How long does laser whitening last

Professional whitening lightens natural teeth for a variable period, because new stains and the tooth’s underlying color can return.

This question concerns the anatomy and clinical process behind the dental problem, including the tooth surface, dentine, pulp, gums, plaque, calculus, or appliance involved.

Use gentle daily oral hygiene and arrange an examination so the cause can be identified and the appropriate clinical step selected.

Seek prompt care for severe pain, facial swelling, fever, pus, uncontrolled bleeding, or difficulty swallowing or breathing.

Ask what structure is affected, what examination is needed, which treatment is appropriate, and what symptoms should prompt urgent review.