A) restore function to the area of the mouth.
B) keep the patient comfortable.
C) maintain function to the area of the mouth.
D) all of the above.
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A) not extend
B) extend one to three mm
C) extend four to six mm
D) extend six to eight mm
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A) reduces time required for the procedure.
B) the pre-formed shell comes with anatomic features of natural teeth.
C) the monomer setting time is less than 90 seconds.
D) both a and b.
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A) The crowns are supplied in many types of materials, depending on the location of the provisional.
B) Prefabricated crowns can be used for posterior and anterior preparations.
C) The crowns are available for bridges as well as for single units.
D) Prefabricated crowns can be shaped to match adjacent teeth.
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A) To reduce the chance of cross-contamination
B) To aid in the setting time of the acrylic being used
C) To make it easier to remove the acrylic after it is set
D) To keep the alginate from distorting
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A) 5
B) 10
C) 12
D) Enough to wet the powder
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A) removing the gingival retraction cord.
B) taking a periapical radiograph.
C) checking the occlusion.
D) polishing the provisional.
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A) are stock crowns and come in a limited selection of size, shape, and shades.
B) are thin and not esthetically pleasing.
C) can be used as a mold to fabricate a custom provisional.
D) both a and c.
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A) before the dentist prepares the teeth.
B) after the dentist prepares the teeth.
C) anytime during the preparation appointment.
D) after the final impression is made.
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A) below (infraocclusion)
B) even with
C) above (supraocclusion)
D) even with or above
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A) can only be used for anterior teeth.
B) can be the most time-consuming to make.
C) is hard to fit the prepared tooth.
D) does not look natural.
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A) used in cases where strength is essential.
B) commonly used for the primary teeth.
C) custom fabricated.
D) both a and b.
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A) Porcelain veneers
B) Implants or periodontal therapy
C) Full gold cast crowns
D) Porcelain jacket crowns
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