Vocabulary Flashcards
Composite resins
Tooth-colored materials composed of an organic resin matrix inorganic filler particles, a coupling agent, and coloring pigments
Organic resin matrix
Thick liquids made up of two or more types of of organic molecules (polymers) that form a matrix around filler particles.
Inorganic filler particles
Fine particles of Quartz, silica, or glass that give strength and wear resistance to a material.
Silane Coupling Agent
A chemical that helps to bind the filler particles to the organic matrix.
Pigments
Coloring agents that give composites their color
Monomers
High molecular weight molecules with double carbon bonds that link to form polymers
Self-cured composites
Composites that polymerize by a chemical reaction when two filled resin pastes are mixed together
Light-Cured Composites
Single-paste composites that polymerize when a photosensitive chemical is activated by light in the blue wave range.
Dual-Cured Composites
Composites that contain components of light-activated and chemically activated materials. When the two parts are mixed together, it polymerizes by a chemical reaction that can be accelerated by blue light activation.
Macrofilled composites
An early generation of composites that contained filler particles ranging from 10-100 microns
Microfilled composites
Composites that contain very small filler particles averaging .04 microns in diameter
Hybrid Composites
Composites that contain both fine fill (2-4microns) and microfill (.04-.2 microns) particles to obtain the strength of a Macrofill and the polishability of a microfill
Microhybrids
Hybrid composites that contain fillers that are smaller fine-particle (.04-1 microns) and microsized fillers
Nanohybrids
Microhybrids to which nanosized fillers have been added
Universal Composites
Composites that have physical and mechanical properties such as strength and polishability that allow them to be used in both the anterior and posterior parts of the mouth.
Nanocomposites
Composites that contain all nanosized fillers to enhance physical properties
Flowable composites
Light-cured, low viscosity composite resins
Bulk-Fill Composites
Composites with greater depth of cure that permit placement in large increments up to 4 mm thick instead of the standard 2 mm; their use speeds up the filling process.
Elastic Modulus
A measure of the stiffness of a material; the higher the elastic modulus the stiffer the material
Incremental placement
A technique for composites that places and cures small increments individually to reduce the overall polymerization shrinkage and shrinkage stress in the overall restoration.
Indirect-Placement Esthetic Materials
Tooth-colored materials that are used to construct restorations outside of the mouth in the dental laboratory or at chairside on replicas of the prepared teeth. They are later cemented to the teeth.
Glass Ionomer Cements (GICs)
Self-cured, tooth colored, flouride releasing restorative materials that bond to tooth structure without an additional bonding agent.
Hybrid (or Resin-Modified) Glass Ionomer
A glass Ionomer to which resin has been added to improve its physical properties.
Nano-ionomers
Glass ionomers that contain nanosized filler particles to enhance their physical properties
