False
T/F Stains are etiologic factors
pre-med
Bacteremia can be created by a cleaning so what is needed in advance sometimes ___?
esthetic NOT health
What is the purpose of stain removal?
True
T/F Polishing for 30 seconds with pumice paste can remove enamel over time
1. demineralized areas become softer
2. enamel, dentin & cementum can become thinner
What are the effects of stain removal on teeth?
a wet surface
What reduces heat best when removing stains?
1. high speed can cause trauma,
2. epithelium and free gingiva can be damaged when a rubber prophy cup is used with pumice,
3. particles can irritate, and
4. healing can be delayed
Effects on gingiva when removing stain include ___?
1. to prepare teeth for caries prevention (sealants),
2. to contribute to patient motivation,
3. to remove extrinsic stains not otherwise removed by toothbrush or scaling methods
What 3 reasons do we remove stain?
1. low abrasiveness,
2. light pressure,
3. minimal heat production,
4. low speed handpiece
The best stain removal technique includes what 4 things?
Shape, hardness, body strength, attrition resistance, particle size (grit)
What factors affect abrasive action with polishing agents?
if there is no stain dont polish, respiratory problems, tooth sensitivity, restorations, newly erupted teeth, if patient has characteristics that place them at risk for dental caries
Contraindications for polishing include?
1. Quantity applied,
2. speed and pressure = less is better!
3. Best to use light speed with intermittent touch
Principles for application of abrasives:
Abrasive agents
Silex, pumice, calcium carbonate, tin oxide, emery, touge, diamond particles: all are examples of ___?
1. Flouride,
2. Amorphous calcium phosphate,
3. tooth whitening,
4. dentin hypersensitivity
Name four types of prophy pastes
Instruction and clinical procedures, explain the procedure, provide protection for patient, preprocedural rinse, patient position, patient breathing
What is the procedure for coronal polishing?
protective barriers, flushing water lines, pre-pro rinse, high volume suction
What procedures lessen the extent of contaminated aerosols?
Porte polisher
This is used to extrinsic stain removal or for application of agents in hypersensitive areas. It is constructed to hold wood point at a contra-angle
6000-10,000 rpm
RPM for a low speed handpiece?
100,000-800,000 rpm
RPM for a high speed handpiece?
Tactile sensitivity is diminished, loss of tooth structure or gingival trama can occur if done improperly, may need to pre-medicate
Some side effects to handpeice stain removal are?
Modified pen grasp, finger rest, lowest speed, apply correct pressure to reostat, stroke and procedure, use bristle brush with occlusal surfaces, and use water as needed
Procedure for stain removal
Dental tape and floss, and finishing strips
What do you use when polishing proximal surfaces?
Vaseline to the patient's lips!
When using the air powder (prophy jet) always apply ___?
Less time, no heat, removes tenacious heavy stain, good for ortho patients.
Advantages of air powder polishing are __?
keep a 60 degree angle for the facial and lingual anteriors and an 80 degree angle for the F and L posteriors, and a 90 degree angle on the occlusal surfaces
In order reduce aerosols when using the prophy jet you must ___?
Pre-procedural mouthrinse, HVE and appropriate clinical attire
How do you prep the patient prior to using the prophy jet?
Sodium restricted diet, respiratory disease, renal failure, and patient's with a communicable disease
Which patients are at a greater risk for complications when using the prophy jet?
F and L anteriors
A 60 degree angle is used for the prophy jet when?
F and L posteriors
An 80 degree angle is used for the prophy jet when?
Occlusal surfaces
A 90 degree angle is used for the prophy jet when?