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Dental Hygiene > exam 4 > Flashcards

exam 4 Flashcards

1
Q

implementation?

A

provide motivating demonstration and supervision for daily self care…intro tobacco cessation where indicated, spread instructions over several appts…
remember, learning takes time and reinforcement,,

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2
Q

what are endogenous stains?

A

develop or originate from within the tooth. always intrinsic and usually are discolorations of the dentin reflected through the enamel. (such as amelogensis imperfecta)

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3
Q

what are the temporary causes of dry mouth?

A

occurs in diseases accompanied by high fever with dehydration or fluid loss, with control of certain diseases such as diabetes or hyperthyroidism, salivary flow returns to normal..

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4
Q

Why are power brushes more effective than manual?

A

they move in speed an motions that manual bruhses cannot. very helpful for those who cannot remove biofilm well on their own.

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5
Q

when something is stained entirely within?

A

intrinsic

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6
Q

what are volatile sulphur compounds?

A

VSC’s are produced consisting of hydrogen sulfide, methyl mercaptan, and lesser amounts of dimethyl sulfide and disulfide.. much higher in pts. with perio disease

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7
Q

rapidly progressive caries occuring in many teeth simultaneously also called acute caries in contrast to chronic caries (slow developing)

A

rampant caries

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8
Q

what is… when an intrinsic stain come from an outside source, not from within the tooth?

A

exogenous intrinsic

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9
Q

what does produced within or caused by factors within mean?

A

endogenous

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10
Q

when you recommend mouth wash to a pt. with xerostomia, what should you not recommend?

A

anything with alcohol

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11
Q

early stage of the caries process when demineralization causes a change in the enamel to appear chalky white.

A

white spot lesion

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12
Q

what are the systemic factors that cause halitosis?

A

renal or hepatic failure, carcinomas, diabetes, upper resp. infections, blocked nasal passages, sinus drainage, cirrhosis of liver.

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13
Q

what does green stain result from?

A

oral uncleanliness, chromogenic bacteria, and gingival hemorrhage

may occur at any age, primarily found in childhood and collects on both primary and permanent teeth

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14
Q

What was the percentage of the reduction of caries in the U.S since the public water supply was fluoridated in 1945?

A

40-60 percent

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15
Q

what is the most effective means of biofilm removal for facial and lingual surfaces, and proximal surfaces?

A

toothbrush and flossing

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16
Q

plan short and long term maintenance?

A

determine appropriate maintenance intervals (3-4-6 months)

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17
Q

what are the four acids produced by the metabolic breakdown process?

A

acetic, lactic, formic, and propionic..

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18
Q

what are the four types of fermentable carbohydrate?

A

sucrose, glucose, fructose and cooked starch

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19
Q

what is halitosis?

A

an unpleasant odor of exhaled air, a symptom of importance in the complete consideration of health promotion and disease prevention..

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20
Q

failure to carry out a prescribed healthcare plan, for example, failure to take medication as prescribed?

A

noncomplaince

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21
Q

procedure to assess risk for future dental caries development and identify approaches to managing caries risk..

A

CAMBRA (Caries Assessment and Management by Risk Assessment)

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22
Q

after remineralization, the caries process is halted, the area usually becomes discolored with a brownish tinge, darker with age or in tobacco user..

A

arrested caries

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23
Q

what bacteria are namely responsible for caries formation?

A

mutans streptococci, lactobacillus..

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24
Q

what is xerostomia?

A

dryness of the mouth caused by the diminishing of saliva.. it is a symptom, not a disease.

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25
Q

what are the major causes of permanent xerostomia?

A

radiation to head and neck for cancer therapy where permanent damage to the salivary glands can result, surgical removal of glands..

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26
Q

Describe the bass method of tooth brushing

A

direct filaments epically (up for maxillary and down for mand)

turn the brush head toward the gingival margin to make a 45 degree angle to the long axis of the tooth

direct the bristles into the gingival sulcus

press lightly and do not bend the bristles with excess pressure

vibrate the brush back and forth with very short strokes

apply brush to next two or three teeth and repeat

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27
Q

mechanism of action when enhances remineralization?

