Supportive Treatment Flashcards
True or false: Enamel/dentin or poor thermal conductor’s
True
What is coefficient of thermal expansion
How much a material will expand when heatedand contract when cooled
What is galvanism
The generation of electrical current that a patient can feel
Corrosion and tarnish: reversible or irreversible
Corrosion: irreversible
Tarnish: reversible
Viscosity means
The ability to flow: the thicker the material the more viscous
True or false: enamel has a high compressive strength and a low tensile strength
True
What has the highest yield strength
Enamel
What is the order of use: base, varnish, liner
Liner(nearest to tooth), base,varnish
Is varnish used with amalgam or composite
Amalgam: Placed under amalgam to function as chemical barrier
Seals dentinal tubules
What is the strongest, least soluble dental luting cement
Glass ionomer
What is zinc oxide eugenol
Temporary cement or base
Sedative effect on pulp
What are athletic mouthguards made out of
Ethylene vinyl acetate acrylic
What can athletic mouthguards cause
Prominent inflammation that tapers off between Central’s
Resin and compomer cements are composed of
Dimethacrylate (bis-GMA) resin
What type of caries or more prominent in kids
Pits and fissure (class I)
Gold alloy
3 pts
Used for posterior inlays, onlays and crowns
Highest durability**
(Indirect restorative material)
Nanofilled restorative material
Best polish Low shrinkage Strength high Wear resistant Smallest particle
Primary preventative service
Sealants, mouthguard
What is the most economical restorative materials
Amalgam (Also the most long lasting)
What is the highest hardness material (polishing)
What is the lowest hardness material
Pumice
Tin oxide
What is rouge used for
Used to polish gold extraorally
The correct way to polish
Slow, light, intermittent pressure
Syneresis means
Loss of water/solvent
Imbibition means
Uptake of water/solvent
What is the most accurate, stable and pleasant materials to work with when doing crowns and bridges
Vinyl polysiloxane (VPS)
What was the first rubber material developed in dentistry
Polysulfide
Examples of Aqueous materials
Alginate, Agar
Non-aqueous material examples
Polysulfide
Polyesther
Vinyl polysiloxane (vps)
Gypsum material “plaster”
Type II material
B- hemihydrate
Gypsum material “stone”
Type III material
🐟-hemihydrate
Gypsum material “die/high strength”
Type IV material
Requires least amount of water
🐟-hemihydrate
Tooth whitening processes target extrinsic or intrinsic stains
Intrinsic
Extrinsic stain should be removed before treatment
Most effective tooth whitening material
Carbamide peroxide
What are inlays and casting wax used for
Used to prepare patterns
What is baseplate wax used for
Used for a occlusal rims and for holding fake teeth into place w baseplate during making of dentures
Sticky wax is used for
Holding broken pieces of dentures together
Becomes sticky when heated
Utility wax is used for
Adopting impression trays to fit individuals
Boxing wax is used for
Used to take impression of occlusion
To decrease setting time of gypsum material you should
Use cold water or borax
To accelerate the setting time of gypsum materials you should
Use hot water or add potassium sulfate
