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Crowns and Cements
Terms in this set (42)
IRM is what kind of cement?
What forms does IRM come in for our clinic?
Indications for Zinc phosphate cements
Easy mix and clean
Contraindications for Zinc phosphate cements
What kind of cement is Duralon?
What form does Duralon come in?
Indications for using polycarboxylate cements?
Moderate bonding to tooth structure
Great for long term temps
Contraindications for polycarboxylate cements?
hard to clean
sets super sticky and fast
What kind of cement is FUGI Cem2?
Indications for RMGI cements?
Easy mix, handle, and clean up
Stable over a long period of time
Contraindications for RMGI cements?
Acidic- could induce pulpitis
No Moisture allowed
What kind of cement is Panavia2?
What kind of cement is RelyX Unicem
What kind of cement is RelyX luting plus and what forms does it come in?
RMGI, automix capsules and powder/liquid
What kind of cement is FUGI plus and what forms does it come in?
RMGI, powder and liquid or capsule forms
What kind of cement is VariolinkLC?
Indications for using Panavia?
Bonds to metal and silanated surfaces W/O bonding agents
Contraindications for Panavia
Many steps, technique sensitive
Indications for using RelyX Unicem?
No etching, priming or bonding required
Indications for Variolink LC
Color stability and lifelike translucency
T/F Resin cements can be used for metal
Which cement is most commonly used in our clinic?
What are general indications for resin cements?
Auto curing or light cure
self etching versions
high bond strengths to tooth structures
relative insoluble in oral fluids
don't irritate pulpal tissues
What are some general contraindications for Resin cements?
low strength dental ceramics
bond strength can be affected if proper technique isn't done
difficult to clean up
radiopaque and difficult to identify on radiographs
What consideration needs to be taken if using resin cements on metal crowns?
need to use auto curing resin cements
What is Ceramir C&B made of?
calcium aluminate and glass ionomer components
What kind of cement is Ceramir?
a Bioceramic Luting Cement
What is an SSC?
Stainless Steel Crown
When are the indications and contraindications for SSC?
Used in Pedo
Contraindication is that it's ill fitting
What % of a high noble crown are high noble metals?
60%, 40% of this is gold while 20% is made up of silver, palladium, and platinum
What are the indications for a gold crown?
wears like enamel
low reduction needed
long life span
What are the contraindications for a gold crown
dependent on composition %s
What are the reductions for a Gold crown?
0.5mm axial walls
What is the axial angle for a gold crown?
3 degrees, total 6 degrees minimum
What kind of margin do you have on a Gold crown?
What are the indications for a PFM
deep porcelain so better esthetics
What are the contraindications for a PFM
wears enamel bc of strength
high reduction requires
some lower esthetics
dependent on % of noble metal
fractures can happen
what are the reductions and degrees of taper for a PFM crown?
occlusal: 2mm on non-functional cusps
2.5 mm on functional cusps
0.6mm MIN for lingual
3degrees of taper
What kind of margin is used for a PFM prep?
lingual has chamfer, buccal has shoulder margins
What are the indications for ceramic crowns?
moderate prep reductions
What are the contraindications for ceramic crowns?
not the strongest moderate strength
What are the reductions for a ceramic crown?
1mm shoulder prep- chamfer style
1.5 axial wall reduction
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