Many dental procedures allow for implant placement in partially or totally edentulous patients. Despite the availability of various implant and abutment types on the market, it often becomes quite challenging to achieve the biological and esthetic goals in a patient who has ridge deficiencies. Problems arise from the lack of adequate bone quality and quantity…

Prosthetic abutment height and peri‐implant mucosal thickness are con‐ sidered factors that influence marginal bone remodeling during biological width es‐ tablishment around dental implants. However, no clinical studies have evaluated their simultaneous effect on marginal bone loss (MBL).

This preliminary clinical and radiographic study examined the survival, the marginal bone loss (MBL), and the influence of prosthetic abutment height (AH) on MBL, around hybrid implants placed in two groups of partially edentulous patients: healthy (HP) and periodontally compromised (PCP) patients.

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.

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.