A

as the saliva flows over the biofil, its buffering properties neutralize the acid produced by the bacteria.. the pH rises toward neutral and prevents further dissolution of the minerals.. minerals in the saliva can go back into the tooth for remineralization..

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28
Q

what other ingredient does air powder polisher include besides air and water?

A

sodium bicarbonate or aluminum trihydroxide

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29
Q

what are the three steps in the fluoride mechanisms of action?

A

inhibits demineralization
enhances remineralization
inhibits bacteria in the biofilm

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30
Q

why do we avoid polishing teeth on the same day as quadrant deep scaling and root planing?

A

particles can become embedded out of reach of the most careful irrigation and rinsing because the disease lining of the pocket has usually been removed and the pocket wall is wide open.

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31
Q

with reference to abrasive agents, this is the particle size

A

grit

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32
Q

best way or instrument to detect coronal caries on a remineralizing tooth surface?

A

probe or explorer, unless you can visually see it

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33
Q

contraindications for air powder polishing?

A

phys. directed sodium restricted diet
resp. disease
pt. with end stage renal disease

avoid polishing cementum and dentin and free gingival tissue

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34
Q

chromogenic bacteria and fungi
decomposed hemoglobin
inorganic elements include calcium, potassium, sodium, silicon, magnesium, phosphorus, and other elements in small amounts

A

composition of green stain

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35
Q

common in people among eastern countries and has caries inhibiting effect. dark discoloration of the teeth, mahagony brown and almost black.. can become thick and hard, with partly smooth and rough surfaces. microscopically, the black deposit consists of microorganisms and mineralized material with a laminated pattern characterisitc of subgingival calculus and can be removed by scaling

A

betel leaf

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36
Q

what is the objective of a dental hygienist?

A

to provide the pt. with care and education so that dental health will be maintained indefinitely.

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37
Q

what are the functions of saliva?

A

buffers the acids and to supply minerals to replace those calcium and phosphate ions dissolved from the tooth during demineralization..

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38
Q

what does producing color or pigment mean?

A

chromogenic

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39
Q

the two ways stains are classified by source?

A

exogenous and endogenous

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40
Q

air powdered device using air and water pressure o deliver a controlled stream of specifically processed sodium bicarbonate slurry through the handpiece nozzle.. also called air abrasive, airpolishing, air powdered abrasive, or airbrasive

A

air powder polisher

41
Q

infectious disease caused by acidogenic bacteria with dissolution of enamel and dentin (coronal caries) and cementum and dentin(root caries)

A

dental caries

42
Q

where does pumice come from?

A

volcanic origin and consists chiefly of complex silicates of aluminum, potassium and sodium

43
Q

perform clinical preventive services?

A

complete scaling and bacterial debridement and apply fluoride and sealant

44
Q

name the four sources brown stain can result from

A

stannous fluoride
foodstuffs
antibiofilm agents
betel leaf

45
Q

what stains can occur on the external surface of the tooth and may be removed by procedures of tooth brushing, scaling, and or polishing?

A

extrinsic stains

46
Q

a term used to describe a power toothbrush that operates in audible range of human hearing

A

sonic

47
Q

bacteria in dental biofilm capable of metabolizing fermentable carbohydrates into acids..

A

acidogenic bacteria

48
Q

what additives are put into prophy pastes and their purpose?

A

to provide specific function such as enhancing the mineral surface of enamel, diminishing dentin hypersensitivity or tooth whitening

49
Q

what are the properties of an acceptable disclosing agent?

A 
intensity of color
duration of intensity
taste
non-irritating to mucous membranes
diffusability
astringent and antiseptic properties
50
Q

a brush driven by electricity or battery also called power assisted, automatic, electric or mechanical (in contrast with manual tooth brush)

A

power toothbrush

51
Q

what type of stain when the pellicle can take on stains of various colors that result from chemical alteration?

