Dental Materials chp 10
Dental waxes are usually ____ molecules that have ____ molecular weights.
a. inorganic; high
b. inorganic; low
c. organic; high
d. organic ; low - correct answer ✔c. organic; high
Which of the following waxes are categorized as pattern waxes?
a. baseplate wax
b. utility wax
c. inlay wax
d. A, B, and C
e. A and C - correct answer ✔e. A and C
baseplate wax and inlay wax
Which of the following waxes are categorized as processing waxes?
a. beading wax
b. sticky wax
c. inlay wax
d. A, B, and C
e. A and B - correct answer ✔e. A and B
beading wax and sticky wax
Organic molecules in waxes are composed primarily of long chains containing
carbon, hydrogen, and oxygen. The long chains allow waxes to be flexible at
room temp. or sticky as solids or liquids.
, a. correct; correct
b. correct; incorrect
c. incorrect; correct
d. incorrect; incorrect - correct answer ✔a. correct; correct
Which statement (s) is/are correct about waxes?
a. melt at a single temp.
b. are mixtures of different components
c. do not have a discrete melting point at one temp.
d. A and B
e. B and C - correct answer ✔e. B and C
are mixtures of different components and do not have a discrete melting point
at one temp.
Which of the following statements is correct about the property of flow for
dental waxes?
a. flow is highly dependent on temp and time.
b. for pattern waxes, flow at room temp. is a highly desirable property.
c. for processing waxes, flow at room temp. is a highly desirable property.
d. A and B
e. A and C - correct answer ✔e. A and C
flow is highly dependent on temp and time and for processing waxes, flow at
room temp. is a highly desirable property.
Which material listed has the highest coefficient of thermal expansion?
a. waxes
b. ceramics
Dental waxes are usually ____ molecules that have ____ molecular weights.
a. inorganic; high
b. inorganic; low
c. organic; high
d. organic ; low - correct answer ✔c. organic; high
Which of the following waxes are categorized as pattern waxes?
a. baseplate wax
b. utility wax
c. inlay wax
d. A, B, and C
e. A and C - correct answer ✔e. A and C
baseplate wax and inlay wax
Which of the following waxes are categorized as processing waxes?
a. beading wax
b. sticky wax
c. inlay wax
d. A, B, and C
e. A and B - correct answer ✔e. A and B
beading wax and sticky wax
Organic molecules in waxes are composed primarily of long chains containing
carbon, hydrogen, and oxygen. The long chains allow waxes to be flexible at
room temp. or sticky as solids or liquids.
, a. correct; correct
b. correct; incorrect
c. incorrect; correct
d. incorrect; incorrect - correct answer ✔a. correct; correct
Which statement (s) is/are correct about waxes?
a. melt at a single temp.
b. are mixtures of different components
c. do not have a discrete melting point at one temp.
d. A and B
e. B and C - correct answer ✔e. B and C
are mixtures of different components and do not have a discrete melting point
at one temp.
Which of the following statements is correct about the property of flow for
dental waxes?
a. flow is highly dependent on temp and time.
b. for pattern waxes, flow at room temp. is a highly desirable property.
c. for processing waxes, flow at room temp. is a highly desirable property.
d. A and B
e. A and C - correct answer ✔e. A and C
flow is highly dependent on temp and time and for processing waxes, flow at
room temp. is a highly desirable property.
Which material listed has the highest coefficient of thermal expansion?
a. waxes
b. ceramics
