DENT 252 Question and answers verified to pass 2024/2025
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Course
DENTAL MATERIALS
Institution
DENTAL MATERIALS
DENT 252 Question and answers verified to pass 2024/2025 DENT 252: Final
Hydrocolloid - correct answer Materials used to obtain preliminary and final impressions
Sol - correct answer Hydrocolloid in its more liquid state
Gel - correct answer Hydrocolloid in a rubbery or semi-hard st...
DENT 252: Final
Hydrocolloid - correct answer ✔Materials used to obtain preliminary and final
impressions
Sol - correct answer ✔Hydrocolloid in its more liquid state
Gel - correct answer ✔Hydrocolloid in a rubbery or semi-hard state
Syneresis - correct answer ✔The ability of the hydrocolloid material to lose
water and shrink if not kept in a humid environment
Imbibition - correct answer ✔the ability of the hydrocolloid to gain water and
expand if submerged in water
irreversible hydrocolloid - correct answer ✔supplied as a powder and mixed
with water to form a viscous sol, alginate
reversible hydrocolloid - correct answer ✔supplied as a gel, heated to
change from a gel to sol -- agar
Dental models - correct answer ✔three-dimensional reproductions of the
teeth and the surrounding soft tissues of the maxillary and mandibular arches
2 minutes - correct answer ✔How long is the total working time for a normal
set alginate?
, up to 4 1/2 minutes - correct answer ✔Once a normal set is placed in the
mouth, how long until it can be taken out?
1 minute 15 seconds - correct answer ✔how long is the total working time for
a fast set alginate?
1-2 minutes - correct answer ✔Once a fast set is placed in the mouth, how
long until it can be taken out?
1 year - correct answer ✔How long is the shelf life for alginate?
smooth and creamy - correct answer ✔How should mixed alginate material
look?
grainy - correct answer ✔What does a bad mix of alginate look like?
model plaster, dental stone and high-strength stone - correct answer ✔3
types of plaster products
Model plaster - correct answer ✔-plaster of paris
-white
-used for pouring preliminary impressions
weakest
dental stone - correct answer ✔-yellow
-stronger and denser
high-strength stone - correct answer ✔-densite
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