Interpositional Grafting: Enhancing Bone Height for Stable Implants
When the bone height in the jaw is insufficient to support dental implants, interpositional grafting offers a highly effective solution. This procedure is particularly useful for patients who require implants but don’t have the necessary bone volume, particularly in the upper or lower jaw.
At Smilo Dental Implants Birmingham, we specialise in interpositional grafts to increase bone height, especially in cases where other traditional bone grafting methods may fall short. Often referred to as the “sandwich technique,” interpositional grafting involves separating a section of the existing jawbone to create space. A bone graft is inserted between these layers, and once healed, it provides a solid foundation for implant placement.
This approach is a specialised one that requires precision and expertise, combined with thorough pre-surgical planning. Unlike traditional grafting, which builds bone over time, interpositional grafting offers a more immediate and stable augmentation, which can significantly improve the chances of long-term implant success.
Our experienced team will use advanced imaging techniques and clinical assessments to determine whether this procedure is suitable for you.

Step-by-Step Process of Interpositional Bone Grafting
- Initial Consultation & Imaging – We use CT scans and X-rays to assess your bone structure, density, and suitability for implants.
- Surgical Planning & Bone Site Preparation – A detailed plan is developed, and the area requiring augmentation is carefully marked.
- Bone Segmentation (“Sandwich Technique”) – A small portion of the jawbone is separated, creating space for the bone graft to be inserted.
- Graft Placement & Bone Augmentation – A bone graft (autogenous, allograft, or synthetic) is inserted between the two separated bone layers to increase height.
- Stabilisation & Healing Process – The surgical site is secured using microplates or screws to ensure proper healing. The healing period typically takes between 3 to 6 months.
- Implant Placement After Bone Maturation – Once the bone is fully integrated, implants are placed securely in the newly augmented bone for long-term stability.

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What to Expect After Interpositional Grafting Surgery:
✅ Mild swelling and discomfort during the first few days, managed with prescribed pain relief.
✅ Soft food diet during the initial healing phase to minimise pressure on the grafted area.
✅ Follow-up visits to monitor the healing process and ensure optimal bone integration.
✅ Avoidance of smoking and alcohol to promote healing and reduce complications. -
Why Consider Interpositional Grafting?
🔹 Restores lost bone height, enabling successful implant placement, even in cases of severe bone deficiency.
🔹 Stronger and more stable foundation for implants than traditional bone grafts.
🔹 Reduces the need for more invasive procedures, such as zygomatic implants.
🔹 Higher implant success rates due to improved bone integration.
If you’ve been told that you don’t have enough bone for implants, interpositional grafting could be the solution you’ve been looking for. Contact us today to schedule a consultation and discuss your options.