The "white line" which shows up occasionally when finishing a composite restoration between the restoration and tooth structure is caused by what?

The "white line" which shows up occasionally when finishing a composite restoration between the restoration and tooth structure is caused by what?A . The inherent optical properties of composite which naturally create a halo effect around the marginB . Overheating the composite during the finishing processC . Polymerization shrinkage, which...

September 15, 2019 No Comments READ MORE +

Which of the following is also true?

The long axis of a tooth inclines distally in the inciso-apical direction. Which of the following is also true?A . Inclination increases from incisors to cuspidsB . Inclination decreases from incisors to cuspidsC . Inclination is constant from incisors to cuspidsD . Inclination decreases from centrals to laterals and increases...

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The mucogingival esthetic problem which currently has the worst prognosis for successful correction is what?

The mucogingival esthetic problem which currently has the worst prognosis for successful correction is what?A . Buccal root recessionB . Thin attached gingival tissueC . Loss of interdental papillaD . Localized alveolar ridge defectView AnswerAnswer: A

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Following tray bleaching, the recommended delay before initiating composite bonding is how long?

Following tray bleaching, the recommended delay before initiating composite bonding is how long?A . Three daysB . One weekC . One monthD . Six weeksView AnswerAnswer: B

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Centric relation is:

Centric relation is:A . only about the teethB . only about the jointC . about the teeth and the jointD . about the teeth, the joint, and the slide into maximal intercuspationView AnswerAnswer: D

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When preparing for posterior porcelain to zirconia crown, the recommended occlusal reduction should be:

When preparing for posterior porcelain to zirconia crown, the recommended occlusal reduction should be:A . 1.0 mm.B . 1.5 mm.C . 2.0 mm.D . 2.5 mm.View AnswerAnswer: B

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What does platform switching describe?

What does platform switching describe?A . A reduced offset of the diameter of the abutment to the diameter of the implantB . An increased offset of the diameter of the abutment to the diameter of the implantC . The contours of the final crown over the implantD . The bone...

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On average, the distance from the base of the gingival sulcus to the alveolar bone is:

On average, the distance from the base of the gingival sulcus to the alveolar bone is:A . 2.0 mm.B . 3.0 mm.C . 4.0 mm.D . 5.0 mm.View AnswerAnswer: A

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Which of the following is a disadvantage of subepithelial connective tissue (CT) grafting?

Which of the following is a disadvantage of subepithelial connective tissue (CT) grafting?A . Tissue and color blendB . Primary closure of the donor siteC . Two surgical sitesD . Change in amount of keratinized tissueView AnswerAnswer: C

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What minimum distance is needed between an implant and the root of a tooth in order to keep the tooth's bony attachment intact and prevent horizontal bone loss?

What minimum distance is needed between an implant and the root of a tooth in order to keep the tooth's bony attachment intact and prevent horizontal bone loss?A . mmB . mmC . mmD . mmView AnswerAnswer: B

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