Developmental Progress on
3D Printed Bone Grafts

SteinerBio has spent approximately 8 years developing our custom 3D printed OsseoConduct βTCP ridges. We have recently redesigned the structure of the printed ridge with the clinical application in process. To bring you up to speed on our progress, here is a recent case:
Patient presents with a mandible requiring vertical and horizontal ridge augmentation. The graft is designed using the patient’s CT scan.
The final product shows virtually no dimensional change from the designed ridge with very good fit and stability.
Crestal view of the honeycomb design and screw hole.
Due to the precise replication of the computer design, an excellent fit to the underlying bone is achieved.
The patient presents with a knife edge ridge and minimal keratinized gingiva.
The incisions are made in the vestibule to produce a tension free closure.
A resin printed ridge is also created allowing for the bone and soft tissue to be prepared without contaminating the βTCP printed ridge.
The resin ridge also allows for the flaps to be fully reflected for preparation of primary closure and for the screw hole to be drilled.
The cortical bone is perforated to access regenerative cells. Note the screw hole has been beveled to facilitate locating the screw hole for the final placement of the βTCP printed ridge.

The cortical perforations are filled with BioDensification to facilitate the migration of osteoblasts out of the bone and into the graft.

The custom 3D printed ridge is screwed into place. The printed ridge is designed to be microporous to facilitate molecular perfusion. Note how the ridge has absorbed and wicked blood from the base of the graft.

The honeycomb voids of the βTCP ridge are filled with Ridge Graft Kit, which is composed of our osteogenic putty and our OsseoConduct βTCP granules.

A dense-PTFE membrane is used to cover the graft material.
Primary closure.

The sutures and incision lines are sealed with Oral Bond.

Day of surgery.
3 weeks post op. Typical illustrates characteristics of our bone grafts, the graft material near the bone becomes radiolucent due to the ingrowth of immature bone. As the bone mineralizes, the radiopacity increases.

We are very confident in our 3D printed custom βTCP bone grafts. During this developmental phase, we are working on the clinical application to optimize the performance of this material prior to introducing it to the market. However, this technology is only available in Sacramento, California where Dr. Steiner currently practices and accepts patients seeking this treatment.


American Society for Bone and Mineral Research (ASBMR)

Tissue Engineering and Regenerative Medicine International Society (TERMIS)