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Tooth Bleaching and Shear Bond Strength of Composite Resin

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DrPatel's picture
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A recent study evaluated the influence of various time intervals after tooth bleaching with 35% hydrogen peroxide on the bond strength of resin-based com­posite re­storations. Bitten­court, et al published their findings in the March issue of the Jour­nal of the American Dental Associa­tion.

This study in­volved 20 subjects; enamel and dentin blocks were randomly fixed onto the buccal surfaces of posterior maxillary teeth one week prior to bleaching the teeth with 35% hydrogen peroxide. After bleaching, one block of dentin or enamel was re­moved and prepared for bond strength tests according to these time intervals: no bleaching treatment (controls), immediately after bleaching, 7 days after bleach­ing, 14 days after bleaching, and 21 days after bleaching. The study found that there were significant differences be­tween the time intervals (P < .05); shear bond strength values of resin-based composite to enamel and dentin were lower immediately after the bleaching treatment. The authors concluded that 35% hydrogen peroxide reduces the bond strength to enamel and dentin. Clinically, the re­sults of this study suggest that clinicians should allow 7 days to elapse after completion of in-office bleaching with 35% hydrogen peroxide before plac­ing adhesive restorations.

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Drsumitra's picture
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Tooth Bleaching and Shear Bond Strength of Composite Resin

Certain measures must be taken after having your teeth whitened. This way, the teeth won’t revert back to their previous color.

There are particular foods that enable teeth to maintain their white color. If these foods are eaten on a regular basis, it’s possible that your teeth will remain white and any possible bleaching won’t be necessary.

Firm fruits and vegetables, particularly apples, green beans, cauliflower, celery, and carrots, help to scrub teeth. These foods also generate the flow of saliva, which is a critical step to counteract the acid and preserve your teeth.

There are some dairy-based products, like cheese, that help keep teeth white. The high levels of calcium help do the trick. It also doesn’t hurt that the lactic acid reduces decay.

You want to stay away from foods and beverages that stain teeth, if possible. Tobacco-based products, along with soy sauce, soft drinks and red and white wine leave stains on your teeth.

Abiding by these eating habits will enable you to maintain the white teeth you desire

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Tooth Bleaching and Shear Bond Strength of Composite Resin

Procter & Gamble

Crest Whitestrips Supreme provides custom tray-level whitening in the form of a strip. It contains 14% hydrogen peroxide—Procter & Gamble's highest concentration available in a professionally dispensed take-home whitening regimen—and can remove up to 20 years of stains in 21 days. The strip is preloaded so that patients receive a safe, consistent, and controlled dose every time. The slim design of the strip ensures that the dose comes in contact with teeth only, without increasing exposure to the gingiva. For more information, call (800) 543-2577.

Discus Dental

Sold in more than 100 countries, NiteWhite ACP and DayWhite ACP are the only take-home whiteners that contain amorphous calcium phosphate. ACP reduces sensitivity, rebuilds enamel, reduces fadeback, and improves luster, thereby increasing patient comfort and satisfaction. It now comes in ecofriendly packaging. NiteWhite ACP is available in 10%, 16%, and 22% carbamide peroxide and the high-performance 6% hydrogen peroxide Turbo formula. DayWhite ACP is available in 7.5% and 9.5% hydrogen peroxide and 38% carbamide peroxide equivalent.

The Zoom! Whitening Pen is a great addition to the Zoom! line of whitening treatments. The proprietary formula is great for patients to keep their white smiles on the go. A convenient touch-up option between whitening treatments, the 5.25% hydrogen peroxide gel extrudes through a small brush that easily applies on to each tooth. Your patients will want one at home, at the office, and in their purse. Each kit contains one or 2 pens with 30 applications each.

Zoom!, the in-office whitening brand, is available in a convenient take-home option for your patients. Clinically proven to whiten an average of 6 shades in 3 nights, it delivers whiter smiles in less time. The 6% hydrogen peroxide gel provides all of the benefits of ACP, potassium nitrate, and fluoride, combining unparalleled sensitivity management with enhanced whitening results. With its hard case, patients will love it for easy travel.

Take home the power of BriteSmile whitening with Discus' complete family of products. BriteSmile To-Go Whitening Pens are a convenient way for your patients to keep their white smiles on the go. The easy-to-use, stylish pen applicator brushes a 5.25% hydrogen peroxide formula directly onto the tooth to touch up between whitening treatments wherever and whenever. Each pen lasts for approximately 15 days of whitening applications. It is available in a 3-pen pack or a single-pen pack.

 

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