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Upon completion of this course, the student will be able to:
A. Describe the characteristics of dental materials related to: classes
of dental materials, structure, physical characteristics, mechanical
characteristics, and biologic characteristics.
B. Identify dental (restoration/prosthesis) examples of each type of
class of material.
C. Assess specific materials by comparing the actual characteristics to
the ideal characteristics for materials to be used within the mouth
to repair or replace oral tissues.
D. Perform the steps necessary to place either a light-curing or self-
curing sealant when presented with a client who has explorer-
detectable deep pits and fissures.
E. Identify the technique steps and associated rationales for amalgam
finishing and polishing.
F. Describe the clinical technique for the appropriate handling and
manipulation of an alginate impression material (proportioning,
mixing, placement and removal of tray from mouth, pouring and
separation of the cast).
G. Describe the type of cements useful for a special application as a
periodontal dressing.
H. Compare the composition and properties of the materials used as
luting cements.
I. Describe the procedure for placement and finishing of a temporary or
interim restoration such as zinc oxide eugenol temporary restorative
material.
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A. Characteristics of Dental Materials
1. Classes of Materials
a. Metals
(1) amalgam
(2) gold crown
(3) gold inlay/onlay
(4) bridge - gold/porceleain-fused-to-metal
b. Ceramics
(1) porcelain-cast ceramic onlay
(2) cast ceramic crown
c. Polymers
(1) dentures
(2) temporary acrylic bridge
(3) pit and fissure sealant
(4) esthetic composite restoration (e.g.molar)
2. Structure of Materials
a. Bonding
b. Atomic Arrangements
3. Physical Characteristics
a. Thermal and Electrical Properties
b. Solubility and Absorption
c. Adhesion
d. Color and Esthetics
e. Corrosion
4. Mechanical Characteristics
a. Types of Forces
b. Stress and Strain
c. Other Properties
5. Biologic Characteristics
6. Characteristics of the Ideal Dental Material
a. Biocompatible
b. Mechanically Stable and Durable
c. Resistant to Corrosion or Chemicals
d. Dimensionally Stable
e. Minimal Thermal and Electrical Conductivity
f. Esthetic
g. Easy to Manipulate
h. Adhere to tissues
i. Tasteless and Odorless
j. Cleanable/Repairable
k. Cost Effective
7. Considerations Related to Health and Safety Issues
a. Occupational Safety (Hazard Communications Standard-OSHA)
b. Prevention of Disease Transmission--Protocols for Related
Client Care Procedures
c. Protection of the Environment--Disposal of Hazardous
Materials
B. Sealants
1. Types of Sealant Materials
a. comparison of sealant systems
2. Application Principles and Methods
3. Tooth Selection
4. Applying Sealants
a. equipment
b. Operational equipment dependent on sealant system
c. Infection Control Protocol
5. Technique Steps and Rationale
6. Extrinsic Stain and Plaque Removal
7. Isolation and Drying
8. Acid Conditioning
9. Sealant Placement
10. Post Application Inspection
11. Retention
12. Follow-up Evaluation
C. Amalgam
1. Uses
2. Mixing and Handling
3. Setting Reaction
4. Characteristics and Properties
5. Clinical Success
6. Finishing Procedures
7. Factors Affecting Finishing
8. Polishing
a. Composition of abrasives
b. Prophylaxis pastes, dentifrices and denture cleansers
9. Margination
10. Infection Control Protocol for Finishing and Polishing Amalgam
Restorations
D. Impression Materials
1. Uses in Dentistry
2. Composition
a. Inelastic materials
b. Elastic materials: hydrocolloid
(1) Reversible hydrocolloid (agar)
(2) Irreversible hydrocolloid (alginate)
a) Equipment
b) Proportioning
c) Mixing
d) Filling tray and taking impression
e) Clean-up and disinfection
c. Elastic materials: elastomers
(1) Polysulfide
(2) Condensation silicone
(3) Polyether
(4) Addition silicone
3. Infection Control Protocol--Impression Materials
E. Cements
1. Uses of Cements
2. Types of Cements
3. Handling and Placement of Cements
4. Characteristics of Cements
5. Infection Control Protocol--Cements
F. Temporary Restoratives
1. Uses of Temporary Restoratives in Dental and Dental Hygiene Care
2. Types of Temporary Restoratives
a. Zinc oxide eugenol
b. Acrylic
c. Aluminum crowns, composites, bold
3. Mixing and Placing an Acrylic Temporary Bridge
4. Temporary Restorative
a. single tooth temporary
b. temporary bridge
5. Infection Control Protocol--Temporary Restorations
G. Implants
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Dental Hygiene Theory & Practice. Darby. M. and Walsh, M. WB Saunders,
Philadelphia, 1996
Periodontal Instrumentation, Pattison, A. and Pattison, G., Norwalk:
Appleton and Lange, 1992
Clinical Practice of the Dental Hygienist 7th Ed.. Wilkins, E.M., Malvern:
Williams & Wilkins. 1990
SUPPLEMENTARY TEXT: Medical Emergencies in the Dental Office, 4th Ed.,
St. Louis, CV Mosby, 1993