitrebond, or varnish
shallow tooth prep
liners may be placed for thermal protection and pulpal medication along with varnish
moderate depth
liner may be calcium hydroxide, then the base vitrebond (glass ionomer) or IRM
very deep
