Teeth Whitening Specialist

Personalee Dental

James J Lee, D.D.S.

General Dentistry & Cosmetic Dentist located in San Fernando Valley of Los Angeles, Woodland Hills, CA

Teeth whitening is one of the simplest treatments to dramatically enhance your smile. At Personalee Dental in Woodland Hills, California, James Lee, DDS, and the team use Zoom!® in-office whitening to remove up to eight shades of staining from your teeth in as little as one visit. Teeth whitening is a safe, effective treatment for dull, yellow teeth. To schedule a whitening visit with the team, call Personalee Dental or book an appointment online today.

Teeth Whitening Q & A

What is professional teeth whitening?

Professional teeth whitening is a cosmetic treatment that removes stains from your teeth. There are two types of tooth stains: extrinsic and intrinsic.

Extrinsic stains

Extrinsic stains are on the surface of your teeth. Regular brushing and flossing can help prevent and treat surface stains. Many over-the-counter (OTC) treatments, such as whitening toothpastes, strips, and mouth rinses, can also help reduce the appearance of extrinsic tooth stains.

Intrinsic stains

Intrinsic tooth stains penetrate the protective tooth enamel on the outside of your teeth. They reach the deeper layers of your teeth. Intrinsic tooth stains are nearly impossible to remove at home. OTC treatments can’t penetrate the deeper layers of your teeth.

Professional teeth whitening can reach the deeper layers of your teeth. The treatments use a combination of peroxide-based whitening solutions and laser or light technology to remove surface stains and deep intrinsic stains.

Why would I need professional teeth whitening?

As you age, it’s normal to see your once-white teeth darken or turn yellow. There are many reasons your teeth change color over time. That is particularly true if you regularly consume foods, beverages, and medications, such as:

  • Coffee and tea
  • Red wine
  • Soy sauce
  • Marinara sauce
  • Dark fruits and berries
  • Colas
  • Sports drinks
  • Tobacco use
  • Antibiotics (tetracycline and doxycycline)
  • Chemotherapy


The enamel on the outside of your teeth protects the softer dentin underneath. The thicker your enamel, the whiter your teeth appear. As you age, your enamel naturally deteriorates, exposing the darker dentin underneath. Some people have naturally thicker enamel, while others are genetically predisposed to thin enamel.

What happens during professional teeth whitening?

Zoom! in-office teeth whitening uses a hydrogen peroxide-based solution to remove deep tooth stains. Before applying the whitening gel, Dr. Lee and the team use a protective barrier to cover your gums and lips during treatment. The gel settles into your teeth for about 15 minutes while the team activates the LED light.

Most people require three 15-minute sessions. However, Dr. Lee tailors the treatment to your specifications so your treatment may take longer than 45 minutes to achieve the desired results.

Immediately after the treatment, the team applies a special fluoride treatment to protect and nourish your newly whitened teeth.

Along with regular brushing and flossing, avoiding foods and beverages that stain your teeth can help you maintain your results. You can also return to Personalee Dental for additional whitening treatments.

To learn more about professional teeth whitening, call Personalee Dental or schedule an appointment online today.