Chapter 6: Composites, Glass Ionomers, and Compomers Flashcards
Tooth-colored materials that can be placed directly into the cavity preparation without being constructed outside of the mouth first
Direct-Placement Esthetic Materials
Tooth-colored materials composed of an organic resin matrix, inorganic filler particles, a coupling agent, and coloring pigments
Composite Resins
Thick liquids made up of two or more types of organic molecules (polymers) that form a matrix around filler particles
Organic Resin Matrix
Fine particles of quartz, silica, or glass that give strength and wear resistance to a material
Inorganic Filler Particles
A chemical that helps to bind the filler particles to the organic matrix
Silane Coupling Agent
Coloring agents that give composites their color
Pigments
High molecular weight molecules with double carbon bonds that link to form polymers
Monomers
Composites that polymerize by a chemical reaction when two filled resin pastes are mixed together
Self-cured composites
Single-paste composites that polymerize when a photosensitive chemical is activated by light in the blue wave range
Light-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
Dual-cured composites
An early generation of composites that contained filler particles ranging from 10-100 microns
Macrofilled composites
Composites that contain very small filler particles averaging 0.04 microns in diameter
Microfilled composites
Composites that contain both fine fill (2 to 4 microns) and microfill (0.04 to 0.2 micron) particles to obtain the strength of a macrofill and the polishability of a microfill
Hybrid composites
Hybrid composites that contain fillers that are smaller fine-particle (0.04 to 1 micron) and microsized fillers
Microhybrids
Microhybrids to which nanosized fillers have been added
Nanohybrids
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
Universal composites
Comopsites that contain all nanosized fillers to enhance physical properties
Nanocomposites
Light-cured, low-viscosity composite resins
Flowable composites
Composites with greater depth of cure that permit placement in large increments up to 4 mm thick instead of the standard 2mm; their use speeds up the filling process
Bulk-fill composites
A measure of the stiffness of a material; the higher the elastic modulus the stiffer that material
Elastic modulus
A technique for composites that places and cures small increments individually to reduce the overall polymerization shrinkage and shrinkage stress in the restoration
Incremental placement
Tooth-colored materials that are sued 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.
Indirect-Placement Esthetic Materials
Self-cured, tooth-colored, fluoride-releasing restorative materials that bond to tooth structure without additional bonding agent.
Glass Ionomer Cements (GICs)
A glass ionomer to which resin has been added to improve its physical properties
Hybrid (or-resin modified) glass ionomer
Glass ionomers that contain nanosized filler particles to enhance their physical properties
Nano-ionomers
Composite resin that has polyacid, fluoride-releasing groups added
Compomer
