TCDHA DENTAL MATERIALS TEST 3 EXAM LATEST 2026
UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) GRADE: A+|STATUS: GUARANTEED PASS
what are direct placement esthetic materials? - Answers -tooth colored materials that can be
placed directly into the cavity preparation without being constructed outside the mouth first
what is composite resins? - Answers -tooth colored materials composed of an organic resin
matrix, inorganic filler particles, a coupling agent and a cooring pigment
what is organic resin matrix? - Answers -thick liquids made up of two or more types of organic
molecules (polymers)that form a matrix around filler particles
what is 'inorganic filler particles'? - Answers -fine particles of quarts,silica, or glass that gives
strength and wear resistance to a material
what is silane coupling agent? - Answers -a chemical that helps to bind the filler particles to the
organic matrix
pigment - Answers -coloring agents that give composites their color
1|Page
,monomers - Answers -high molecular weight molecules with double carbon bonds that link to
form polymers
self cured composites - Answers -comosites that polyymerize by a chemical reacting when two
filled resin pastes are mixed together
light cured composites - Answers -single paste composites that polymerize wehn a
photosensitive chemical is activated by light in the blue wave range
dual cured composite - Answers -when the two parts are mixed it polymerizes by a chemical
reaction that can be accelerated by blue light activation
macrofilled composites - Answers -early generation of composites that contained filler particles
ranging from 10 to 100 microns
microfilled composites - Answers -composites that contain very small filler particles averging
0.04 tmicrons
hybrid composites - Answers -composites that contain both fine fill and microfill particles to
obtain the strength of a macrofill and polishability of a microfill
2|Page
, microhybrids - Answers -hybrid composites that contain fillers that are smaller fine particles and
microsized fillers
nanohybrids - Answers -microhybrids to which nanosized fillers have been added
univeral composites - Answers -have physical and mechanical properties such as strength and
polishability that allow them to be used in both anterior and posterior parts of mouth
flowable composites - Answers -light cured, low viscosity composite resins
bulk-fill composites - Answers -greater depth of cure that permit placement in large increments
up to 4 mm thick. their use speeds up filling process
elastic modulus - Answers -a measure of the stiffness of a material. the higher the elastic
modulus the stiffer the material
incremental placement - Answers -technique for composites that places and cures small
increments individually to reduce the overall polymerization shrinkage and shrinkage stress in
restoration
3|Page
UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) GRADE: A+|STATUS: GUARANTEED PASS
what are direct placement esthetic materials? - Answers -tooth colored materials that can be
placed directly into the cavity preparation without being constructed outside the mouth first
what is composite resins? - Answers -tooth colored materials composed of an organic resin
matrix, inorganic filler particles, a coupling agent and a cooring pigment
what is organic resin matrix? - Answers -thick liquids made up of two or more types of organic
molecules (polymers)that form a matrix around filler particles
what is 'inorganic filler particles'? - Answers -fine particles of quarts,silica, or glass that gives
strength and wear resistance to a material
what is silane coupling agent? - Answers -a chemical that helps to bind the filler particles to the
organic matrix
pigment - Answers -coloring agents that give composites their color
1|Page
,monomers - Answers -high molecular weight molecules with double carbon bonds that link to
form polymers
self cured composites - Answers -comosites that polyymerize by a chemical reacting when two
filled resin pastes are mixed together
light cured composites - Answers -single paste composites that polymerize wehn a
photosensitive chemical is activated by light in the blue wave range
dual cured composite - Answers -when the two parts are mixed it polymerizes by a chemical
reaction that can be accelerated by blue light activation
macrofilled composites - Answers -early generation of composites that contained filler particles
ranging from 10 to 100 microns
microfilled composites - Answers -composites that contain very small filler particles averging
0.04 tmicrons
hybrid composites - Answers -composites that contain both fine fill and microfill particles to
obtain the strength of a macrofill and polishability of a microfill
2|Page
, microhybrids - Answers -hybrid composites that contain fillers that are smaller fine particles and
microsized fillers
nanohybrids - Answers -microhybrids to which nanosized fillers have been added
univeral composites - Answers -have physical and mechanical properties such as strength and
polishability that allow them to be used in both anterior and posterior parts of mouth
flowable composites - Answers -light cured, low viscosity composite resins
bulk-fill composites - Answers -greater depth of cure that permit placement in large increments
up to 4 mm thick. their use speeds up filling process
elastic modulus - Answers -a measure of the stiffness of a material. the higher the elastic
modulus the stiffer the material
incremental placement - Answers -technique for composites that places and cures small
increments individually to reduce the overall polymerization shrinkage and shrinkage stress in
restoration
3|Page
