MIR (Miniature Intraoral Robot) may Change Crown Prepartion in the Future

 

Photo: University of Basel, Catherine Weyer

Sometimes I come across things in my online wanderings that are pretty amazing.  Lots of ideas for dental advancements don't ever make it to market, but that can be for a variety of reasons.  I had heard from a few industry contacts that a robot was being developed that could prepare a tooth for a crown, but I had only heard a few brief comments.  This may not be the same one I heard those whispers about, but I think the odds of that are pretty slim.  Researchers in the Department of Biomedical Engineering at the University of Basel in Switzerland are exploring the possibility of using a robot to prepare teeth for crowns.

Here's the concept and potential workflow:

• An intraoral scan is performed during the appointment when the diagnosis for a crown is made.
• The scan is used to create a special splint that attaches to the teeth and also attaches the robot to the splint.
• The crown prep is digitally planned and the final crown is fabricated prior to the prep appointment.
• The patient returns for the crown appointment.
• The splint with robot is attached to the patient's teeth.
• The robot preps the tooth following the digital prep plan.  It removes the necessary tooth structure to create an exact duplicate of the planned prep.
• The splint is removed.
• The final crown is cemented.

Of course, any dentist reading this can see a lot of potential drawbacks.  What about anesthesia?  What about decay in the tooth?  How is the decay removed?  What about a buildup?  These questions and many others will need to be answered.

However, after saying all of that I'll also say that the overall concept of this is intriguing.  Robots mill things in many industries every day.  Robots are precise and lots of things we use every day are the result of digital mills.  So I'm interested to see where this idea goes and how they work to overcome the problems.  Obviously this idea is in its very earliest stages, but the system has actually been used to prep teeth in the lab.

If you'd like to know more, you can read the article about this on a page at the University of Basel.  There has also been a pretty detailed paper written about this robot that can be read on the IEEE Xplore website.  the title of the paper is Miniature Intraoral Robot (MIR) for Minimally Invasive Tooth Preparation.