Interpositional Graft: Addressing Limited Jawbone Height
When dental implants are needed but the vertical bone height is insufficient, interpositional grafting—a highly advanced surgical option—offers a predictable and effective remedy. This technique is particularly useful for patients with severe bone height deficiencies in the upper or lower jaw where standard bone grafting methods may fall short.
At Smilo Dental Implants Edinburgh, we utilise interpositional bone grafts to rebuild the jaw’s vertical dimension. Often known as the “sandwich technique”, the procedure involves creating a controlled split within the jawbone and inserting a graft between the layers. As healing progresses, the bone integrates with the graft material, creating a robust and elevated base suitable for future implant placement.
Unlike conventional grafting techniques that simply add bone on top or alongside existing structures, the interpositional approach provides a more direct and mechanically stable augmentation, increasing the predictability and long-term success of dental implants.
Our skilled implant team in Edinburgh will use 3D imaging and detailed assessments to determine whether this surgical solution is right for your individual needs.
Step-by-Step Overview of the Interpositional Grafting Procedure
- Comprehensive Consultation & Diagnostic Imaging – 3D CT scans and X-rays are used to evaluate bone height, quality, and determine your eligibility for implant treatment.
- Surgical Planning & Access – A personalised treatment plan is created, identifying the exact site for the bone enhancement procedure.
- Bone Segment Separation (“Sandwich Technique”) – A section of the jawbone is carefully separated, forming a space where graft material can be placed.
- Insertion of Graft Material – The gap is filled with a suitable grafting substance—whether autogenous (from your body), allograft (donor), or synthetic.
- Stabilisation for Healing – The area is secured with mini-screws or plates to hold the bone in place, allowing proper healing over the next 3 to 6 months.
- Implant Placement – Once full bone integration has occurred, your implants are inserted into the newly strengthened and elevated bone structure.
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What You Can Expect After Surgery:
✅ Slight swelling and discomfort in the days following surgery—manageable with pain relief prescribed by your clinician.
✅ Soft food diet recommended in the early healing phase to avoid pressure on the graft site.
✅ Routine follow-up visits to track bone integration and assess readiness for implant placement.
✅ Avoidance of smoking and excessive alcohol, both of which can impede healing and reduce graft success. -
Why Choose Interpositional Bone Grafting?
🔹 Effectively rebuilds vertical bone height, making implants viable in complex cases.
🔹 Offers greater mechanical stability than traditional grafting methods.
🔹 Can reduce the need for alternative, more invasive procedures such as zygomatic implants.
🔹 Enhances implant survival rates due to improved bone support and integration.
If you’ve been told you’re not a candidate for implants due to poor bone height, interpositional grafting may open the door to a stable, natural-looking smile.
Contact Smilo Dental Implants Edinburgh today to book your consultation and explore whether this technique is right for you.