What Is Teeth Whitening and Is It Harmful?

Teeth whitening uses peroxide-based whitening agents and light activation to break down stain molecules inside the tooth structure. The result can last from 6 months to 1 year, and with good care it may last 3 to 4 years depending on habits and tooth condition.

Is teeth whitening harmful?

Teeth whitening is generally safe when performed with correct technique, appropriate concentration, and products approved for dental use. However, unknown whitening products or incorrect use can irritate the gums, increase sensitivity, and affect oral health. For safety, whitening should be done at a reputable dental clinic.

Common whitening methods

In-office whitening is performed by a dentist and can produce faster results. At-home whitening trays may be prescribed for controlled use outside the clinic. Internal bleaching can be used for some root-canal-treated teeth that have darkened from the inside.

Teeth whitening process at Dr. Khoa

The dentist cleans the teeth, checks the current shade, and selects the expected whitening result. A desensitizing step may be used if needed. The lips are protected with Vaseline, the gums are isolated, and the eyes are protected before whitening begins.

A 35% peroxide whitening gel is applied and activated with light in controlled cycles, usually three cycles depending on the case. After treatment, the final shade is checked and the dentist gives aftercare instructions.

The whitening cost at Dr. Khoa usually ranges from 1.5 million to 2.5 million VND depending on the method and condition of the teeth.

Notes after teeth whitening

Avoid strongly colored foods and drinks such as coffee, tea, soda, and dark sauces during the first 24 hours. Avoid smoking, because tobacco stains can quickly reduce the whitening result.

Mild sensitivity may occur for 1 to 3 days. Use whitening trays only as instructed by the dentist. Whitening toothpaste can be used 1 to 2 days per week, while fluoride toothpaste should remain part of daily care. For consultation, call 0932539207.