What are the anchor teeth for a bridge or partial denture?
abutments
What is an agent that causes a chemical reaction?
accelerator
What is a caustic agent use in disinfectants and plastics?
phenol
What is an artificial tooth on a bridge or partial denture?
pontic
What is a tooth filling, bridge, or partial denture?
restoration
What is a negative reaction from a tooth from hot cold?
thermal shock
What types of procedures is glass ionomer used for?
permanent cementation, pit and fissure sealants, liner and dentin bonding agent, for core buildups
What are the two forms of glass ionomer and what do they consist of?
powder- silicate glass containing calcium, aluminum, flouride
liquid- water and polyacrylic acid
What are the properties of glass ionomer?
mechanically and chemically bonds to tooth structure, releases fluoride, complete setting reaction (24 hrs)
How long is the mixing time for glass ionomer?
mix for 1 minute
What was the first cement to chemically bond to tooth structure?
polycarboxylate
What is polycarboxlate cement used for?
permanant cementation, insulating base
What are the two forms of polycarboxylate and what do they consist of?
powder- zinc oxide with small amount of magnesium oxide
liquid- polyacrylic acid and water
How long does is take to polycarboxylate to set?
3-5 minutes
How long do you mix polycarboxylate for?
30-60 seconds
What is the working time for polycarboxylate?
3 minutes
What are the advantages of polycarboxylate?
good thermal insulator, placed under any restorative material, strong, non- irritating to the pulp
What are the disadvantages of polycarboxylate?
difficult to clean, no soothing qualities, high solubility, for temporary restoration, can only be used for 2 months
What are the uses for polycarboxylate?
permanent cementatation, thin mix for orthodonic bridges, a base under permanent restoration, permanent filling
What should be the texture of the mix be for temporary fillings with polycarboxylate?
thick mix
Who can place polycarboxylate as a base?
RDA
What is one of the oldest type of cement?
ZInc Phosphate
What are the uses for zinc phosphate?
permanant cement, insulating base
What are the forms of zinc phosphate? What are the made of?
powder- zinc oxide, magnesium oxide
liquid- phosphoric acid in water
What are the properties of zinc phosphate?
viscosity is affected by mixing time and temo, bonds to tooth by interlocking
What is the mixing time of zinc phosphate?
2 minutes
What is the setting time of zinc phosphate?
5-9 minutes
What do you mix on a cool glass slab?
zinc phosphate
How should zinc phosphate be mixed
slowly and in increments of 10-15 seconds
What should zinc phosphate cement resemble once its mixed?
creamy material
What should zinc phosphate base resemble once its mixed?
thick putty
What are the two types of zinc oxide eugenol cement?
type 1- temporary use
type 2- strongest for permanent cementation
Which cements are soothing to the pulp?
polycarboxylate, zinc oxide eugenol
What are the uses for zinc phosphate eugenol?
permanent and temporary cementation
What is the composition for ZOE type 1?
powder - zinc oxide, resin, zinc acetate, accelerator
liquid- eugenol with clove oil
What is the composition for ZOE type 2?
powder- zinc oxide, alumina, polymers
liquid- combination of eugenol and ethoxybenzic acid
What is available to patients that are sensitive to zinc oxide eugenol?
a non- eugenol form
What is non- eugenol cement available in?
two paste systems, capsules, and syringes
What are the properties of non-eugenol zinc oxide?
very soluble, sedative effect does not require base or liner, not compatible with with composite or acrylic material
What should eugenol not be exposed to?
rubber
What is the mix time for ZOE?
30-60 seconds
What is the mix time for a ZOE two paste system?
10- 15 seconds
What is the setting time for ZOE?
3-5 minutes
What is an ion?
a metal temp crown
What is a provisional?
a temp restoration
How much time does it take to make a permanent crown or bridge to be made by a lab?
2-3 weeks
What are the uses/ purposes for temporary coverage?
protects the prep from thermal changes, prevents changes in occlusion, prevents drifting, protects from fracturing, esthetics
What teeth are stainless steel crown used on?
deciduous teeth and permanent teeth
What is a type of crown that is not durable and only lasts for a few weeks?
aluminum shell
What is the primary use for aluminum shell crowns and what teeth are they used on?
crown preps, posterior teeth only
What is a type of crown that must use a filler?
polycarbonate crown
What is the primary use for a polycarbonate crown and what teeth is it used on?
crown preps, anterior or posterior
What is the most common type of crown and what is it fabricated with?
custom acrylic, fabricated with stint
What are the primary uses of custom acrylic crowns and what teeth are they used on?
crown/ bridge preps, used on posterior or anterior teeth
What are the 9 steps to a basic procedure for temp coverage?
select smallest size w/ contact points
estimate correct height and trim gingival rim
use bell contouring pliers to adjust sides of crown
try crown on tooth
check contact with floss
check marginal integrity
check occlusion with articulating paper
cement wi
What is the criteria for a finished crown?
correct occlusion, marginal integrity, contact points, have anatomy, be comfortable
What can high occlusion result in?
hypersensitivity, trauma to the opposing teeth
What can low occlusion result in?
shifting of teeth
What can short margins result in?
exposed dentin and sensitivity
What can high margins result in?
irritate gums, inflammation, and bleeding
What can no contact points result in?
proper space between teeth
What is the cementation procedure?
cement selection, fill provisional space 3/4 full, remove excess with explorer, check contact areas with floss, rinse, reschedule patient 2-4 weeks later
What can a DA fabricate?
a model
What can an RDA do in regards to fabricating temporaries?
temporary intraorally, cement temporary and remove supragingival cement
What can an RDAEF do in regards to fabricating temporaries?
remove sublingual cement