Immediate Implant Placement Simultaneously with Ridge Augmentation in the Maxillary Esthetic Region Using Allograft Bone Ring versus Titanium Mesh Guided Bone Regeneration

Objective: The present study aimed to assess ridge augmentation with an allograft bone ring versus GBR with titanium
mesh, and immediate implant placement (IIP) in the maxillary esthetic zone. Materials and Methods: The 12 patients
with 14 defective sockets were randomly divided into two groups: three females and four males in the control group
(Titanium mesh-GBR), and three females and two males in the study group (Allograft bone ring). Patients had postoperative
clinical examinations each day for the first week, then once a month for the next six months. Results: : At 6
months post-surgery, all cases in the control group healed well and showed relative bone gain (7.09±1.56mm^2), and
even though four of them had wound dehiscence, only one of them completely healed during the follow-up period. In
the study group, at 6 months following surgery, the relative bone gain was (2.76±1.06^2). All cases healed well, with no
dehiscence or infection. Except for two cases of allograft ring failure due to early exposure within two weeks after
surgery, which didn’t respond to local measures or disinfected applications. Conclusions: Those certain two
simultaneous procedures achieved promising and advantageous results, therefore they could be used as an alternative
treatment to other graft techniques, in particular for defective sockets in the maxillary aesthetic region.