Saturday September 21, 2019

Teeth-Whitening Products Can Lead To Protein-Rich Dentin Tissue Damage

The researchers pointed out that their experiments did not address whether collagen and other proteins in the teeth can be regenerated, so it is unknown if the tooth damage is permanent. 

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teeth
Unlike most studies which have focused on tooth enamel, the new study focused on dentin, which makes up most of the tooth and has high levels of protein -- most of which is collagen. Pixabay

While using teeth-whitening products can make your smile brighter, they might also lead to tooth damage, researchers have warned.

The study, led by researchers from the Stockton University in the US, found that hydrogen peroxide — the active ingredient in whitening strips — can damage the protein-rich dentin tissue found beneath the tooth’s protective enamel.

Human teeth is made up of three layers — the outer tooth enamel, an underlying dentin layer and connective tissue that binds the roots to the gum.

Unlike most studies which have focused on tooth enamel, the new study focused on dentin, which makes up most of the tooth and has high levels of protein — most of which is collagen.

tooth
The study, led by researchers from the Stockton University in the US, found that hydrogen peroxide — the active ingredient in whitening strips — can damage the protein-rich dentin tissue found beneath the tooth’s protective enamel. Pixabay

The team demonstrated that the major protein in the dentin is converted to smaller fragments when treated with hydrogen peroxide. In additional experiments, they treated pure collagen with hydrogen peroxide and then analysed the protein using a gel electrophoresis laboratory technique that allows the protein to be visualized.

“Our results showed that treatment with hydrogen peroxide concentrations similar to those found in whitening strips is enough to make the original collagen protein disappear, which is presumably due to the formation of many smaller fragments,” said Kelly Keenan, Associate Professor at the varsity.

teeth
Human teeth is made up of three layers — the outer tooth enamel, an underlying dentin layer and connective tissue that binds the roots to the gum. Pixabay

The researchers pointed out that their experiments did not address whether collagen and other proteins in the teeth can be regenerated, so it is unknown if the tooth damage is permanent.

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Further, they plan to characterize the protein fragments released when collagen is treated with hydrogen peroxide and determine if hydrogen peroxide has the same impact on other proteins in the teeth.

The findings were presented during the 2019 Experimental Biology meeting held in Orlando, Florida. (IANS)

Next Story

Eat Grapes to protect your Teeth from Decay: Study

The results of the study suggests that the natural compound, found in grapes, has been found to tighten Dentin- the tissue which forms the bulk of one’s tooth, lying beneath the tough external enamel

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grapes, improvement of teeth
Consumption of grapes can lead to having healthier teeth. Pixabay

Washington D.C. (USA), June 13, 2017: A recent study has suggested that consumption of grapes can lead to having healthier teeth. A natural compound that is found in grapes, can strengthen the one’s teeth by boosting the strength of fillings and the gums, resulting in protecting the teeth from decaying early, reported ANI.

The discovery can stop people from losing their teeth early- the scientists of the Illinois University at Chicago college of Dentistry, have said. The extract from the grape seed, which is a byproduct of the wine industry is sold at health food stores, has long been considered beneficial in improving cardiac health and better circulation.

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According to ANI’s reports, the substance is being considered to reduce tooth extractions as it can increase the longevity of the tooth colored fillings or the composite resin fillings that are known to last no more than five to seven years.

The results of the study suggests that the extract has been found to tighten Dentin- the tissue which forms the bulk of one’s tooth, lying beneath the tough external enamel. Hence, when the teeth get damaged, the remaining part can be strengthened to bond with the materials utilized in fillings.

According to the reports of ANI, this discovery appears as a good news for patients opting for resin-fillings due to the fact that those are more aesthetically pleasing; even though those are not as strong as the amalgam-fillings, lasting for 10 to 15 years or even more than that.

Dr. Ana Bedran Russo, a researcher, stated that decay forms around the failed filling and then the seal gets damaged then. The team is working on reinforcing the interface so that the resin bonds better to the Dentin; ANI reported.

Tooth decay is caused due to acid production from plaque that forms in one’s teeth.

The acid begins to damage the surface of the teeth forming holes referred as cavities, when plaque is allowed to form in the teeth. The cavity then starts eating away the second surface of tooth material, lying beneath the enamel- the Dentin.

According to ANI reports, researchers stated that better adhesion is provided by interlocking the collagen rich Dentin and the resin, without having to rely on moisture.

The study appeared on the Dental Research journal.

– prepared by Antara Kumar of NewsGram. Twitter: @ElaanaC