Should you clean teeth before whitening
An examination and cleaning can remove plaque or tartar before whitening, helping gel contact the teeth more evenly.
The short answer
Teeth should be examined and cleaned when plaque or tartar is present before whitening, because deposits can block the whitening gel and unevenly affect the result.

What is the direct answer?
What does this question mean?
A hygienist may use scaling instruments or an ultrasonic scaler to remove calculus, followed by polishing for selected surface deposits.
What can you do next?
Have the dentist check cavities, cracks, gum inflammation, and restorations before whitening. Follow the whitening plan after the mouth is healthy and deposits are removed.
When should you seek dental care?
Delay whitening and seek care for untreated decay, spontaneous tooth pain, ulcers, or active gum inflammation.
What should you ask the dentist?
Ask whether you need scaling, whether your restorations will match, and which whitening method suits your enamel.
Frequently asked questions
Can this be managed by changing technique?
Have the dentist check cavities, cracks, gum inflammation, and restorations before whitening. Follow the whitening plan after the mouth is healthy and deposits are removed.
What finding changes the treatment?
Delay whitening and seek care for untreated decay, spontaneous tooth pain, ulcers, or active gum inflammation.
