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126 > Fluoride II > Flashcards

Fluoride II Flashcards

1
Q

2 most common causes of death in acute fl poisoning

A

cardiac failure

respiratory paralysis

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2
Q

daily use of fl gel in custom trays indicated for

A

pts w/:
full mouth rehabilitation
undergoing head and neck radiation therapy

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3
Q

acidulated phosphate fl is contraindicated for

A

porcelain crowns

composite veneers

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4
Q

approved fl compounds found in otc dentifrices include

A

sodium fluoride
stannous fluoride
sodium monofluorophosphate

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5
Q

arguments against fluoridating public water supplies used by antifluoridationists

A

fl increases risk of birth defects
fl increases risk of cancer
addition of fl to public drinking water is unconstitutional

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6
Q

side effect of topical application of stannous fl solution

A

brown staining

gingival reaction

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7
Q

3yo lives in nonfluoridated area has rampant decay. what home-care regimen

A

fl tablets
fl dentifrice
brush on fl gel

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8
Q

fluorides thought to protect teeth from caries by which mechanism

A 
antibacterial action
inhibition of glycolysis
reduction of plaque adhesion
reduction in enamel solubility
enhancement of remineralization
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9
Q

fluoride toxicity manifests in bones as

A

osteosclerosis

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10
Q

injestion of fluoridated water form birth shown to reduce tooth decay in children by what percentage

A

60%

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11
Q

fluorosis may result if excessive fl is consumed during which stage of tooth development

A

calcification

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12
Q

characteristic of fl regime that enhances remineralization

A

low concentration used daily

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13
Q

at age 11, individual who has lived in nonfluoridated community since birth moves to area w/ water at 10ppm. at 35 he is likely to exhibit

A

increased fl stored in bones

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14
Q

in communities w/o fluoridated water supply, most cost effective method for delivering systemic fl to 6-12 yo

A

school water fluoridation

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15
Q

after ingestion of fluorapatite in enamel, this increases resistance of enamel b/c fluorapatite is

A

a dense molecule resists penetration by acids

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16
Q

amount of untreated dental caries in population at a given time

A

prevalence

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17
Q

fl toxicity in bones

A

osteosclerosis

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18
Q

14 yo: what supplement w/ no water fluoridation

A

1.00 mg

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19
Q

topical fl uptake

A

fl diffuses into enamel of erupted tooth

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20
Q

CLD of Fl

adult and child

A

adult 5-10g NaF

child 0.5-1.0g NaF

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21
Q

STD is ____ CLD

A

1/4

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22
Q

tx of acute fl poisoning

A

induce vomiting

23
Q

unless there is some clinical reason for polishing, the pumice prophylaxis may be omitted prior to fl tx b/c

A

prophylaxis removes the fluoride rich outer layer of enamel

24
Q

fl thought to protect teeth from caries by which mechanism

A 
antibacterial action
inhibition of glycolysis
reduction in plaque adhesion
reduction in enamel solubility
enhancement of remineralization
25
Q

what reduces root hypersensitivity

A

topical fl

26
Q

type and concentration of fl recommended to h&n cancer pt for home care custom tray use

A

1% neutral sodium fl

27
Q

symptoms of acute fl toxicity

A

cramps
vomiting
diarrhea

28
Q

methods of fl therapy may effect morphology of dentition

A

water fluoridation
diet supplementation program
(systemic fl)

29
Q

dosage of a fl tablet supplement should be prescribed to preschooler who consumes optimum fl drinking water

A

none

30
Q

when ingested 90-95% absorbed

A

stomach & small intestine

31
Q

most inorganic matter of teeth occurs as

A

hydroxyapatite

32
Q

most table reaction product of a topical application of fl

A

fluorapatite

33
Q

pH range of acidulated fl gels

A

3.5

34
Q

symptoms of chronic fl toxicity

A 
dental fluorosis
bone fluorosis (form of osteosclerosis)
35
Q

areas have greatest uptake of topical fl

A

anterior teeth/areas of demineralization

36
Q

optimum concentration of fl in drinking water is

A

warmer: 0.7ppm
cooler: 1.2ppm

37
Q

how does fl ion affect crystal size solubility of the hydroxyapatite crystal

A

fl increases size of reminerlized crystals resulting in decreased enamel solubility
enamel crystal size increases; solubility decreases

38
Q

fluoridation of water supply often accomplished by adding appropriate amounts of what type of fl

A

sodium silicofluoride

39
Q

2 main substances removed from enamel in demineralization of enamel are

A

calcium and phosphorus

40
Q

fl mouthrinses contraindicated for children under

A

6yo

41
Q

8% stannous fl contains

A

19,360 ppm

42
Q

mouthrinse programs used daily should use ___ NaF

A

.05%

43
Q

7 issues must be considered for professional fluoride therapy

A
  1. Fluoride level in the primary water supply
  2. Overall exposure to fluoride
  3. Presence of newly erupted teeth or mixed dentition
  4. Caries assessment
  5. Client’s ability to tolerate a 4 min topical application
  6. Age of client (over 6 years)
  7. Physical or cognitive abilities
44
Q

What to do in case of Fl toxicity

A

Lime water or Fl binding liquid like milk

45
Q

should cases of fl toxicity be documented

A

yes

46
Q

1st permanent teeth to erupt

A

6yr molars

47
Q

1st sign of toxicity

A

nausea

48
Q

cause of 1st sign of fl toxicity

A
  1. Fl Rx with HCl acids of stomach
  2. Creates HFl (hydrogen fluoride)
  3. Irritates stomach
49
Q

Shape of smooth surface caries

A

Pyramidal
Surface is wide
Pointed toward DEJ

50
Q

3 examples of Fl binding liquid

A

Lime water
Milk
Antacids containing magnesium hydroxide and aluminum hydroxide

51
Q

Chemical formula for magnesium hydroxide

A

Mg(OH)2

52
Q

What type of effect does Fl have on root caries

A

topically post eruption effect

53
Q

home fl therapies incld

A

custom trays

54
Q

widely used fl vehicle

A

toothpaste

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