So the bioprinting is an alternative means to construct a replicate tooth (as opposed to CNC milling).

Replicate teeth can be used as a less invasive/quicker healing alternative to implants under some conditions:

https://www.replicatetooth.com/for-patients/

"The REPLICATE System can only be used if the root of the original tooth is still in place. Also your dentist will need to evaluate if the surrounding bone structure is healthy enough to accept a REPLICATE Tooth."