Cosmetic Dentistry
In-Office Teeth Whitening in Gladstone
Professional whitening in the dental chair.
In-office whitening is carried out by your dental team with a stronger gel than you would use at home. Here, that treatment is Zoom Whitening.

Exceptional Dentistry in Gladstone, MO
What happens during in-office whitening?
In-office whitening lets your dental team control every step, from protecting your gums to timing the gel. After a check that your teeth and gums are healthy, a barrier is placed along the gum line and your lips and cheeks are held away from your teeth. A professional whitening gel is then applied to the front surfaces and activated with the Zoom Whitening light. The team keeps an eye on your comfort throughout and removes the gel once the treatment is complete. Because everything happens in the office, it suits people who would rather not wear whitening trays at home.
At a glance
Why people choose the chair
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Supervised treatment
Your dental team applies and removes the gel, so you do not have to manage it yourself.
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Protected gums
A barrier shields the gums and soft tissue while the gel is on your teeth.
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A single visit
The treatment takes place during one appointment instead of a series of sessions at home.
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Ahead of an occasion
Many people schedule whitening before a wedding, family photos or a new job.
Your appointment, step by step
- A shade check and a look at your teeth and gums
- Protective barriers for your gums, lips and cheeks
- Application of the whitening gel
- Activation with the Zoom Whitening light
- Removal of the gel, a rinse and a final shade comparison
Good to know
Before you book
Whitening gel works on natural enamel, not on fillings, crowns or porcelain veneers. If your front teeth have restorations, your dentist will explain how whitening may affect the match. It also helps to have a cleaning first so the gel reaches clean enamel.
Cosmetic consultation
Free
Explore your options for a brighter, more confident smile
Our complimentary cosmetic consultation includes:
- Professional smile assessment
- Discussion of your goals & concerns
- Personalized treatment recommendations
- Information on teeth whitening, veneers, dental bonding & more
Keeping your smile bright
Coffee, tea, red wine and tobacco can stain teeth again over time. Rinsing after dark drinks and keeping up regular cleanings both help, and your dentist may suggest take-home whitening trays for touch-ups.
Book your visit
Book in-office whitening
Start with a cosmetic consultation. We will check your teeth, talk about your goals and let you know whether in-office whitening is a good fit. The main teeth whitening page compares every option.

The short answer
In-office teeth whitening is a professional treatment carried out in the dental chair, where your dental team applies a stronger whitening gel than you would use at home. After a check that your teeth and gums are healthy, a barrier protects the gums, the gel is applied to the front surfaces and activated with the Zoom Whitening light, and the team removes it once treatment is complete. It takes place in a single visit, which suits people who would rather not wear whitening trays at home or want brighter teeth before an occasion.
In-Office Whitening FAQ
- What is Zoom Whitening?
- Zoom Whitening is a professional in-office whitening system that uses a whitening gel and a special light. Your dental team applies the gel, activates it with the light and monitors you throughout. Because the team controls every step, you do not have to manage the gel yourself. It is the in-office whitening treatment used at this office.
- How are my gums protected?
- Your gums and soft tissues are covered with a protective barrier before the gel is applied. Your lips and cheeks are also held away from your teeth so the gel stays on the front surfaces of the teeth. The team monitors you throughout the treatment. The gel is removed and your mouth is rinsed once treatment is complete.
- Will my teeth feel sensitive afterward?
- Some people notice temporary sensitivity after whitening. Whitening gel works through the enamel, and some teeth react to that for a short time. Let your dentist know if you feel it, as there are ways to ease it. Mentioning any sensitivity you already have before treatment also helps your team plan.
- Can I whiten if I have veneers or crowns?
- Whitening only changes natural enamel, so veneers, crowns and fillings keep their current color. If your front teeth have restorations, whitening the natural teeth around them can change how well they match. Your dentist can explain how whitening would affect the color match with your existing restorations. That conversation is worth having before treatment.
- What should I avoid after whitening?
- Your dentist may suggest limiting dark drinks, such as coffee and red wine, and tobacco in the period right after treatment. These can stain teeth again over time. Rinsing after dark drinks and keeping up regular cleanings both help keep your smile bright. Take-home trays may also be suggested for touch-ups later on.
Your dentist
Meet Dr. Emily Marx
A skilled family dentist, Dr. Marx is passionate about helping patients feel comfortable while achieving their best smile. Meet Dr. Marx

