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Dental Materials > Whitening > Flashcards

Whitening Flashcards

1
Q

Exogenous vs Endogenous

A

Extrinsic vs Intrinsic
food, beverage, tobacco
tetracycline, pulp trauma, developmental conditions

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2
Q

Contraindications for Vital Tooth Whitening

A

large pulp, sensitivity, recession, enamel loss/microcracks, restorations, caries, allergies, pregnant, nursing

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3
Q

Contraindications for Light Activated Whitening

A

radiation/chemo, melanoma, photosensitive drugs (antibiotics, acne meds, antimalarials, some heart meds

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4
Q

Hydrogen Peroxide breaks down into:

A

oxygen + water

*breaks down/works faster than Carbamide

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5
Q

Carbamide breaks down into:

A

Hydrogen peroxide + urea

*1/3^

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6
Q

Hydrogen Peroxide

A

oxidizing agent that produces free radicals: water + oxygen - combines w stain to make stains soluble
whitening power in first 30-60 min

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7
Q

Carbamide Peroxide

A

more stable, 1/3 power of HP, active up to 6 hours

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8
Q

Non-Vital Whitening

A

“walking bleach”

30-35% HP sealed in pulp chamber for 2-7 days

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Dental Materials (10 decks)

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