Researchers at the Pennsylvania School of Dentistry in Philadelphia, in order to reduce the probability of implant failure and the costs associated with it, are trying to produce a smart implant with antibacterial capabilities (resistant to the growth of bacteria and causing inflammation) and phototherapy (the ability to produce light energy and accelerating the process of restoration and healing).

In this new implant, a combination of two technologies is used: 1) a substance containing nano particles that is resistant to the accumulation of bacteria. 2) Installing a light source to perform phototherapy, which supplies the energy it needs through natural movements of the mouth, including chewing or brushing teeth.

Phototherapy can solve many health problems, but unfortunately, it is not possible to replace or recharge the battery of the light source after implant placement. For this reason, a piezoelectric material has been used in this project. In addition to the inhibitory effect against the accumulation of bacteria and the occurrence of inflammation, this substance can produce the electrical power required for phototherapy through natural movements of the mouth.

In this research, the barium titanate (BTO) material, which has piezoelectric properties and is used in capacitors and transistors, was investigated, and in order to measure the antibacterial property potential of this material, BTO nanoparticle composite discs were exposed to Streptococcus mutans. took After that, the inhibitory effect of discs on biofilm formation was observed and it was seen that its inhibitory effect increases with increasing BTO concentration.

According to recent findings, BTO repels bacteria for a long time by creating a negative surface charge because the cell wall of bacteria also has a negative charge. It is worth mentioning that this long-term effect of BTO is very important because the occurrence of contamination and bacterial infection is a time-consuming process.

Another advantage of this material is its stable power generation property and high mechanical strength compared to other materials used in dentistry. In addition, this material is biocompatible and does not harm the gum tissue and can be used without causing side effects.

Of course, this research is ongoing and more studies are needed so that in the not too distant future this achievement can be used not only for the production of dental implants, but also for the production of other bone implants, including orthopedic implants.