ALVEOLAR RIDGE AUGMENTATION WITH “SCREW TENT-POLE TECHNIQUE” : A STUDY OF 10 CASES

Dr. Setu P. Shah, Dr. Krishna Shah, Dr. Bhagyashree Sutaria, Dr. Shreyansh Sutaria, Dr. Deep Shah

Abstract


Purpose: The purpose of this study is to evaluate the 3-dimensional increase in bone volume using screw tent pole technique with demineralized freeze dried bone allograft (DFDBA) in a tenting fashion for future prosthesis.

Materials and method: This prospective study evaluated augmentation in 10 consecutive patients with large 3-D alveolar ridge defects. Alveolar ridge augmentation was performed using demineralized allograft placed around titanium screws to tent out the soft tissue matrix. The alveolar ridges were clinically and radiographically evaluated 4 months after augmentation.

Results: 10 Patients with horizontal and/or vertical soft tissue defect as well as hard tissue defect had undergone the procedure. 0.182 cc (52.9%) mean bone volume fill is noted after 4 months of the procedure. One patient had complete dehiscence of the grafted site with screw & graft exposure requiring subsequent graft. Two patients had partial wound dehiscence and one patient had screw head exposure only. Increase in bone volume was evaluated with special software.

Conclusion: It can be concluded that screw tent-pole technique is an effective treatment in patients with large vertical alveolar defects. This technique involves expanding the soft tissue volume and prevents contraction of soft tissue matrix around the graft, subsequently preventing graft from displacement or physiological resorption. Thus a stable increase in alveolar bone height is achieved by this tent-pole technique.


Keywords


Tent-pole, ridge augmentation, PRF, DFDBA.

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