Introduction

A new titanium reinforced dense polytetrafluoroethylene mesh (TR-dPTFEM) has recently been introduced for vertical ridge augmentation (VRA). Since primary closure is required, the literature lacks information on its behavior in case of premature exposure. To the author's knowledge this is the first report about TR-dPTFEM complication management.

Case presentation

A TR-dPTFEM was used for the VRA in the molar region of the upper right maxilla. The defect was filled with a mix of particulate autogenous bone and porcine xenograft in a 1:1 ratio. A collagen membrane covered the hole pattern of the TR-dPTFEM to prevent soft tissue growth within the grafted material during the first weeks. After a 4 month uneventful healing period, a 4 mm exposure occured without infection. Patient was prescribed 0.2% chlorhexidine mouth rinse 3 times a day and manual cleansing with gauze soaked in 3% hydrogen peroxide, and was recalled for weekly follow-up. One month later the clinical situation was unchanged an the site was re-entered. After TR-dPTFEM removal, the regenerated tissue appeared to be covered with a thin layer of connective tissue. The favorable bone quality made it possible to obtain the primary stability of two implants. At implant uncovering a gingival graft augmented the keratinized mucosa width. Two screw-retained crowns were delivered 4 months after implant insertion and the 1-year follow-up showed perfectly maintained hard and soft tissues.

Conclusion

A late TR-dPTFEM exposure, managed under strict hygiene control, did not affect this VRA. The augmented bone remained stable 1 year after prosthetic loading.

One sentence summary

Exposure of a titanium reinforced dense polytetrafluoroethylene mesh did not influence bone regeneration in a vertical ridge augmentation.

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