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stains, depostis and polishing🦷 > polishing > Flashcards

polishing Flashcards

1
Q

what can occur to patients during stain removal

A

hypersensitivity

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2
Q

benefits if coronal polishing

A

prepares teeth for sealants
smooth surfaces
slows new deposits
stain removal

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3
Q

air-powder polishing

A

a special designed hand piece with a nozzle that produces a high pressure steam of hot water and sodium bicarbonate

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4
Q

rubber cup polishing

A

a rubber polishing cup slowly rotated with no water and the use of polishing paste

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5
Q

most common form of polishing

A

rubber cup polishing

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6
Q

polishing cups

A

soft webber polishing cups used to clean and polish the smooth surfaces of the teeth

attaches to the slow sped handpiece

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7
Q

prophylaxis angle (prophy angle)

A

angle with a rubber cup and a bristle brush

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8
Q

bristle brushes

A

used to do molars in the deep pits and fissures

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9
Q

dental abrasives (polishing material)

A

used to remove stain and to polish natural teeth, prosthetic appliances, restos and castings

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10
Q

5 kinds of dental abrasives available

A

extra coarse
coarse
medium
fine
extra fine

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11
Q

what is the goal when choosing dental abrasives

A

to use the agent that produce the least amount of abrasion to the tooth surface

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12
Q

5 characteristics of abrasive materials

A

shape
hardness
body strength
attrition resistance
particle size (grit)

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13
Q

3 factors that influence the rate of abrasion

A

more agent used the greater degree of abrasion

light pressure= less abrasion

slower the rotation cup less abrasion

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14
Q

what type of polishing paste should you use for esthetic restoration

A

diamond, aluminum oxide or low-abrasive tooth paste

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15
Q

how many polishing strokes should be done per tooth

A

3-5

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16
Q

shape of abrasives

A

irregular shaped particles with sharp edges will produce deep grooves

round particles will not abrade much

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17
Q

hardness of abrasives

A

particles must be harder than the tooth

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18
Q

what speed should be used while polishing

A

20,000 rpm

19
Q

abrasive body strength

A

particles that fracture into smaller sharp-edged particles

20
Q

attrition resistance for abrasives

A

effective abrasive particles do not dull or become embedded in the surface being abraded

21
Q

particle size (grit)

A

the larger the particle the more abrasive they are but have the least polishing ability

finer abrasives achieve a glossy finish

22
Q

what grasp is used for polishing

A

modified pen grasp

23
Q

fulcrum

A

an intra oral and extra oral finger rest used to provide stability to the operator

24
Q

when does a right handed operator usually begin when coronal polishing

A

8-9 o’clock

25
Q

when does a left handed operator usually begin when coronal polishing

A

3-4 o’clock

26
Q

why do you floss after coronal polishing

A

to polish interproximal tooth surfaces
to remove any abrasive agent or debris that may be lodged in the contact area

27
Q

how may teeth away should your fulcrum be

A

maximum 4 teeth away

28
Q

what three criteria show that polishing is complete and well done

A

-no remaining stain or disclosing agent

-teeth are glossy and reflect light from the mirror uniformly

-no evidence of trauma to gums or other soft tissues

29
Q

disclosing agents

A

used to identify plaque or other soft deposits

30
Q

Six properties of an acceptable disclosing agent

A
  • intensity of colour
  • duration of intensity
  • Taste
  • Must not be irritating to the mucous membrane
  • diffusibility
  • Must have antiseptic properties
31
Q

Three methods of application for disclosing agent

A

tablet
Solution
Rinse or mouthwash

32
Q

what should always be done before application of disclosing agent?

A

Evaluation of gingival tissues

33
Q

coronal polishing

A

A technique used to remove plaque and stains from the coronal surfaces of the teeth

34
Q

what surfaces can be polished?

A

lingual and buccal

35
Q

when should coronal polishing be done

A

after treatment for scaling, route planning, and other periodontal therapy the teeth are assessed for presence of stain

36
Q

effects on the teeth during coronal polishing

A

nearly three times surface enamel is lost from abrasive polishing

grooves or scratches created

the outer layer of enamel contains fluoride, this is stripped away

37
Q

do you polish a patients teeth with xerosromia, why

A

no because this patient cannot afford to lose any of their enamel

38
Q

heat production while polishing

A

the pressure and force can cause heat and irritation, use water to sooth teeth and slow motion

39
Q

3 reasons for stain removal

A
  • if the stain cannot be removed by scaling
  • not necessary to polish before fluoride
  • contribute to motivation of the patient
40
Q

contradictions of polishing

A

-risk for caries
-enamel problems
-patients with tooth sensitivity
-rampant caries

41
Q

contradictions that may need postponement of treatment

A

-When instruction for personal talk, removal has not yet been given
-Soft, spongy tissue that bleeds on brushing or gentle instrumentation
-Immediately following subgingival, scaling and root planning
-Communicable diseases, potentially disseminated by aerosol

42
Q

2 environmental factors of coronal polishing

A

aerosol production
spatter

43
Q

AGP

A

aerosol generating procedure

44
Q

selective polishing

A

A procedure in which only those teeth or surfaces with stain are polished to avoid unnecessary removal of even small amounts of the surface enamel

stains, depostis and polishing🦷 (2 decks)

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