Transform your smile and enhance your appearance with teeth whitening
As time passes, teeth may undergo discoloration or staining due to the consumption of particular foods and beverages, tobacco usage, or natural aging. To enhance the appearance of your smile and increase your self-assurance, lightening the shade of your teeth can be a speedy and efficient option. Our office provides Zoom!® teeth whitening in Louisville, which can brighten your teeth up to eight shades in a single in-office session. Zoom! teeth whitening delivers professional-grade bleaching that produces noticeable results instantly.

While numerous over-the-counter teeth whitening products claim to brighten teeth, Zoom! teeth whitening provides unique benefits, including:
In addition, teeth whitening can complement other cosmetic or restorative dental procedures, such as full mouth restorations or smile makeovers.

Prior to the actual Zoom teeth whitening session, it is recommended to undergo a regular teeth cleaning. The complete procedure takes less than an hour and begins with a brief preparation to cover the lips and gums, leaving the teeth exposed. The Zoom hydrogen peroxide whitening gel is then applied, which works together with the Zoom light to penetrate the teeth and break up stains and discoloration. While the gel remains in place for 15 minutes, the light is activated and you can relax during the process.
This process is repeated for three 15-minute sessions of light activation, totaling a 45-minute treatment time. However, individuals with a strong gag reflex or anxiety may find it challenging to undergo the entire procedure. Afterward, a sensitivity-reducing fluoride paste-gel is applied to the teeth.
To maintain the whitening effects of the treatment, a Zoom home-use touch-up kit with custom-fitted whitening trays will be provided. We will provide instructions on when and how to use the kit. It is also advised to avoid or consume in moderation certain foods and beverages, such as tea, coffee, red wine, cola, etc., to prevent staining. Tobacco products should also be avoided. Maintaining an appropriate oral hygiene regimen and seeing your dentist and hygienist regularly for scheduled teeth cleanings is crucial in preventing stains from reforming. Your dentist may also suggest using toothpaste containing whitening agents to maintain the results of the procedure.
Drugstore kits promise fast, easy, and extra strength whitening, but often underdeliver. At-home kits use a low concentration of bleaching agents over an extended period, making results slow and short-lived. Irritated gums and lack of professional supervision are also potential drawbacks. While cheaper, failed attempts may end up costing more than professional whitening.
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Professional teeth whitening provides immediate and long-lasting results that at-home kits can’t replicate. Over-the-counter kits use a weaker bleaching agent, resulting in weaker and short-lived results. Professional treatments use a stronger hydrogen peroxide solution, customized trays, and a specialized light — designed to deliver safer, more effective, and longer-lasting results than over-the-counter kits.
Our customized treatments provide fast, safe, and effective results. We offer in-office and take-home options with custom trays in a variety of strengths to tackle any type of stain. Professional teeth whitening provides dental professional supervision and proven results.
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To minimize discomfort during Zoom! teeth whitening, it’s recommended to use toothpaste specifically designed for sensitive teeth prior to treatment. These toothpastes contain active ingredients that fill microscopic holes on the tooth’s surface which can cause sensitivity. Although a protective barrier is applied to the gums at the start of treatment to prevent irritation of the soft tissue, it may not prevent tooth sensitivity. If you experience difficulty tolerating the treatment, our dentist can adjust the intensity of the gel or shorten the duration of the activating light exposure. Another option to minimize sensitivity is to split the full treatment into two sessions conducted on separate days.
Zoom in-office whitening delivers dramatic results in a single appointment:
See your teeth get up to 8 shades whiter in just one 45-minute in-office session — no waiting days or weeks for results.
Zoom uses a higher concentration whitening gel activated by a special LED light — far more effective than any over-the-counter product.
The entire procedure is performed and monitored by your dentist, ensuring your gums and teeth are protected throughout the process.
With proper care and occasional touch-ups, Zoom whitening results can last for years — far longer than drugstore whitening strips.
Your dentist can adjust the treatment intensity and provide desensitizing agents to minimize sensitivity during and after whitening.
A typical Zoom!® dental whitening treatment takes about an hour to complete.
Yes, Zoom!® dental whitening is safe when performed by a trained dental professional.
Zoom!® dental whitening can effectively lighten most types of teeth, but it may not work as well on teeth that have severe discoloration or staining.
No, Zoom!® dental whitening is a professional treatment that must be done in a dental office.
Yes. At our Louisville dental office we offer Zoom!® to patients in Louisville and the surrounding area. Contact our office today to schedule an appointment.
Zoom Whitening at William H. Smythe DMD is delivered by Dr. William H. Smythe IV — a third-generation Louisville dentist practicing at the same Dixie Highway location his father opened in 1973. Treatment decisions are based on what is right for the individual patient, not on a one-size-fits-all protocol.
Our office uses modern diagnostic tools — including digital X-rays for low radiation exposure and detailed visualization — and emphasizes thorough exam, conservative treatment planning, and clear communication with every patient about their options before treatment begins.
Medically reviewed by Dr. William H. Smythe IV, DMD · University of Louisville School of Dentistry, 1996 · Kentucky dental license #3628 · William H. Smythe DMD, 5141 Dixie Highway, Louisville, KY 40216 · same location since 1973.
Cost depends on the size of the case, the materials chosen, and your individual diagnosis. Most cases fall into the low-to-mid four figures per tooth or area treated. We give a written estimate before any work begins.
Insurance: we accept most insurance plans and file claims on your behalf, so you do not have to chase reimbursement. We verify benefits before treatment and explain what is covered.
Payment options: Mastercard, Visa, American Express, Discover, cash, and CareCredit financing — which lets patients spread treatment cost across monthly payments.
Most patients tell us the anticipation was worse than the procedure itself. Treatment is performed under local anesthesia — you will feel the brief pinch of the numbing injection, then nothing more than light pressure during the work itself. If anxiety is keeping you from treatment, talk to us at the consultation; we will pace the visit and explain every step in advance.
William H. Smythe DMD has cared for Louisville families from the same Dixie Highway location since 1973. The office is on Dixie Highway in South End Louisville, with easy access from the Watterson Expressway (I-264) and I-64 — making the drive in from Shively, Pleasure Ridge Park, Valley Station, Iroquois Park, Auburndale, Beechmont, Fairdale, the South End, and across Jefferson County straightforward.
Our practice is family-friendly and accessible — free on-site parking, a wheelchair ramp, and an elevator to our second-floor office at Suite 202. Office hours are Monday through Wednesday 9 AM to 4 PM, Thursday 9 AM to 2 PM, and Friday 8:30 AM to 12:30 PM. To schedule, request an appointment online or call (502) 448-2876.
Contact our office to discuss how this treatment can help you achieve your dental health goals.