Teeth whitening, commonly known as ‘bleaching’, has become one of the most popular dental procedures requested by the public. People want a whiter and more eye-catching smile. In response to this, many options for teeth whitening have been made available. There are home-based kits that are in the form of toothpastes, gels, or films. Professionally applied in-office based systems are applied with the supervision of a dental team. These are stronger and consist of higher concentration agents. Regardless how you choose to whiten your teeth, you should be informed of the risks.
Increased tooth sensitivity and gum irritation are the most common side effects. Research has also shown that softening and roughening of the tooth surface have occurred. Additionally, there is an increased risk for deterioration of fillings and crowns on teeth that have been treated with whitening agents. It is important to speak with your dentist to ensure you create a plan that will provide results you will love in the safest way possible.
How do our teeth get stained?
Stains can be broken down into two categories. Those from the inside (intrinsic) or those from the outside of the tooth (extrinsic). Intrinsic stains are due to increase in age, genetics, antibiotics, or too much fluoride. Extrinsic stains are due to environmental factors such as drinking coffee, tea, or red wine. Certain foods that have color called chromogens can also contribute to discoloration.
Types of teeth whitening
Toothpastes: these typically contain higher amounts of abrasives, and they act in a way that scrubs off the stains. These toothpastes do not contain bleach but another whitening compound (carbamide peroxide) that can help.
Over-the-counter Strips/Gels: introduced to the market in the late 80’s. These strips/gels contain whitening product that are usually worn once or twice a day for 30 minutes. These are effective and results can be seen within a few days.
In-Office Whitening: professionally applied whitening is the quickest and most effective way to obtain desired results. Products used have a higher concentration of whitening material. Also, when done professionally special care is taken to ensure the gums are not irritated. Results can be seen after one application, but more dramatic results can be obtained with several applications.
The newest research shows that whitening teeth too aggressively has negative side effects. It can increase sensitivity, change the surface structure, and potentially harm crowns or fillings. Consulting with your dentist is a great first step to make sure you are effectively and safely getting the results you desire. Research has also put an end to the mystery of ‘does light activated bleaching work better than the regular kind?’ The simple answer is: no there are no significant benefits to light activation. Effectiveness of bleaching and results are dependent on two factors: concentration and duration. The stronger the concentration of carbamide peroxide and the longer it is applied to the teeth control results. Dr. Shohreh Sharif and her team at Greater Washington Dentistry have years of experience and can help you achieve the smile you love.
Dr. Shohreh Sharif has been practicing dentistry for 25 years. She is: Associate Professor, Howard University College of Dentistry, American Board of Pediatric Dentistry Diplomate, American Orthodontic Society IAD Top Pediatric Dentist among Leading Physicians of the World Fellow, American Academy of Pediatric Dentistry
Acknowledgements: American Academy of Pediatric Dentistry, American Dental Association, Journal of Evidence Based Dental Practices