Peri-Implantitis Associated With a Pre-Existing Pathology
This case report presents a treatment of peri-implantitis associated with a pre-existing pathology. Peri-implantitis around implant #19 was detected from pus discharge upon probing. Guided bone regeneration was performed to treat the peri-implantitis with the administration of antibiotics. The histopathologic evaluation of soft tissue taken from the circumferential defect around the implant exhibited a cyst. The postsurgical CBCT and the follow-up radiograph confirmed the maturing bone graft and a reduced size of the defect around the implant.
Figure 1. Preoperative condition. (a) Displacement of implant-retained crown. (b) Pus discharge upon probing around implant. (c) Radiograph revealing crestal bone loss around implant. Figure 2. A series of radiographs showing radiolucent lesion with focal radiopaque area. (a) Pre-implant radiograph. (b) Guiding pin placed during implant placement. (c) Implant placed. (d) Radiograph at the second stage. Note reduced size of radiolucency.
Figure 3. Guided bone regeneration. (a) Infrabony circumferential defect around implant after removal of soft tissue. (b) Demineralized ground cortical bone grafts were filled into the defect. (c) Collagen resorbable membrane was placed. Figure 4. Histopathologic evaluation (hematoxylin-eosin stain, original magnification ×10). Figure 5. Postoperative condition after 3 months.
Figure 6. Postoperative cone beam computerized tomograph 8 months after surgery. Figure 7. Postoperative radiograph 14 months after surgery.
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