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Ch 58 coronal polish

coronal polishing

Question	Answer
calcium and phosphate salts in saliva that become mineralized and adhere to tooth surfaces	calculus
that portion of the tooth that is visible in the oral cavity	clinical crown
a technique used to remove plaque and stains from the coronal surfaces of the teeth	coronal polishing
stains developed from within the structure of the tooth	ednogenous
stains developed from external sources	exogenous
stains that occur on the external surfaces of the teeth that may be removed by polishing	extrinsic
finger rest used when an instrument or handpiece is held for a specified time	fulcrum
stains that occur within the tooth sturcture that may be removed by polishing	intrinsic
the complete removal of calculus, debris, stain, and plaque from the teeth also commonly known as prophy or cleaning	oral prophylaxis
commercial premixed abrasive paste used for polishing teeth and restorations	prophy paste
a technique that is used to remove plaque and stains from the coronal surfaces of the teeth	rubber cup polishing
smooth tooth surface is ____ likely to retain plaque, calculus and stain	less
coronal polishing is done with	the use of a dental handpiece with a prophy angle, a rubber cup, and a polishing material
coronal polishing is strictly limited to	the clinical crowns of the teeth
who are the members of the dental team that are licensed to perform an oral prophylaxis	dentist and hygienist
contraindications for coronal polishing	when no stain is present, patients who are at high risk for dental caries, sensitive teeth, newly erupted teeth
indications for coronal polishing	before placement of dental sealants, before placement of dental dam, before cementation of orthodontic bands, before application of acid etching solution on enamel, before cementation of crowns and bridges
___ is a procedure in which only those teeth or surfaces with stain are polished	selective polishing
what is the purpose of selective polishing	to avoid unnecessary removal of even small amounts of surface enamel
does polishing teeth improve the uptake of professionally applied fluoride	no it does not
what does polishing reduce	the endotoxins and the bacteria on the cementum
stains are what kind of problem	primarily an esthetic problem
types of endogenous stains include those caused by:	an excessive amount of fluoride during formation of the tooth, would be that resulting from medications taken by the mother or the child during tooth development.
an endogenous stain regarding developmental stainig due to medication can be caused by :	tetracycline
exogenous stains are caused by what	environmental agents
examples of extrinsic stains are :	staining from food, drink, and tobacco, the source of the stain is external and may be removed
examples of intrinsic stains are:	tobacco stains from smoking, chewing or dipping and stains from dental amalgam
what is the appearance of black stain and what causes it,	thin black like on the teeth near the gingival margin.caused by natural tendencies
Black stain is more common :	in girls, found in clean mouths, difficult to remove
what is the appearance of tobaco stain	a very tenacious dark brown or black stain
what are the two methods of stain removal	air-powder polishing and rubber cup polishing
with any type of stain and plaque removal procedure you must be careful:	not to remove the surface enamel of the tooth, and to avoid trauma to the gingiva
when using air-powder polising what agents are used in the handpiece	warm water and sodium bicarbonate
Polshing brushes are not recommended for use on what	exposed cementum or dentin because these surfaces are soft and are easily grooved
what can you do to the bristle brush to soften bristles?	soak in warm water
when polishing what can you do to minimize frictional heat	move frequently from tooth to tooth, frequently replenish the supply of polishing agent
the grit of the agent refers to :	the degree of coarseness
polishing agents are available in what grits:	extra coarse, coarse, medium, fine and extra fine
what abrasive agent should you use for mildly abrasive stains such as tobacco	fine pumice
when is use of a fluoride paste contraindicated	before acid etching of the enamel when followed by bonding of sealants or other bonded materials.
what does the prophy angle attach to	low speed handpiece ( straight )
how are the handpiece and the prophy angle held	in a pen grasp with the handle resting in the U-shaped area of the hand between the thumb and the index finger
what is used to control the speed of the handpiece	the rheostat
what is used to activate the rheostat	the toe of the foot, the sole of the foot remains flat on the floor, similar to its position when operating a gas pedal on a car
why should you use intermittent pressure on the tooth when polishing	to allow the heat that is generated to dissipate between strokes
constant pressure of the rubber cup or the brush on the tooth can do what	builds up frictional heat that may cause discomfort and possible pulpal damage
when polishing where should you begin	begin with the distal surface of teh most posterior tooth in the quadrant, and work forward toward the anterior
when polishing the stroke should occur from:	the gingival third toward the incisal third of the tooth
if you are using two polishing agents with different degrees of coarseness you should always do what	use a separate polishing cup for each one. Use the most abrasive agent first, then, finish with the finest.
for access to the mandibular arch, position the patient's head _____ when the mouth is open, the lower jaw is _____	chin down, parallel to the floor
for access to the maxillary arch, position the patient's head	with the chin up
for maximum support and safety, keep the fulcrum___	as close to the area you are polishing as possible, preferably on the same dental arch
what does patrick and sponge bob say	when in doubt pinky out!
when polishing the lingual surfaces of maxillary anterior teeth what do you use to see this surface	a mirror using indirect vision
when polishing the most distal surface of the maxillary right or left quadrants what should you do to create more room to fit the prophy angle	ask your patient to close up a bit and move the lower jaw towards the side you are wanting to polish

Created by: cynthia.fryer

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