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Is there a day when your doctor cleans your teeth with an army of micro-robots?

It may take a long time for the dentist to visit and treat with mechanical tools to remove plaque and dental plaque, but what if the doctor can implant an army of micro-robots in the mouth to remove these deposits accurately and without direct intervention?

The dental plaque is a biofilm formed on the surface of the tooth.

In an article published by Tech Explor, a team of engineers, dentists, and biologists from the University of Pennsylvania suggested that they could develop some small-scale robots specializing in microscopic oral cleaning. The project was based on two types of automatic systems, one designed to operate on the surface of the teeth while the other worked in confined spaces.

Scientists have shown that these stimulating robots stimulate the tiny biological membranes accumulated in the teeth, a sticky mixture of bacteria bound to each other in the form of a protective squamous, whose accumulation causes problems such as gum infections and tooth decay.

We can use these robots in many other areas where they can maintain the cleaning of water pipes and catheters as well as reduce the risk of cavities, gum infections and improve dental implants.

The research was published in the journal Science Robots, and was overseen by Dr. Hyun Ko of the Faculty of Dentistry and Dr. Edward Steiger of the College of Engineering and Applied Sciences at the University of Pennsylvania.

"We benefit from the experience of microbiologists, clinicians and engineers to design the best microbial elimination system, which is very important for other biomedical areas that include drug trafficking as we approach an era," says Dr. Ku . After antibiotics ".

"The removal and treatment of fine biofilms requires a lot of manual work, and we hope to improve treatment options and reduce the difficulty of treatment," Steiger said.

Sticky layer
Biomembranes are a sticky layer that forms on biological surfaces, such as joints and teeth, since the viscous layer provides protection against antimicrobial agents.

The researchers said that they relied on previous work to remove the materials accumulated by innovative means, mainly the use of nanoparticles containing iron oxide and push it to work on a catalyst. In a second phase, hydrogen peroxide releases free chemical radicals to kill the bacteria and remove the microbiological membranes in a targeted manner.

The University of Pennsylvania's team of dentists, led by Dr. Stegger, previously worked on a robotic platform using iron oxide nanoparticles and adopted it in the form of building blocks to build microbes. Engineers can control the movement of these robots through a magnetic field.

The researchers confirmed that they were able to design two types of automated systems, called "antimicrobial stimulant robots" capable of removing micro membranes.

This involves placing the iron oxide nanoparticles in one solution and directing them by magnetic field to the soiled surfaces in a way that resembles the work of the plow back and forth. The second system involves incorporating nanoparticles into gelatin molds into 3D shapes and pushing them to target the biofilms that block the closed tubes.

In both cases, the bacteria were killed effectively and the surrounding microbial membranes were removed with high precision. After experimenting with the particles growing on the surface of the glass and hanging glass tubes, researchers have experienced a more common application of these techniques: removing microbial membranes from the hard-to-reach parts of human teeth.

The chances of biofilm growth after the cleaning process are very small, Kuo said, and researchers can accurately determine the course of these microbes, whether inside catheters, water pipes or hard-to-reach dental surfaces.

"We think of robots as automated systems based on the information they collect, so we can see the biocompatible images collected by nanoparticles or other medical media," says Steiger.

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