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Severe early childhood caries is defined as _______________.

A. any sign of smooth-surface caries in a child younger than 3 years of ageB. one (1) or more cavitated, missing (due to caries) or filled smooth-surface surfaces in primary maxillary anterior teethC. a decayed, missing (due to caries), or filled score of greater than 5 in a four-year-oldD. All the above.

An indication for full coverage of posterior primary teeth is _______________.

A. teeth that have undergone pulp therapyB. teeth with large interproximal lesionsC. teeth that will exfoliate within three monthsD. A and B

The technique with the poorest aesthetics for restoring primary posterior teeth is _______________.

A. stainless steel crownsB. open-faced stainless steel crownsC. pre-veneered stainless steel crownsD. zirconia crowns

The most costly procedure for restoring primary posterior teeth is _______________.

A. stainless steel crownsB. open-faced stainless steel crownsC. pre-veneered stainless steel crownsD. zirconia crowns

A 12A rubber dam clamp is used for clamping the _______________.

A. maxillary left second primary molar and mandibular right second primary molarB. maxillary right second primary molar and mandibular left second primary molarC. the first primary molarsD. a partially erupted first permanent molar

When treating a posterior tooth with interproximal lesions, only that tooth needs to be isolated with a rubber dam.

A. TrueB. False

The rubber dam may be stabilized by using a _______________.

A. wooden wedgeB. small piece of rubber dam materialC. dental flossD. All the above.

The advantage(s) of isolation with a high-speed, vacuum isolation system is _______________.

A. it does not require the use of local anesthesiaB. it allows visibility in multiple quadrantsC. it provides greater deflection of the gingival tissuesD. A and B

Stainless steel crowns are _______________.

A. unaestheticB. less durable than other restorationsC. more expensive than other restorationsD. A and C

An advantage of an open-faced, stainless steel crown is _______________.

A. moisture and hemorrhage is not a factor when placing the facingB. placement time is less than other techniquesC. durability,bretention and aesthetics are goodD. None of the above.

When preparing a tooth for a stainless steel crown _______________.

A. reduce the occlusal surface by 1.0 to 1.5 mmB. reduce the buccal and the lingual surface by 0.5 mmC. all surfaces are reduced by 1 mmD. all surfaces are reduced by 0.5 mm

When selecting the correct size stainless steel crown _______________.

A. fit the crown after decay removalB. fit the crown after preparation of the toothC. before removal of decay place the occlusal surface of the crown against the occlusal surface of the toothD. measure the unprepared tooth with a caliper

When properly seated, stainless steel crowns should _______________.

A. be seated in hypo-occlusionB. extend 1 mm below the gingival marginC. be crimped to insure a good marginal fitD. B and C

The facing on an open-faced, stainless steel crown may be placed _______________.

A. immediately after the stainless steel crown is cementedB. once the cement is setC. when saliva is presentD. when blood is present

The window on an open-faced, stainless steel crown is extended _______________.

A. just short of the occlusal edgeB. gingivally to the height of the gingival crestC. mesiodistally to the line anglesD. All the above.

When finishing the composite facing on an open-faced, stainless steel crown _______________.

A. run an abrasive disk from the metal to the resinB. run an abrasive disk from the resin to the metalC. place flowable composite over the filled composite prior to finishingD. reduce the composite just short of the incisal edge

A disadvantage of pre-veneered stainless steel crowns is _______________.

A. they are more expensive than stainless steel crownsB. they take more time to place than stainless steel crownsC. the tooth is adjusted to fit the crown rather than adjusting the crown to fit the toothD. All the above.

To adapt the margins of a pre-veneered crown to the tooth _______________.

A. crimp the margins of pre-veneered crown with a 137 Gordon plierB. crimp only the labial margin of the pre-veneered crown with a 137 Gordon plierC. crimp only the lingual margin of the pre-veneered crown with a 137 Gordon plierD. never crimp the margins of a pre-veneered crown

Which statement is true about zirconia crowns?

A. They are thicker than stainless steel crowns.B. They cannot be crimped to fit the tooth.C. They are cemented with glass ionomer cement.D. All the above.

Zirconia crown length may be adjusted _______________.

A. with crimping scissorsB. with a high-speed, fine-diamond with lots of waterC. Both of the above.D. None of the above.

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Full Coverage Aesthetic Restoration of Posterior Primary Teeth
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