New dental implants generate energy and are immune to bacteria

Modern dental implants designed for 20 or more years can fail in 5-10 years due to inflammation

or gum disease, then the complex and expensive operation will have to be repeated.

The authors of the new work wanted to solve this problem withusing modern smart implants. According to the researchers, their development implements two technologies: the first, a material with nanoparticles that is invulnerable to bacteria, and the second, an integrated light source for phototherapy: it is energized by natural mouth movements, such as chewing or brushing teeth.

Researchers have studied the material - barium titanate -it has piezoelectric properties that are used in capacitors and transistors. To test its potential, the authors used discs with barium titanate nanoparticles and coated them with Streptococcus mutans, the main component of the bacterial biofilm that causes tooth decay or, in other words, plaque.

They found that the discs were resistant to plaque build-up, best achieved with samples with higher barium titanate concentrations.

Electrical properties of the materialremained, and during the tests it was not leached. The material was also mechanically strong, similar to other compounds used in dentistry. In addition, it did not damage the gum tissue and was safe for the human body.

The authors of the work plan to improve their development so that it can be applied in dentistry.

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