BASEL, Switzerland, July 19 (World Daily Times) — A tiny robot may someday help dentists prepare teeth for crowns, but the University of Basel project is still in the prototype stage. Researchers there say the device, called MIR for Miniature Intraoral Robot, could eventually make crown preparation faster and reduce the number of dental visits, according to a paper in IEEE Transactions on Medical Robotics and Bionics and a University of Basel post.
What is MIR?
MIR is a miniature robot built for use inside the mouth. The University of Basel team describes it as about the size of a wine cork, measuring 43 by 26 by 28 millimeters. Dr. Yukiko Tomooka said it “is designed to be small enough to fit comfortably into an open mouth.”
The robot is meant to attach to a custom-fitted dental splint made from a scan of the patient’s mouth. In the researchers’ design, the motors and control systems stay outside the mouth, with flexible drive shafts, cables and tubes connecting them to the robot.
How could it change a crown visit?
The team’s proposed workflow is simple: a dentist scans the tooth in an initial appointment, plans the crown preparation digitally and could order the crown right away. In that setup, the researchers say, a patient might not need a second appointment just to shape the tooth for the crown.
What did the lab tests show?
So far, MIR has only been tested in the lab. The University of Basel team tested it on synthetic resin tooth models and on a ceramic material with hardness similar to tooth enamel. The sources available do not show any patient testing.
In those bench tests, the researchers reported a positional error of less than 0.2 millimeters. They also reported drilling forces below 5 newtons. The current version does not yet have sensors that can directly measure or correct its position.
What is still missing?
Professor Georg Rauter, the research group leader, said the next step is to add sensors and a camera so MIR can monitor its position and treatment progress. He said future versions should be able to continue from the right spot after a power outage based on sensor data, without making the robot larger.
That means MIR should be seen as an engineering prototype, not a device patients are likely to encounter soon. The available sources describe it as early-stage research and do not show human trials or regulatory clearance.
Why this matters to patients
For a patient, the main promise is not a robot dentist. It is the chance that some crown work could one day take fewer visits and less time in the chair. For now, the practical takeaway is more modest: a tiny robot in dentistry is moving from concept toward testing, but it is not ready for routine care yet.
