Dental Questions: Do whitening strips work?

Tooth whitening is the most commonly requested cosmetic procedure at dental offices nation wide. Lightening the shade of dental enamel can create a dramatic change that draws attention to your smile. As such, you have probably seen products like Crest WhiteStrips at your local pharmacy and wondered if they were worth the investment. Why would someone choose these over a professional bleaching treatment performed at a dental office? For these answers and more, read on!

Any tooth whitening product that works (from a scientific perspective) will have some concentration of a peroxide compound. Peroxide works by oxidizing the pigments that have leached into your teeth and removing their colors. Typically, dental products contain either carbamide peroxide or hydrogen peroxide suspended in some type of gel. 

The main difference between a whitening strip, a bleach tray and an in-office bleaching session is the concentration of peroxide. Since these compounds are slightly caustic, high levels of peroxide can cause gum irritation or discoloration. For an in-office whitening session, the gums can be safely guarded and isolated, allowing us to use a higher level of peroxide. As a result, you will see an almost instantaneous change in the shade of your dental enamel. With a product like WhiteStrips, the plastic tray is not custom molded to your teeth and is bound to contact your gums or become leaky out the sides. Hence, a lower concentration of peroxide must be used, with noticeable results taking longer to appear. 

Which type of whitening is best? That can only be answered on a patient-by-patient basis. For those looking for a cost effective change without a deadline, over-the-counter whitening strips are a great option. If you're looking for a single treatment that brings almost instant results, in-office bleaching might be better. It really depends on what you hope to accomplish and how much time you can devote to your treatment. If you would like to know more about tooth whitening, dental bleaching or other cosmetic procedures, please give our office a call!

What type of whitening is right for me?

In previous posts, we've discussed the many different tooth whitening products available on the market today. With all the choices, picking one that works for you can be a difficult task. In this article, we will categorize the many methods based on what they do best. Each type has unique advantages and disadvantages, so take a look!

Fastest method: In-office whitening. Products like Phillips Zoom are professionally administered and provide dramatic results in a single visit. A typical appointment is about 80 minutes and matches the results of months of over-the-counter bleaching. 

Cheapest method: Crest Whitestrips and similar products. Over-the-counter bleaching methods will whiten your teeth for the least amount of money. However, they work quite slowly. Expect to use them for weeks/months before you notice a difference. 

Most flexible method: Professional bleach trays. The trays are worn for one hour once a day for two weeks, followed by one day a month for maintenance. You will see fast results and be able to adapt to your own schedule. 

For patients susceptible to "whitening pain:" Professional bleach trays with 10% bleach. Whitening products cause pain because they contain an agent that opens tubules in the tooth to let the bleach in. In some cases the open tubules can cause sensitivity or a sharp "zinging" pain. For these patients, we prescribe a milder bleach along with a fluoride rinse that counteracts sensitivity. This combination seems to be gentle enough for even the most sensitive mouths!

For patients who "just want whiter teeth:" All of the above! Any of these methods will get you to a whiter smile. It's up to you to pick the best product for your specific needs. If you have any further questions, feel free to give us a call!

Types of Dental Whitening

Tooth whitening provides a quick and dramatic improvement to your overall smile. If you've done some research, you have probably found out that there are a number of products and services on the market today. Here is a quick guide to help you pick the best type of whitening for your specific needs!

Home whitening kits- All whitening products that work utilize some form of hydrogen peroxide. The main difference between an over-the-counter solution and something administered by a dental professional is the concentration of peroxide. Products like Crest Whitestrips will give you similar results to in-office whitening, but over a much longer time frame. Given you needs and expectations, this could be the perfect solution!

Whitening trays- These trays are made from a clear material like Invisalign retainers and are custom molded to your teeth. Since they prevent the peroxide from contacting your gums and cheeks, a higher concentration can be used. They are typically used once a day for two weeks, followed by one day a month for maintenance. 

In-office "Zoom" whitening- Here, whitening solutions are directly applied to the teeth under the supervision of a dental professional. The gums are blocked out using a special material and a very high concentration of peroxide is carefully applied to the teeth. The results are instantly noticeable and long lasting. This method achieves the same results as weeks of OTC whitening in about an hour and a half. 

"Mall Whitening" Kiosks- These stands (usually found in shopping malls) offer whitening services for rates somewhere in between home whitening kits and professional in-office whitening. However, the employees operating these stands are not dental professionals and generally cannot offer any products stronger than what you can buy over the counter. Your money is better spent either with a Whitestrip-type product or in an actual dental office. 

Whitening toothpastes, mouthwashes, floss, etc.- Just about every dental product nowadays advertises some sort of whitening ability. However, don't expect to see huge benefits. They are mostly aimed at surface staining, rather than the deep discolorations that cause yellow/ dark teeth. To get vibrant white teeth, you need to seek out a product that contains hydrogen peroxide. 

Natural whitening remedies- In general, whitening products that don't contain hydrogen peroxide (or some form of peroxide) won't really show any benefits. There are a number of instructions online, involving everything from strawberries to oil pulling, but it is unlikely that any of them will actually work. If you're looking to maintain a whiter smile naturally, cut back on pigmented liquids and drink with a straw when possible.

We hope you found our short run down on whitening useful. As always, if you have any questions, please give our office a call!