Dh 20 Final Review

Front 1

The Dental Hygienist's role is to have knowledge of _________________

Back 1

Recommended daily allowances (RDA)

Front 2

Dietary assessment includes:

Back 2

Frequency food intake, methods of food prep, cultural or religious dietary considerations, and exercise

Front 3

nutritional factors can alter _________ susceptibility to periodontal disease and modulate the process.

Back 3

Host

Front 4

Nutrients that contribute to healing and tissue repair:

Back 4

B complex, vitamin C, and dietary calcium

Front 5

Periodontal diseases are ______ caused by nutritional deficiencies.

Back 5

NOT (although mal-nutrition may contribute to the progression)

Front 6

skin and mucous membrane relevant vitamins:

Back 6

vitamin A, B complex and ascorbic acid (Vit C)

Front 7

Relevant minerals for skin and mucous membrane:

Back 7

zinc and iron

Front 8

Altered taste sensations:

Back 8

Deficient in: riboflavin, thiamin, zinc, vitamin A, vitamin B

Front 9

Glossitis:

Back 9

Deficient in: foliate, niacin, vitamin B12

Front 10

Angular Cheilitis:

Back 10

Deficient in: Foliate, iron, riboflavin, vitamin B12

Front 11

Delayed wound healing:

Back 11

deficient in: Riboflavin, zinc, vitamin A, Vitamin C

Front 12

Healthy snacks:

Back 12

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.

Front 13

Ultrasonic is a __________ approach utilizing both methods is preferred.

Back 13

BLENDED

Front 14

___________________ instrumentation uses rapid energy vibrations of powered instrument tip to fracture calculus, disrupt plaque, and flush perio pockets.

Back 14

POWERED

Front 15

The two major types of electronically powered devices are:

Back 15

sonic and ultrasonic

Front 16

The two ultrasonic types are:

Back 16

piezoelectric ultrasonic and magnetostrictive ultrasonic

Front 17

Electronically powered devices uses ____________ tips.

Back 17

water cooled

Front 18

The three modes of action are:

Back 18

mechanical removal, cavitation, and water irrigation.

Front 19

Mechanical removal in the modes of action is rapid ____________________ of tip to create microfractures in calculus.

Back 19

vibrations

Front 20

Cavitation in modes of action is when _________ flowing over tip disipiates heat produced.

Back 20

water

Front 21

______________ irrigation in modes of action washes toxic products and free floating bacteria from the pocket.

Back 21

water

Front 22

Magnetostrictive devices are available in two different kilohertz:

Back 22

25k or 30k

Front 23

Parkell GOLD (universal tip)

Back 23

-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

Front 24

Parkell SILVER (slim line tip)

Back 24

-light perio root debridement

-light stain

-de plaqueing of biofilm

-lavage/irrigate pocket

*silver=simple/slim

Front 25

___mm of tip results in approximately 25% loss in calculus removal ability.

Back 25

1

Front 26

_______% loss of eficiency occurs at 2mm of wear. The tip should be discarded at this point.

Back 26

50

Front 27

_______ Lavage is when water stream within the perio pocket

Back 27

Fluid

Front 28

___________ microstreaming is the swirling effect produced within the pocket by stream of fluid flowing over vibrating tip.

Back 28

Acoustic

Front 29

Cavitation is the formation of tiny _________ in the water stream.

Back 29

bubbles

Front 30

Contraindications:

Back 30

unstable pulmonary disease and dysphagia

Front 31

Individuals with ___________________ disease that can be disseminated by aerosols.

Back 31

communicable

Front 32

Examples of communicable diseases are:

Back 32

TB, hep, respiratory infections

Front 33

Individuals with high ____________________ to infection that can be transmitted by contaminated dental unit, water, or aerosols.

Back 33

susceptibility

Front 34

Examples of individuals with high susceptibility are:

Back 34

uncontrolled diabetes, organ transplants, chronic medical problems, and immunosuppressed individuals

Front 35

Individuals with _______________ disease or difficulty breathing can have a high infection risk.

Back 35

respiratory

Front 36

Individuals with a pacemaker should ___________ be exposed to magnetostrictive ultrasonic devices.

Back 36

NOT

Front 37

The most powerful part of the tip of an ultrasonic is the _______.

Back 37

Point

Front 38

The second greatest amount of energy on the tip of an ultrasonic is the _________

Back 38

face

Front 39

The least amount of energy on an ultrasonic tip is the ______

Back 39

back

Front 40

The __________surfaces of the ultrasonic tip is the least amount of energy dispersion and can be adapted directly onto the tooth surface.

Back 40

lateral

Front 41

On a HAND instrument it is the ___________ edge that removes the calculus.

Back 41

cutting

Front 42

On a POWERED instrument tip it is the ____________ of the active tip area that removes calculus.

Back 42

vibrations

Front 43

The active tip area ranges from about ____ to ____mm of length

Back 43

2-4mm

Front 44

The power to remove calculus is concentrated on the last ____to____mm of the tip.

Back 44

2-4mm

Front 45

The efficiency of a powered instrument is determined by what 4 things:

Back 45

1) vibrations

2) stroke length

3) stroke motion

4) surface of tip in contact with tooth

Front 46

Powered devices use an electric current to _________ rapid vibrations of the instrument tip.

Back 46

produce

Front 47

___________refers to how many times the instrument tip vibrates per second.

Back 47

frequency

Front 48

The lower the frequency, the fewer _____________ per second

Back 48

vibrations

Front 49

The higher the frequency, the _________ vibrations per second.

Back 49

MORE

Front 50

The __________ refers to how far the instrument tip moves during one cycle.

Back 50

STROKE

Front 51

Another term for STROKE is ____________

Back 51

Amplitude (POWER)

Front 52

_______ power delivers a shorter LESS forceful stroke.

Back 52

LOWER

Front 53

_________power delivers a longer MORE forceful stroke.

Back 53

Higher

Front 54

What is the ideal frequency and amplitude for plaque removal?

Back 54

Low frequency and low amplitude

Front 55

What is the ideal frequency and amplitude for tenacious calculus removal?

Back 55

High frequency and high amplitude

Front 56

The two types of water delivery on a powered instrument are:

Back 56

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)