Introduction to Dental Materials
Dental materials are also known as..?
What is, Biomaterials.
An electrical current transmitted between two dissimilar metals in a solution of electrolytes.
What is, galvanism.
Materials that set through a timed chemical reaction with the combination of a catalyst and base.
What is, Chemical set materials.
A tenacious layer of debris resulting from cutting the tooth during cavity preparation.
What is, smear layer.
A direct placement esthetic material composed of an organic matrix, inorganic filler particles, a coupling agent, and coloring pigments.
What is, composite resin.
The approach to oral health care that requires the judicious integration of systematic assessments of clinically relevant scientific evidence, relating to the patient's oral medical history, with the dentist's clinical expertise and the patient's treatment needs and preferences is known as...
What is, Evidence-based dentistry
The measurement of change in volume or length in relationship to change in temperature.
What is, Coefficient of Thermal Expansion.
Materials used to fabricate restorations outside of the mouth that are subsequently place into the mouth.
What is, indirect restorative materials.
Leakage of fluid and bacteria that occurs at the interface of the tooth and the restoration margins and is caused by microscopic gaps.
What is, microleakage.
The joining of monomers end-to-end to form chains or networks of polymers often causing a material to harden.
What is, Polymerization.
Which president was known to wear spring-closed dentures?
What is, George Washington.
The property of a material that allows it not to impede or adversely affect living tissue.
What is, Biocampatible.
The stress at which plastic deformation begins; also called yield point on a stress-strain curve.
What is, yield stress.
This type of bonding system can bond to tooth structure as well as most restorative dental materials.
What is, Universal bonding system.
Self-cured, tooth-colored fluoride-releasing restorative materials that bond to tooth structure without an additional bonding agent.
What is, Glass ionomer cement.
The agency responsible for regulating dental materials.
What is, the U.S. Food and Drug Administration.
Distortion or deformation that occurs when an object cannot resist a force.
What is, strain.
Restorations expected to last several days or weeks.
These projections lock into the tooth, creating a mechanical bond with the resin bonding agent.
What is, resin tags.
Light-cured, low-viscosity composite resins.
What is, flowable composites.
Who developed an acceptable amalgam formula?
What is, G.V. Black.
The act of sticking two things together.
The lapse of time from the start of mixing the material until it begins to harden and is no longer workable because it has reached its initial set.
What is, working time.
This ingredient in bonding systems dissolves the smear layer.
What is, phosphoric acid.
This material is placed interproximally to hold the matrix band against the tooth to seal the gingival margin, so that the restorative material does not extend out of the cavity preparation and cause an overhang.