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Vertical Ridge Augmentation in the Anterior Maxilla Using a Dual-Texture e-PTFE Membrane and Autogenous Bone: A 2- to

David González¹, Herman Sahlin², Christer Dahlin^3,4

¹Private Practice, Clinica Ortoperio, Murcia, Spain.

Clinical Oral Implants Research

|September 12, 2025

Summary

This study shows that using titanium-reinforced expanded polytetrafluoroethylene (e-PTFE) membranes with autogenous bone grafts provides excellent vertical ridge augmentation in the anterior maxilla. Dental implants placed after 12 months showed a 100% survival rate and stable bone levels.

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Area of Science:

Oral and Maxillofacial Surgery
Periodontology
Regenerative Dentistry

Background:

Vertical ridge augmentation is crucial for dental implant success in the anterior maxilla.
Achieving predictable outcomes requires effective bone grafting techniques and biomaterials.
Non-resorbable membranes are often used in guided bone regeneration (GBR).

Purpose of the Study:

To evaluate a novel protocol for vertical ridge augmentation.
The protocol utilizes titanium-reinforced dual-texture expanded polytetrafluoroethylene (e-PTFE) membranes and 100% autogenous bone.
The study assessed outcomes after 12 months of bone healing prior to implant placement.

Main Methods:

A retrospective case series of 14 patients treated between 2016 and 2021.
Large anterior maxillary defects with vertical and horizontal components were addressed.
Autogenous bone grafting combined with non-resorbable Ti-reinforced dual-texture e-PTFE membranes was employed.

Main Results:

Fifteen membranes were used across 14 patients with mean initial vertical defects of 7.5 mm.
No membrane exposure or complications requiring intervention occurred during the 12.6-month healing period.
Complete bone fill was achieved in all defects, with 23 implants placed showing a 100% survival rate and stable marginal bone levels (0.08 mm) after up to 5 years.

Conclusions:

The protocol using Ti-reinforced e-PTFE membranes and autogenous bone grafts yields excellent vertical augmentation in the anterior maxilla.
A 12-month healing period before implant placement is recommended for predictable results.
The study highlights the importance of appropriate GBR methods, materials, and healing times for successful clinical outcomes.