Quiz 9 Flashcards
What percentage of energy can a custom-fit mouth guard absorb from a traumatic hit to the mouth?
A custom-fit mouth guard can absorb about 80% of the energy from a traumatic hit to the mouth.
Which of the following would not be a necessary function of a posterior provisional restoration?
Eliminating migration
Why must care be taken in the fabrication of provisionals using acrylic materials?
To prevent them from locking on the tooth.
Which of the following would not make a good extracoronal provisional restoration?
Zinc oxide eugenol cement
Which type of tooth aligner would be used for minor tooth movement?
Removable acrylic base with embedded wires
What is the desirable thickness of a sports guard for heavy contact sports?
A sports guard thickness of about 4 mm is desirable for heavy contact sports.
Which statement best describes a soft guard?
Requires less time to adjust
What is the most common choice of matrix or template material for multi-unit and indirect provisional techniques?
Vacuum-formed plastic
Why are one or two small holes usually placed in the occlusal portion of the preformed crown form?
To allow excess resin or composite material to flow out when the crown form is seated.
What is a risk factor for obstructive sleep apnea (OSA)?
All of the above
What can a patient use to replace a provisional crown if it comes off when the dental office is closed?
Denture adhesive
Which factor associated with a provisional restoration is responsible for irritation, inflammation, and recession of the gingiva?
Poor marginal coverage
In what situation would the dentist prescribe a night guard for a patient?
Only b and c are correct.
Which of the following is the most durable of the preformed crowns?
Stainless steel crown
What would not occur if the provisional crown does not contact the adjacent teeth?
Food impaction
How long would it take a prepared tooth without occlusal/incisal and proximal contact to migrate?
Days
What type of provisional crown is crimped and contoured at the contact and margins?
Stainless steel
What home care instructions would be given to a patient with a provisional restoration?
Brush and floss the restoration, sliding the floss through the cervical embrasure.
What is the provisional of choice if an anterior tooth is fractured or badly decayed?
Preformed
What is the most common use of a stainless steel crown?
Crown prep on a primary molar
