Chapter 47 Laboratory Materials and
Procedures
In a separate space away from patient care - correct answer ✔Where would
the dental laboratory be located in a dental office?
Fixed prosthodontics, Orthodontics, Pediatrics - correct answer ✔What
specialty practice may have a more extensive laboratory setup?
Impression and Denture - correct answer ✔What would be an example of a
contaminated item that would be brought into the dental laboratory?
Model trimmer - correct answer ✔What piece of equipment is used to grind
away plaster and stone?
Face Bow - correct answer ✔What piece of equipment does the dentist use
to determine centric relation on a diagnostic model?
7 - correct answer ✔What is the most common wax spatula size used in the
laboratory?
Cast - correct answer ✔What is another term for a dental model?
Gypsum - correct answer ✔What dental materials are used to make dental
models?
plaster, stone, High-strength stone - correct answer ✔What are the 3 forms
of gypsum?
, (100g/50ml) - correct answer ✔What is the water to powder (g/ml) ratio for
plaster?
Powder to Water - correct answer ✔When mixing gypsum materials, do you
add powder to water or water to powder?
Mixing bowl and spatula - correct answer ✔In what are gypsum materials
mixed?
Anatomic and art - correct answer ✔What are the two parts of a dental
model?
Most Posterior Region - correct answer ✔When pouring an impression,
where in the maxillary impression do you begin to place the gypsum material?
40-60 minutes - correct answer ✔How long should you wait before
separating the model from the impression?
Maxillary - correct answer ✔Which of the two models (maxillary or
mandibular) do you begin measuring and trimming first?
Anterior Portion - correct answer ✔What area on the maxillary and
mandibular model is trimmed differently?
Wax bite - correct answer ✔What should be placed between the two models
when one is trimming them together?
Procedures
In a separate space away from patient care - correct answer ✔Where would
the dental laboratory be located in a dental office?
Fixed prosthodontics, Orthodontics, Pediatrics - correct answer ✔What
specialty practice may have a more extensive laboratory setup?
Impression and Denture - correct answer ✔What would be an example of a
contaminated item that would be brought into the dental laboratory?
Model trimmer - correct answer ✔What piece of equipment is used to grind
away plaster and stone?
Face Bow - correct answer ✔What piece of equipment does the dentist use
to determine centric relation on a diagnostic model?
7 - correct answer ✔What is the most common wax spatula size used in the
laboratory?
Cast - correct answer ✔What is another term for a dental model?
Gypsum - correct answer ✔What dental materials are used to make dental
models?
plaster, stone, High-strength stone - correct answer ✔What are the 3 forms
of gypsum?
, (100g/50ml) - correct answer ✔What is the water to powder (g/ml) ratio for
plaster?
Powder to Water - correct answer ✔When mixing gypsum materials, do you
add powder to water or water to powder?
Mixing bowl and spatula - correct answer ✔In what are gypsum materials
mixed?
Anatomic and art - correct answer ✔What are the two parts of a dental
model?
Most Posterior Region - correct answer ✔When pouring an impression,
where in the maxillary impression do you begin to place the gypsum material?
40-60 minutes - correct answer ✔How long should you wait before
separating the model from the impression?
Maxillary - correct answer ✔Which of the two models (maxillary or
mandibular) do you begin measuring and trimming first?
Anterior Portion - correct answer ✔What area on the maxillary and
mandibular model is trimmed differently?
Wax bite - correct answer ✔What should be placed between the two models
when one is trimming them together?
