Minimum abutment height to eliminate bone loss: influence of implant neck design and platform switching

This retrospective study quantitatively analyzed the minimum prosthetic abutment height to eliminate bone loss after 4.7-mm-diameter implant placement in maxillary bone and how grafting techniques can affect the marginal bone loss in implants placed in maxillary areas. Two different implant types with a similar neck design were singularly placed in two groups of patients.

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Hybrid and fully-etched surface implants in periodontally healthy patients: A comparative retrospective study on marginal bone loss

The aim of this study was to compare the survival rate of and marginal bone loss (MBL) around 2 types of implants with the same design, but with different surfaces: fully “sandblasted and double-etched” (SDE) implants and hybrid (H) implants, with an apical SDE-surface and a coro- nal machined-surface.

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