A

brown stain, brown pellicle

52
Q

composition of tobacco stain

A

tar and products of combustion

brown pigment from smokeless tobacco

53
Q

Cavitation

A

process in formation of cavities, final stage in the caries process..

54
Q

dental fluorosis

A

originally called brown stain, later by dr. frederick s mckay who studied the condition described it as mottled enamel.

55
Q

when something is derived from or situated on the outside(external?)

A

extrinsic

56
Q

What is the primary concern with dental stain?

A

appearance or cosmetic effect

57
Q

three general ways discolorations of the teeth and restorations can occur

A

stain adhering directly to the surfaces (removed by scaling)

stain contained within calculus and soft deposits(removed by scaling)

stain incorporated within the tooth structure and restorative material(cannot be removed by scaling)

58
Q

this type of tooth brushing technique is an unlimited sweep of horizontal scrubbing motions that bears pressure on teeth most facially inclined or prominent..

with the use of abrasive dentrifice, it may produce tooth abrasion

biofilm can remain undistrubed on interndetal areas.

A

horizontal brushing

59
Q

what is the wearing away of the tooth surface material by friction?

A

abrasion

60
Q

healing process in which minerals are redeposited in the demineralized tooth structure, accomplished by the protective factors of the saliva and the action of fluoride to inhibit demineralzation and intefere with the enzymatic requirements of bactiera..

A

remineralization

61
Q

what color is the stain from betel leaf and what does it inhibit in the oral cavity?

A

dark mahogany brown, sometimes black.. caries inhibiting effect.

62
Q

what are the contraindications for polishing?

A 
pts. with respiratory problems
tooth sensitivity
restorations
newly unerupted teeth
conditions that require postponement for later evaluation
63
Q

what instrument should be used to check the surface of a white areas of remineralization?

A

blunt probe

64
Q

how is tobacco stain distributed on the tooth surface?

A

cervical third

any surface as well as pits and fissures, most likely on lingual surfaces.

65
Q

individual synthetic fiber.. a single element of a tuft fixed into a tooth brush head,

A

filament

66
Q

what is pilocarpine therapy?

A

prescription medicine that increases salivary output..

67
Q

chlorhexidine and alexidine are used in mouth rinses and are effective against biofilm formation. a brownish stain of the tooth surfaces results usally more pronounced on proximal and other surfaces less accessible to routine biofilm control procedures. the stain also tends to form more rapidly on exposed roots than on enamel. tooth staining has been considered a significant side effect (#1 side effect from brown stain)

A

antibiofilm agent

68
Q

what are the six steps in a preventive program?

A 
assess patient needs
plan for intervention
implementation
perform clinical preventive services
evaluate progressive changes
plan short and long term matience
69
Q

medical and dental history

A

developmental complications, medications, use of tobacco and fluoride histories all contribute necessary information. accurately prepared medical and dental histories can provide information to supplement clinical observations

70
Q

what is the mechanism of action when inhibiting demineralization?

A

when fluoride is present in the flui of the biofilm around the enamel crystals (or dentin of the root), it will pass thru the diffusion channels with the acid and increase the fluoride of the subsurface lesion to prevent the continued dissolution of the minerals..

71
Q

what is the most common type of extrinsic stain?

A

yellow stain, from not brushing teeth

72
Q

what is a disclosing agent?

A

a preparation in liquid, tablet, or lozenge form that contains a dye or other coloring agent.. in DH, this is used to identify biofilm deposits for instruction, evaluation and research..

73
Q

characteristics shape each of tooth brush filament.. a special manufacturing process removes all shark edges and provides a smooth, rounded end to prevent injury to gingiva or tooth structure during use

A

end rounded

74
Q

oral hygine methods for removal of dental biofilm from tooth surfaces using a tooth brush and selected devices for inter dental cleaning.. contrast with chemotherapeutic biofilm control in which an antimicrobial agent is used

A

mechanical biofilm control

75
Q

mechanism of action when inhibits bacteria in the biofilm?

