1. Professional In-Office Whitening
This method involves a dentist applying a high-concentration bleaching agent, often accelerated by light or heat to achieve fast results. One of the most popular in-office treatments is Zoom Whitening.

Pros:

Immediate and noticeable results, often in a single session.
Supervised by a dental professional, reducing the risk of sensitivity or gum irritation.
Effective for both surface and deeper stains.

Cons:

Expensive, with costs ranging between $300 and $1,000 depending on the clinic.
Requires a dental visit, which may not suit everyone’s schedule.

2. Take-Home Whitening Kits (Prescribed by Dentists)
In this method, a dentist customizes whitening trays to fit your teeth perfectly. You’ll use these trays at home with a bleaching gel provided by the dentist.

Pros:

More affordable than in-office treatments while still effective.
Convenient for use at home and allows for gradual whitening.
Safer than over-the-counter kits due to professional guidance.

Cons:

Results take longer (1–2 weeks) compared to in-office treatments.
Requires consistent use for optimal results.

3. Over-the-Counter Whitening Products
These include whitening strips, pens, toothpaste, and over-the-counter kits. Popular options are widely available in stores and online.

Pros:

Affordable and accessible without a dental visit.
Easy to use for minor surface stains.

Cons:

Results are often less noticeable and short-lived.
Some products can cause tooth sensitivity or gum irritation if overused.

4. Natural Remedies for Teeth Whitening
Common DIY approaches include brushing with baking soda, oil pulling, or using activated charcoal.

Pros:

Inexpensive and can be done at home.
Uses natural ingredients, appealing to those avoiding chemicals.

Cons:

Limited scientific evidence to support their effectiveness.
Risk of damaging enamel with abrasive methods like baking soda or charcoal.