Experts from the University of Oregon have presented new data on the bioactive glass. Thanks to its use in dental implants, dentures and fillings, the final product is more resistant to degradation from exposure to the bacteria. Such glass may also replace many minerals used in the present fillings and prostheses.

Extend the life of composite fillings – an essential step in prosthetic dentistry. According to recent studies, each year more than 122 million of materials and composite fillings are made in the USA. On average, this seal withstands masticatory movements about 600,000 per year. And according to some reports, the average life of such seals, installed in the front teeth, is about 6 years.

The results of the study were published in the journal of dental research work supported by the National Institutes of Health.

“Biologically active glass powder in recent years been used in the treatment of bones”, – said Jim Kruchik, professor and expert at Ohio State University. “We see the use of this material in dentistry as a promising direction. Bacteria forming cavities are destroyed under the influence of the material, moreover, they are not able to reproduce in such conditions. Therefore, it is important for our discovery of a trend in dentistry. ”

The bioactive glass is produced in conjunction with silica and phosphorus oxide. It looks like a powder-like material. “Biologically active” glass is called, because the human body very well perceive it, unlike other biomedical inert products. In addition, the bioactive glass is a very tough material and can replace many excipients. In combination with polymers, it is perfect for the production of dental fillings.

According to Professor Kruchika, all seals will eventually become useless. The new carious lesions usually develop on the border separating the filling and the tooth. This is called secondary tooth decay. He literally eroded and demineralized.

Bioactive glass may extend the life of the seal. According to recent studies, the depth of penetration of bacteria into the seal created by this material is significantly less than with other composite materials. Seals that are based on bioactive glass should also slow down the process of secondary tooth decay and replace the minerals that have been lost during the development of caries. Due to these advantages, the tooth is recreated, with extended battery life. The conducted studies molars were used, taken from the people. They simulated dental restoration was carried out. Notably, the laboratory from Ohio was one of the first where we could test the latest seal in simulated oral cavity. According to Professor Kruchika if laboratory results are confirmed by clinical tests, the active window will be immediately included in the list of composite materials for the manufacture of seals.

Antibacterial effect such seals is achieved due to the fact that the bioactive glass stimulates the release of calcium ions and phosphate. These in turn have a detrimental effect on the oral microbes by neutralizing thereby an acidic environment.

“My colleagues have already shown in previous studies that the composites, which contain up to 15% of bioactive glass, are comparable or even superior to quite expensive composites, which are used in dentistry today,” – said Professor Kruchik.
Author: DentalGEEK

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Доктор стоматолог. Лечение зубов в Виннице. Ул. Первомайская 20, www.stomaline.com.ua, +380673468508/