A

fluoride can change to HF (hydrogen fluoride) when it is contacted by the acid produced by the bacteria from the carbohydrates in the pt.’s diet.. in the HF form it can then diffuse over the cell membrane of the acidogenic bacteria.. inside it dissociates again and the fluoride ions interfere with essential enzyme activity within the bacterial cell..

76
Q

light brown, sometimes yellowish stain that forms on the teeth in the pellicle after repeated use of stannous fluoride gel or other product. the brown stain resuluts from the formation of stannous sulfide or brown tin oxide from the reaction of the tin ion in the flouride compound

A

stannous flouride

77
Q

what is the name for something that contains red color dye?

A

erythrosyn

78
Q

what stains occur within the tooth substance and cannot be removed by scaling or polishing?

A

intrinsic

79
Q

a cluster of bristles or filaments secured togehter in one hole in the head of a tooth brush

A

tuft

80
Q

assess pt. needs?

A

review all histories and clinical findings including exams, radiographs, severity of disease, etc..

81
Q

tea, coffee and soy sauce are often implicated in the formation of a brownish stained pellicle. as with other brown pellicle stains, less stain occurs when the personal oral hygiene and biofilm are excellent (common in asains)

A

food stuffs

82
Q

what does originating outside or caused by factors outside?

A

exogenous

83
Q

what are chlorhexidine and alexadine?

A

used in mouth rinses and are effective against biofilm formation… antibiotic mouth wash

84
Q

do all pulpless teeth discolor?

A

no, because of improved endodontic procedures

85
Q

evaluate progressive changes?

A

uses indices and probing depths at each apt. to compare tissue quality, BOP, and pocket depths.. provide preventive counseling for corrective action when goals are not met.

86
Q

revolutions per minute

A

rpm

87
Q

this is the loss of a tooth structure produced by a mechanical cause such as a hard bristled tooth brush used with excessive pressure and an abrasive dentrifice, abrasion contrasts with erosion which involves a chemical process

A

abrasion (tooth)

88
Q

formula for caries?

A

acidogenic bacteria+fermentable carbs=acid formation>demineralization and or cavity..

89
Q

what are exogenous stains?

A

develop or originate from sources outside of the tooth.. may be extrinsic and stay on the outer surface of the tooth or intrinsic and become incorporated within the tooth structure

90
Q

what type of stain has an unknown cause and found in very healthy mouths?

A

black line stain- forms along the gingival third near the gingival margin

more common in young women

91
Q

major stage in dental caries process in which minerals, primarly calcium and phosphorus, are removed from tooth structure by acids formed by acidogenic bacteria, primarly mutans streptococci and lactobacilli

A

demineralization

92
Q

what are habits, behaviors, lifestyles or conditions that, when present increase the probability of a disease occurring?

A

risk factors

93
Q

what are the two locations stains are categorized by?

A

extrinsic and intrinsic

94
Q

what is xylitol?

A

sugar free gum that can be chewed at the end of meals to prevent cavities

95
Q

plan for intervention?

A

apply pt. info (educational level, occupation, etc.); outline needed procedures and work out goals with pt.

96
Q

manner of formation of dental fluorosis

A

enamel hypomineralization results from ingestion of excessive flouride in drinking water (more than 2 parts per million) during the period of mineralization. the enamel alterations are a result of toxic damage to the ameloblasts

when the teeth erupt, they have white spots or areas that later become discolored from oral pigments and appear light or dark brown

severe effects of excess flouride during development may produce cracks or pitting, the discoloration goes righ into these areas. this condition and appearance led to the name mottled enamel

97
Q

when does learning occur?

A

when an individual changes behavior and when beneficial changes are incorporated into everyday living..

98
Q

this method is widely accepted for all patients for plaque removal adjacent to and directly beneath the gingival margin. the gingival margin and col are the most important in the control of gingival and perio infections

A

bass method (sulcular brushing)

99
Q

extent to which a person’s health behaviors coincide with dental/medical counseling?

A

compliance

Dental Hygiene (3 decks)

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