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Implant Dentistry:
doi: 10.1097/ID.0000000000000020
Clinical Science and Techniques

A Trabecular Metal Implant 4 Months After Placement: Clinical-Histologic Case Report

Spinato, Sergio DDS*; Zaffe, Davide MBioSc; Felice, Pietro MD, DDS; Checchi, Luigi MD, DDS§; Wang, Hom-Lay DDS, MSD, PhD

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Abstract

Introduction:

The aim of this case report was to histologically evaluate the behavior of a trabecular metal (TM) implant composed of titanium and spatial 3-dimensional tantalum (Ta) trabeculae. This study is the first human histologic case report of this implant.

Case Presentation:

A TM implant was placed in a 54-year-old woman exhibiting moderate chronic periodontitis. After periodontal treatment, the implant was inserted under favorable clinical conditions. Patient was not seen for 4 months because of unrelated breast reduction surgery. At the surgical reopening, periimplant inflammation affecting the coronal third of the implant was observed 4 months after implant placement. With patient’s consent, the implant was removed for histologic analysis. Histology highlighted a greater amount of bone in close contact with Ta trabeculae than titanium surfaces.

Conclusion:

The finding of bone formation around the Ta trabeculae suggests that trabecular metal material promotes bone ingrowth for secondary implant stability. Additional evidence is needed to confirm this observation.

Copyright © 2013 by Lippincott Williams & Wilkins

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