Changing the Way that Root Canal Treatments Are Done (image) Oregon Health & Science University Share Print E-Mail Caption Using a 3-D printing-inspired process, Bertassoni and team created artificial blood vessels in the lab. Seven days after injection into human premolars, vessels formed within the teeth. Credit OHSU - Kristyna Wentz-Graff Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.