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61 Cards in this Set

  • Front
  • Back

What is the most common acrylic monomer?

Methyl Methacrylate

When were acrylic resins first used in dentistry?

1940's

What does cross linking do to an acrylic resin?

Improves mechanical properties and toughness

Name three types of resin systems used in dentistry

Cold cure/Chemical


Heat cure


Light activated/Dual Cure

Complete Dentures are held in place by?

Suction

Porcelain teeth in dentures are rarely used because they...?

Wear opposing teeth, make noise

What is the first step in constructing a denture?

Take impressions, construct baseplate and wax rims

What determines the patient's midline?

Wax Rims

When the denture teeth are set in wax it is called the ?

Denture Setup

Partial dentures are supported by what?

Natural teeth and alveolar ridge

What part of the partial denture goes around the abutment teeth?

Clasps

How can the fit of an old denture be improved?

Relining

What is an immediate denture?

Denture placed at the same appt where teeth are extracted

How can a dental hygienist help keep a denture clean?

Remove calculus

What is an edentulous atrophic mandible?

Pt has no teeth, alveolar bone has resorbed

Name three contraindications for implants

Smoking, diabetes, inability to maintain implant

Name five materials that have been used for implants

Gold, ceramic, polymers, titanium, apatite-coated titanium

What is the most common implant material?

Titanium

Name three types of implants

Endosseous, transosseous, subperiosteal

Which type of implant is the most commonly used?

Endosseous

Which type of implant has been used to stabilize a mandibular denture?

Subperiosteal (and transosseous)

What is osseointegration?

Attachment of molecules, fibers, cells, and tissues to implants

In preparing the bone for an implant it must not be heated more than __ degrees?

117

What are the four stages in placing an implant?

Implant, Abutment, Cylinder, Crown

Who is responsible for plaque control on the implant?

The patient

Why shouldn't a hygienist use conventional instruments with implants?

Metal damages the implants

Name three uses of implants in dentistry

Crowns, bridges, stabilize dentures

The removing of material by a shearing off process

Cutting

The wearing away of a surface

Abrasion

Producing the final shape and contour

Finishing

Reducing the sizes of scratches by using a series of finer abrasives

Polishing

A mild abrasive made of calcium carbonate

Chalk

An abrasive made of silica like volcanic glass

Pumice

An abrasive used for metallic restorations such as amalgam

Tin Oxide

A common abrasive used in dentistry on disks, and strips

Aluminum Oxide

The most abrasive material

Diamond

Used in crown preparations

Diamond burs

Vehicles used to make pastes from powder

Water, alcohol, and glycerin

Name five factors that affect the rate of abrasion

1. Hardness


2. Size


3. Shape


4. Pressure


5. Speed


6. Lubrication

Name four reasons why we polish

Adhesion


Make surface smooth


Increase esthetics


Reduce corrosion

Polishing agents remove how many mm of the fluoride-rich layer

3-4

Air powder polishing is used to remove?

Tobacco Stain, Biofilm

Name three types of abrasives used in dentifrices

Phosphates


Carbonates


Silica

What is the most frequently used abrasive in dentifrices?

Silica

What is the most conservative treatment of discolored teeth?

Whitening

Name six factors that affect the success of whitening teeth

1. Type and intensity of stain


2. Whitening agent and its strength


3. Length of exposure of tooth to whitening agent


4. Whitening technique


5. Vitality of the tooth


6. Presence of restoration in tooth

Name two types of intrinsic stain

Posteruptive


Preeruptive

Name three types of Post-eruptive stain

Amalgam


Caries


Endodontic Treatment

Name three types of pre-eruptive stain

Tetracycline


Fluorosis


Dentinogenesis/Amelogenesis Imperfecta

What is a pre-eruptive stain caused by an antibiotic and is difficult to whiten?

Tetracycline

Name three types of whitening agents

Hydrogen Peroxide


Carbamide Peroxide


Sodium Perborate

What is a strong oxidizing agent that decomposes into water and oxygen?

Hydrogen Peroxide

Name two types of whitening techniques

Non-vital, vital

Name two types of non vital whitening

Power (heat/light) whitening


Walking bleach

What % of H2O2 is used in walking bleach?

35%

What % hydrogen peroxide is used in custom trays made by the hygienist?

2-10%

Over the counter Crest Whitestrips contain ___ of hydrogen peroxide

3-7%

The use of __ before and after bleaching may prevent sensitivity

Potassium Nitrate

Patients with anterior restorations must be informed of what?

Whitening will not change shade of restoration

Gingival sensitivity may be reduced by using __ trays

Scalloped

Overbleaching could be a sign of what disorder?

Body Dysmorphic Disorder