From the Guidelines
The safest method for teeth whitening is using over-the-counter whitening toothpastes and ADA-approved whitening strips containing low concentrations of hydrogen peroxide (typically 5-10%). When considering teeth whitening, it's essential to prioritize methods that minimize risks to oral health, particularly tooth sensitivity and gum irritation. According to the most recent and highest quality guidelines, maintaining good oral hygiene is crucial, which includes brushing teeth twice a day with a mild fluoride-containing, non-foaming toothpaste, as suggested in the study 1.
Key Considerations for Safe Teeth Whitening
- Use toothpastes with mild abrasives and small amounts of hydrogen peroxide or carbamide peroxide.
- Apply ADA-approved whitening strips for 30 minutes daily for 1-2 weeks, following package instructions.
- For sensitive teeth, consider products containing potassium nitrate to reduce discomfort.
- Regular brushing, flossing, and dental check-ups are essential alongside whitening treatments to ensure overall oral health.
Given the information from 1, while it does not directly address teeth whitening, it emphasizes the importance of gentle oral care practices, which aligns with the recommendation for using mild and safe whitening methods. Therefore, focusing on over-the-counter whitening toothpastes and ADA-approved whitening strips as the safest approach for teeth whitening is a decision that prioritizes minimizing morbidity, mortality, and improving quality of life by reducing the risk of oral health complications.
From the FDA Drug Label
Active Ingredient Hydrogen Peroxide (stabilized) 3% Directions ...
The safest method for teeth whitening is using a product containing Hydrogen Peroxide as the active ingredient, with a concentration of 3% 2. To use it safely, follow the directions:
- Apply a small amount of product
- Use up to 4 times daily after meals and at bedtime or as directed by a dentist or doctor 2
- For children under 12 years of age, supervision is recommended
- For children under 2 years of age, consult a dentist or doctor 2
From the Research
Safest Methods for Teeth Whitening
To safely whiten teeth, it is essential to consider the following methods and precautions:
- In-office tooth whitening using hydrogen peroxide (H₂O₂) has been practiced in dentistry for over a century without significant safety concerns 3.
- At-home tooth whitening using peroxide-based materials can be safe and effective when used properly, with the most common side effects being tooth sensitivity and gingival irritation 3, 4.
- Vital tooth bleaching, including in-office and at-home bleaching, has been adopted as an effective and safe method for whitening natural dentition 4.
Precautions and Risks
When whitening teeth, it is crucial to be aware of the potential risks and take necessary precautions:
- Tooth sensitivity and gingival irritation are common side effects of tooth whitening, but they are usually mild to moderate and transient 3, 5.
- Cervical root resorption is a possible consequence of internal bleaching, and tooth sensitivity is experienced in 15-78% of patients undergoing external tooth bleaching 5.
- Hydrogen peroxide can induce genotoxic effects in bacteria and cultured epithelial cells, but the effect is reduced or totally abolished in the presence of metabolising enzymes 5.
- To minimize risks, it is recommended to use tooth-bleaching products with gingival protection, avoid using H₂O₂-containing products in patients with damaged or diseased soft tissues, and prefer minimal amounts of low-dose H₂O₂ for nightguard vital bleaching 5, 6.
Best Practices
To ensure safe and effective tooth whitening, follow these best practices:
- Use manufacturer's protocol and instructions for tooth whitening products 6.
- Inform patients of the risks associated with tooth whitening and instruct them on identification of adverse occurrences so that they may seek professional help as needed 6.
- Monitor at-home tooth bleaching to maximize benefits while minimizing potential risks 7.