Chapter 42 : Extrinsic stain removal Flashcards
round, flat nonabrasive particles that do not scratch surface materials.
cleaning agent
The removal of stains is for esthetic, not for therapeutic or health, reasons.
t or f
true
the study and application of the principles of friction, lubrication, and wear as they apply to polishing.
tribiology
involves the abrasive particles attached to a medium, such as a rubber cup impregnated with abrasive particles that does not require a prophylaxis polishing paste.
two body abrasive polishing
s the type most commonly used by dental hygienists, in which loose abrasive particles (the abrasive particles in prophylaxis polishing paste) move in the interface space between the surface being polished and the polishing application device
three body abrasive polishing
can be created during the use of power-driven stain removal instruments. Rotation of the rubber cup can force microorganisms into the tissues.
bacteremia
an immunocompromised patient may require __________ coverage before dental treatment.
prophylactic antibiotic
types patients at risk for bacteremia during procedures
damaged or abnormal heart valves, prosthetic valves,
and other conditions
The biologic contaminants of aerosols stay suspended for long periods and provide a means for ________ to dental personnel, as well as to other patients.
disease transmission
Use of power-driven instruments is limited when a patient is known to have a communicable disease, a serious or chronic respiratory disease, or is immunocompromised.
t or f
TRUE
Polishing with coarse abrasive prophylaxis pastes may remove a few micrometer of the outer _____ .
enamel
is Polishing demineralized white spots of enamel contraindicated or indicated ?
contraindicated
More surface enamel is lost from abrasive polishing over demineralized white spots than over intact enamel
Demineralized areas of enamel can remineralize as these areas are exposed to fluoride from:
saliva
water
dentifrices
professional fluoride applications
an example of thin enamel resulting from imperfect tooth development
amelogenesis imperfecta
are areas of thin enamel contraindicated or indicated for polishing?
contraindicated
Use of COARSE abrasives may create deep, irregular scratches in ________ materials.
coarse
restorative
It is imperative that prophylaxis polishing agents are not used on _______ materials.
restorative
The rules for the use of cleaning or polishing agents include:
- Use light pressure, slow speed of the rubber cup.
- Use a moist agent.
- Cleaning or polishing agents are never to be used as DRY powders applied directly on teeth.