Prefabricated Blood Vessels Look to Revolutionize Root Canals
- Dental Administrative Assistant
- July 12, 2023
- 689 views
- 3 min read
While the root canal procedure is an effective way of saving a tooth that has become infected or decayed, it can result in the tooth becoming brittle and susceptible to fracture over time. Recent research by OHSU in Portland, Oregon has resulted in a new process that will allow dentists to insert new blood vessels into teeth, saving the tooth while avoiding it degrading due to the lack of a blood supply.
A New Method
More than 15 million root canals are conducted annually in the United States. Because the current operation involved removing infected dental tissues and replacing them with synthetic biomaterials covered by a protective crown, the process eliminates the tooth’s blood and nerve supply, rendering it lifeless and void of any biological response or defense mechanism.
According to principal investigator Luiz Bertassoni, D.D.S., Ph.D (assistant professor of restorative dentistry in the OHSU School of Dentistry, and assistant professor of biomedical engineering in the OHSU School of Medicine.) “Without this functionality, adult teeth may be lost much sooner, which can result in much greater concerns, such as the need for dentures or dental implants.”
Along with his colleagues, Bertassoni made use of advanced 3D printing, based on their previous work creating artificial capillaries, to render artificial blood vessels in the lab.
In order to do this, the research team placed a fiber mold made of sugar molecules across the root canal of extracted human teeth and injected a gel-like material, similar to proteins found in the body, filled with dental pulp cells.
The team then removed the fiber, which created a long microchannel in the root canal, and inserted endothelial cells isolated from the interior lining of blood vessels. After seven days, dentin-producing cells proliferated near the tooth walls and artificial blood vessels formed inside the tooth.
The ability to replace the tooth’s blood and nerve supply after a root canal could result in the tooth fully regenerating on its own and, as Bertassoni puts it, “we believe that this finding may change the way that root canal treatments are done in the future.”
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