IMPRETION MATERIALS CHAPTER 46

Is a gelatinous material used to obtain impressions.

COLLOID

Is the process of using your fingers to achieve a closer adaptation of the edges.

BORDER MOLDING

Material has elastic properties ans is made from rubber.

ELASTOMERIC

A foundation or basic ingredients of a material.

BASE

To have something ......

CENTRIC Is to have it centered,such as your mxilary teeth centered over your mandibular teeth.

Is a gelatin-type material derived from seaweed.

AGAR

Is the loss of water,causing shrinkage.

SYNERESIS

Is to bring a material to a desired temperatue and consistency.

TEMPERING

Describes a property of fluids with a high resistance to flow.

VISCOUS,VISCOXITY.

Is the material of choice in dentistry for preliminary impressions.

ALGINATE

Is to transform a material from one physical state to another.

HYSTERESIS

Means water

HYDRO

Is a reproduction of someone's bite with the use of wax or elastomeric material

OCCLUSAL REGISTRATION.

Is a substance that modifies or increases the rate of a chemical reaction.

CATALYST

Is the absortion of water,causing an object to swell

IMBIBITION

An impression would be considered

NEGATIVE PRODUCTION.

Would be considered an expanded function for the certified dental assistant.

IRREVERSIBLE HYDROCOLLID

Which type of stock tray would you select to cover half of an arch?

QUADRANT

Which type of tray allows impressions material to mechanically lock on ?

PERFORATED

Which type of tray would be considered the best choice when taking final impressions?

Custom

Is used to extend the lenght of a tray to accommodate third molars.

BORDER MOLDING

The organic substance of hydrocolloid material

SEAWEED

Why would a fast-set alginate be selceted for taking a preliminary impression?

THE PATIENT HAS A STRONG GAG REFLEX.

Give the powder/WATER RATIO FOR A MAXILLARY I MPRESSION.

3 COOPS OF POWDER TO 3 MEASURES OF WATER.

Hydro means

WATER

Another name for irreversible hydrocolloid

ALGINATE

How is irreversible hydrocolloid mixed.

MIXING BOWL

Where is the reversible hydrocolloid material placed before the impression is taken.

CONDITIONING BATH

Elastomeric materials would be selected for what type of impression?

FINAL

How are elastomeric materials supplied?

PASTE,CARTRIDGE,PUTTY.

Which viscosity of a final impression material is applied first to the prepared tooth or teeth.

LIGHT BODY

Another name for polysulfide.

RUBBER BASE

What system accomplishes the mixing of final impression material for the assistant

SPATULA AND PAD.

What would the dentist use to express the light-body impression material around a prepared tooth?

EXTRUDER WITH TIP.

What system accomplishes the mixing of final impression material for the assistant.

SPATULA AND PAD

Sally used for taking a bite registration.

baseplate wax

What try type is most commomnly selected when ZOE zinc-oxide-eugenol bite registration paste is used.

GAUSE TRAY

Baseplate wax is -------WARMED

Before placement in the patient's mouth for a bite registration.

While the dentist is dispending the syringe material around the prepared tooth,what should the dental assistant be doing during a final impression procedure?

READYING THE TRY WITH HEAVY-BODY MATERIAL.

A preliminary impression is

rinsed,disinfected,wrapped in a moist paper towel,and placed in a precautionary bag.