Generally, teeth whitening is safe, but it's essential to consult a dentist before starting any whitening treatment. Individuals with sensitive teeth, gum disease, or dental restorations might experience complications. A dental professional can recommend the best approach for your specific dental health.

The longevity of teeth whitening varies based on lifestyle habits. Typically, professional treatments can last anywhere from several months to a few years. Avoiding staining substances like coffee, tea, and tobacco can help maintain the results longer.

Over-the-counter products can provide noticeable improvements, but they often have lower concentrations of whitening agents. Professional treatments conducted by dentists tend to be more effective and efficient, providing faster and more long-lasting results.

Some individuals might experience temporary tooth sensitivity after whitening treatments. This sensitivity usually subsides after a short period. Dentists often provide desensitizing treatments or recommend special toothpaste to minimize discomfort. If sensitivity persists, consult your dentist for advice.