Teeth Whitening Flashcards
(49 cards)
Extrinsic-
Stains on the external surface of teeth
Extrinsic
▶ due to (4)
▶ Usually, can be removed with —
Poor oral hygiene, eating habits, chromogenic microorganisms, tobacco
prophylaxis
Intrinsic-
Deeper internal stains or enamel defects
Intrinsic-
▶ due to (4)
▶ More complex to treat and usually requires — to treat
Advancing age, metabolic drug staining, trauma, endodontic therapy
(tooth dehydration, effects of restorative materials)
dental professional
Tetracycline Staining
(3)
▶ Most commonly long-term use of minocycline
▶ Dark blue-gray stains more difficult to treat than mild
yellow-orange discolorations
▶ Can require up to 6 months of consistent use of vital
bleaching products
A — to ensure dental health must precede a bleaching
treatment
diagnosis
Treat caries in the non-esthetic zone prior to whitening and
address failed restorations and/or areas of caries in the esthetic
zone with —
temporary restorations
It’s possible to place esthetic restorations prior to whitening in
a lighter shade, but the patient need to be aware these may
need to be
replaced following whitening if the color match is
unacceptable
— in the esthetic zone will most likely need
to be replaced, and patient needs to be informed.
Existing restorations
Exposed root surfaces may experience —, and if large
areas are exposed, or if restorations are inadequate, patients
may develop
sensitivity
mild to moderately severe pain
Remove (2). If tissue is traumatized,
wait — before beginning bleaching treatment
to minimize possible gingival sensitivity.
calculus and extrinsic stains
one to two weeks
Whitening does not alter shade of restorations; wait — following the bleaching procedure before matching and
placing resin-bonded restorations. Color stabilization requires
time and — may interfere with bond
strengths. This is important before placing definitive tooth-
colored restorations
two weeks
residue peroxide ions
Teeth with large amalgam restorations may appear darker
than other bleached teeth because the —
becomes more visible through the bleached enamel. The
patient should be made aware that this may require a more
— following bleaching.
internal restoration
extensive esthetic restoration
▶ Enamel:
A semi-translucent, prismatic, primarily inorganic
▶ Dentin:
A yellow opaque, tubular, primarily organic
Tooth Whitening Mechanism
▶ Enamel:
▶ Dentin:
▶ Hydrogen peroxide migrates through the enamel and breaks
down organic pigment molecules in the enamel and dentin
(primarily dentin)
▶ Colgate Optic White:
▶ Colgate Optic White:
Electrochemical reaction to increase pH
making the conducting gel more effective, faster, and less
sensitive
Colgate in office whitening kit components (5)
tray
cheek retractors
charging stand and plug
brush on pen containing 10% whitening serum
brush pen with alcohol to remove layer
Colgate Optic White Professional In-office
Charge the light at least 4 hrs or overnight prior to treatment.
Pt must pay in advance in order to get the kit from the dispensary to charge prior to the
appointment. Dispensary personnel can charge it, or the student can charge it.
Take starting shade and confirm with patient.
Place cheek retractor and dry teeth with 2 x 2 gauze.
Click pen several times until you see a drop of serum, then paint a thin coat on each tooth. The
serum does not have to be perfectly even but avoid the gingival tissue. If some gets on the tissue,
wipe away with gauze, cotton roll or swab.
Allow serum to dry 10-15 secs; teeth will look shiny.
Remove cheek retractor and place LED device. It will beep once at 5 minutes then twice at 10
minutes and turn off.
Remove device, place cheek retractor and use Ethanol pen to remove dried serum. Apply to 2-3
teeth at a time, then remove serum with gauze, cotton roll or swab. (Gauze seems to work best)
Re-apply whitening serum and repeat this process 2 more times for a total of 3 cycles.
Take final shade and compare to starting shade.
Patient takes home kit, but not the whitening serum-it is too strong for home use. Refill pens are
available for purchase and used with the LED device.
Colgate Optic White At-home kit
6% Hydrogen Peroxide serum
Available for purchase; patient pays for the kit and student picks it up
at the dispensary.
Similar pen with whitening serum that is a lower concentration for
home use.
Patient dries teeth with tissue or gauze.
Paint serum on upper and lower teeth.
Insert LED device for 10 minutes.
Leave dry serum on teeth overnight.
Brush off dry serum in the morning.
Dentist Supervised Nightguard Vital Bleaching
▶ Active Ingredient is (2)
▶ Patients notice whitening effect after — days with a two-week regimen
▶ Rebound of — shade should be expected
▶ Bonding should be delayed for 2 weeks: residual peroxide ions could interfere with —
▶ For sensitivity, have patients use (2); either as
toothpaste or a gel within the whitening trays
10%-22% Carbamide Peroxide or 3%-6% Hydrogen Peroxide
4-5
½
bond
strength and shade needs to stabilize to final shade
Potassium Nitrate or Stannous Fluoride
Hydrogen Peroxide vs Carbamide Peroxide
Carbamide peroxide contains (2) with
the amount of hydrogen peroxide at a — ratio.
Therefore, –% carbamide peroxide contains –% hydrogen
peroxide whereas a –% carbamide peroxide would contain –%
hydrogen peroxide
hydrogen peroxide and urea
3:1
30
10
10
3.33
Patients are sometimes confused why something –% is the same
strength as something –%- be prepared to explain the
difference.
10
30
It is the — that is whitening the teeth
hydrogen peroxide
