Rebuilding the Upper Jaw with Your Own Bone: The Symphyseal Bone Graft Approach

Published in Advances in Human Biology — May 2018. Co-authored by Sunil Kumar Mishra, Ramesh Chowdhary, PadmakarS Patil, and Dr. B. Srinivas Rao.

Sometimes a patient wants dental implants but simply does not have enough bone in the jaw to support them. This is especially common in the upper front region — the part of your mouth that is most visible when you smile. Years of tooth loss, trauma, infection, or poorly fitting dentures can cause the bone to shrink to a point where there is not enough width or height to safely place an implant.

In these situations, the bone needs to be rebuilt before implant placement can proceed. One of the most reliable ways to do this is using autogenous bone — bone harvested from the patient's own body. This case report demonstrates how Dr. Srinivas successfully managed a patient with a severely compromised upper front jaw using bone taken from the chin area, known as a symphyseal bone graft.

The Patient's Challenge The patient presented with missing upper front teeth and significant bone loss in the anterior maxilla. Clinical examination and radiographic assessment revealed that the remaining bone ridge was too narrow and too short to accommodate dental [dental implants](/services/dental-implants) of adequate size as part of [full mouth rehabilitation](/services/full-mouth-rehabilitation). Without bone augmentation, the only option would have been a removable denture — something the patient strongly wanted to avoid.

Why Bone from the Chin? The mandibular symphysis — the front part of the lower jaw, commonly referred to as the chin — is one of the most popular donor sites for bone grafting in implant dentistry. There are several reasons for this:

* Same surgical field: Both the donor site (chin) and the recipient site (upper jaw) are within the mouth, so there is no need for a separate surgical site on the hip, leg, or skull. This means less overall surgical trauma and a more comfortable recovery. * Excellent bone quality: Chin bone is predominantly cortical (dense, hard bone), which provides excellent structural support and volume when grafted to a deficient area. It also contains a healthy proportion of cancellous (spongy) bone, which is rich in bone-forming cells that accelerate healing. * Predictable healing: Autogenous bone — your own bone — is considered the gold standard in grafting because the body does not reject it. It contains living cells, growth factors, and proteins that actively stimulate new bone formation at the recipient site. No synthetic or animal-derived material can fully replicate this biological advantage. * Minimal donor site complications: When harvested carefully with proper technique, the chin area heals well with minimal long-term effects. Temporary numbness in the lower lip or chin can occur but typically resolves within weeks to months.

The Surgical Approach Dr. Srinivas performed the procedure in two stages. In the first surgery, a block of bone was carefully harvested from the patient's chin region. This bone graft was then shaped and secured to the deficient upper front jaw using titanium fixation screws. Alloplastic bone granules — a synthetic bone substitute — were packed around the graft to fill any gaps, and a guided tissue regeneration membrane was placed over the site to protect the graft and promote undisturbed healing.

The patient was allowed to heal for several months while the grafted bone integrated with the existing jaw and new bone formation occurred. After confirming adequate bone volume through follow-up imaging, dental dental implants were placed in the second stage.

The Outcome The bone graft successfully augmented the deficient ridge, providing sufficient bone volume for implant placement. The implants achieved strong primary stability and integrated well with the newly formed bone. The patient ultimately received fixed implant-supported teeth in the upper front region — a result that would not have been possible without the bone grafting procedure.

What This Means for Patients Being told you do not have enough bone for implants can feel like a dead end. But in many cases, bone grafting can rebuild the foundation your implants need. At Maxface Dental Clinic, Dr. Srinivas evaluates your bone condition with 3D CBCT imaging and determines whether autogenous bone grafting, synthetic grafting materials, or alternative approaches like zygomatic implants offer the best path forward for your specific situation.

The goal is always the same — to find a way to give you permanent, natural-feeling teeth, even when the starting conditions are far from ideal.

About the Publication Journal: Advances in Human Biology

Published: May 2018

Type: Clinical Case Report

Read the original publication on ResearchGate.