How Long Does a Professional Teeth Whitening Last?
August 2025
Whether you've just had your teeth professionally whitened or you're planning to book that first appointment, one question is probably on your mind - how long does a professional teeth whitening last? That bright, confident smile is something everyone wants to hold onto.
In this blog, we’ll walk you through how long the effects really last , what can cause them to fade faster, and what you can do to keep your smile looking as white as new for as long as possible.
How long does professional teeth whitening take?
The typical session takes about one hour, during which a professional-strength whitening gel is carefully applied to your teeth repeatedly. The result? Patients walk out with smiles that are noticeably brighter, often several shades brighter. Thanks to the advanced techniques and high-quality products used. It’s a trusted way to transform your look quickly, safely, and comfortably, all done within your lunch hour.
Factors That Influence How Long Your Whitening Lasts
There isn’t a one-size-fits-all answer because everyone’s smile is different. A few key factors play a big role:
1. Type of stains - Stained teeth from food and drinks are treated better than stains caused by medication.
2. Oral care habits - Brushing and flossing daily keeps stains away.
3. Lifestyle choices - Smoking or sipping dark colored drinks daily can wear off the whitening gel sooner
4. Follow-up care - Using at-home trays provided by your dental office adds months to your results.
Together, these choices determine how long you enjoy your post-treatment sparkle.
How long does LED teeth whitening last?
Fort Dental Center uses advanced in-office LED whitening technology combined with a professional-strength whitening gel. Typically, patients enjoy bright, noticeably whiter smiles that last anywhere from 6 to 12 months, depending on their habits and care.
Let us help you enjoy a brighter, more confident smile that lasts because you truly deserve to shine every day, wherever life takes you.