Related Experiment Video
Updated: May 1, 2026
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A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
6.6K
[Bone graft reconstruction for posterior mandibular segment using the formwork technique].
D Pascual1, R Roig2, C Chossegros1
1Service de chirurgie maxillo-faciale et stomatologie du Pr Blanc, centre hospitalier La-Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
Summary
The formwork technique reconstructs posterior mandibular bone, enabling long implant anchorage. This method enhances primary implant stability and reduces operative risks, making it suitable for complex pre-implant grafting.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Bone Grafting Techniques
Background:
- Posterior mandibular bone grafting presents challenges due to mechanical constraints, limited vascularization, and mucosal coverage difficulties.
- The formwork technique is specifically adapted for this challenging anatomical region.
Observation:
- The technique involves preparing the recipient site, harvesting ramus bone grafts, and assembling them using a formwork stabilized by mini-plates.
- Gaps are filled with bone powder, and the reconstructed bone volume supports implants longer than 8mm.
Findings:
- The formwork technique allows for the reconstruction of sufficient bone volume for anchoring long dental implants (>8mm).
- High primary implant stability and torque are achieved, with implants supported by both formwork cortices and native bone.
- Ramus harvesting minimizes operative risks.
Implications:
- This technique offers a viable solution for pre-implant bone augmentation in the posterior mandible, accommodating prosthetic requirements.
- The proximity of the inferior alveolar nerve does not preclude the use of this method.
- Adaptable formwork size and positioning enhance prosthetic outcomes and implant longevity.
