PMC6875248_01
(a) Clinical image shows peri-implantitis, hypertrophy, and severe gingival inflammation. (b) Computerized tomography scan. Preoperative view showing insufficient bone in the apicocoronal and buccolingual dimension to place implants according to the prosthetic needs. (c) Clinical image showing bone defect. (d) Clinical image prior to fixing the membrane on the palatal side showing the graft that completely covers the defect. (e) Clinical image with the membrane completely in place. (f) Panoramic radiograph post-GBR. (g) Clinical image shows tissue healing at three months. (h) Computerized tomography scan. Postoperative view showing robust bone regeneration in the area corresponding to the radiopaque marks on the surgical stent. (i) Panoramic radiograph postimplant surgery. (j) Clinical view of the implant-supported fixed prosthesis. Frontal view. (k) Clinical view of the implant-supported fixed prosthesis. Maxillary occlusal view.
CRID2019-2713542.001.jpg
PMC6875248_01_CRID2019-2713542.001.jpg
fig1
Clinical examination showed the presence of gingival hypertrophy and peri-implantitis (Figure 1(a)). The bone defect was calculated on the basis of three-dimensional (3D) computational analysis of the CT imaging and measured 1.9 cm MD, 1.8 cm BP, and 2.8 cm in height (Figure 1(b)). Then, a ridge incision was performed, and bone tissue was exposed (Figure 1(c)). After positioning the graft material which was left protruding from the crest, another palatal (distal) screw was used for fixing the membrane (Figures 1(c)-1(e)).