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56 Cards in this Set
- Front
- Back
The Dental Hygienist's role is to have knowledge of _________________ |
Recommended daily allowances (RDA) |
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Dietary assessment includes: |
Frequency food intake, methods of food prep, cultural or religious dietary considerations, and exercise |
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nutritional factors can alter _________ susceptibility to periodontal disease and modulate the process. |
Host |
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Nutrients that contribute to healing and tissue repair: |
B complex, vitamin C, and dietary calcium |
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Periodontal diseases are ______ caused by nutritional deficiencies. |
NOT (although mal-nutrition may contribute to the progression) |
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skin and mucous membrane relevant vitamins: |
vitamin A, B complex and ascorbic acid (Vit C) |
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Relevant minerals for skin and mucous membrane: |
zinc and iron |
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Altered taste sensations: |
Deficient in: riboflavin, thiamin, zinc, vitamin A, vitamin B |
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Glossitis: |
Deficient in: foliate, niacin, vitamin B12 |
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Angular Cheilitis: |
Deficient in: Foliate, iron, riboflavin, vitamin B12 |
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Delayed wound healing: |
deficient in: Riboflavin, zinc, vitamin A, Vitamin C |
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Healthy snacks: |
unsweetened cereal, plain crackers, wheat toast, unbuttered popcorn, raw veggies, fresh fruits berries, melons, sliced chicken or turkey, tuna, beans and legumes, milk, yogurt, cheese, sugar free pudding. |
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Ultrasonic is a __________ approach utilizing both methods is preferred. |
BLENDED |
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___________________ instrumentation uses rapid energy vibrations of powered instrument tip to fracture calculus, disrupt plaque, and flush perio pockets. |
POWERED |
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The two major types of electronically powered devices are: |
sonic and ultrasonic |
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The two ultrasonic types are: |
piezoelectric ultrasonic and magnetostrictive ultrasonic |
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Electronically powered devices uses ____________ tips. |
water cooled |
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The three modes of action are: |
mechanical removal, cavitation, and water irrigation. |
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Mechanical removal in the modes of action is rapid ____________________ of tip to create microfractures in calculus. |
vibrations |
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Cavitation in modes of action is when _________ flowing over tip disipiates heat produced. |
water |
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______________ irrigation in modes of action washes toxic products and free floating bacteria from the pocket. |
water |
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Magnetostrictive devices are available in two different kilohertz: |
25k or 30k |
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Parkell GOLD (universal tip) |
-mod to heavy supra and sub calculus -use last 2-4 mm at 10-15 degree to the tooth like probe. -lateral and back sides *gold= ginormous |
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Parkell SILVER (slim line tip) |
-light perio root debridement -light stain -de plaqueing of biofilm -lavage/irrigate pocket *silver=simple/slim |
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___mm of tip results in approximately 25% loss in calculus removal ability. |
1 |
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_______% loss of eficiency occurs at 2mm of wear. The tip should be discarded at this point. |
50 |
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_______ Lavage is when water stream within the perio pocket |
Fluid |
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___________ microstreaming is the swirling effect produced within the pocket by stream of fluid flowing over vibrating tip. |
Acoustic |
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Cavitation is the formation of tiny _________ in the water stream. |
bubbles |
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Contraindications: |
unstable pulmonary disease and dysphagia |
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Individuals with ___________________ disease that can be disseminated by aerosols. |
communicable |
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Examples of communicable diseases are: |
TB, hep, respiratory infections |
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Individuals with high ____________________ to infection that can be transmitted by contaminated dental unit, water, or aerosols. |
susceptibility |
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Examples of individuals with high susceptibility are: |
uncontrolled diabetes, organ transplants, chronic medical problems, and immunosuppressed individuals |
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Individuals with _______________ disease or difficulty breathing can have a high infection risk. |
respiratory |
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Individuals with a pacemaker should ___________ be exposed to magnetostrictive ultrasonic devices. |
NOT |
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The most powerful part of the tip of an ultrasonic is the _______. |
Point |
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The second greatest amount of energy on the tip of an ultrasonic is the _________ |
face |
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The least amount of energy on an ultrasonic tip is the ______ |
back |
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The __________surfaces of the ultrasonic tip is the least amount of energy dispersion and can be adapted directly onto the tooth surface. |
lateral |
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On a HAND instrument it is the ___________ edge that removes the calculus. |
cutting |
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On a POWERED instrument tip it is the ____________ of the active tip area that removes calculus. |
vibrations |
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The active tip area ranges from about ____ to ____mm of length |
2-4mm |
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The power to remove calculus is concentrated on the last ____to____mm of the tip. |
2-4mm |
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The efficiency of a powered instrument is determined by what 4 things: |
1) vibrations 2) stroke length 3) stroke motion 4) surface of tip in contact with tooth |
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Powered devices use an electric current to _________ rapid vibrations of the instrument tip. |
produce |
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___________refers to how many times the instrument tip vibrates per second. |
frequency |
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The lower the frequency, the fewer _____________ per second |
vibrations |
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The higher the frequency, the _________ vibrations per second. |
MORE |
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The __________ refers to how far the instrument tip moves during one cycle. |
STROKE |
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Another term for STROKE is ____________ |
Amplitude (POWER) |
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_______ power delivers a shorter LESS forceful stroke. |
LOWER |
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_________power delivers a longer MORE forceful stroke. |
Higher |
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What is the ideal frequency and amplitude for plaque removal? |
Low frequency and low amplitude |
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What is the ideal frequency and amplitude for tenacious calculus removal? |
High frequency and high amplitude |
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The two types of water delivery on a powered instrument are: |
1) external flow tube: (separate tube caries the water to tip, exits near lower shank of tip) 2) Internal flow tube: (water flows through tip exiting at point) |