PMC3655462_01
Preoperative Dentascan.
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On radiographic examination, Dentascan revealed remaining part of the implant fixture to be still embedded in the bone (Figure 1).
Surgically retrieved implant fragment.
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Under local anesthesia, a mucoperiosteal flap was elevated exposing the fractured implant which was removed by a trephine bur (Figure 2).
Implant placed at mandibular left second bicuspid region.
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The recommended drills were used in required sequence, the endosseous implant was placed immediately after removing the fracture segment (Figure 3) with initial stability of 40 N, and mucoperiosteal flap was approximated with interrupted sutures.
Fixed ceramometal prosthesis is placed (occlusal view).
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Ceramco, York, PA, USA). Consecutively, the implant was loaded with cement-retained metal-ceramic crown (Figure 4).
IOPA radiograph 3 months after prosthetic rehabilitation.
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Reports of 36-month followup at every 3, 6, and 12 months interval have shown successful results so far (Figures 5 and 6).
Dentascan 12 months after prosthetic rehabilitation.
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Reports of 36-month followup at every 3, 6, and 12 months interval have shown successful results so far (Figures 5 and 6).
Scanning electron micrograph shows intergranular fracture of implant (large dimple at the center of implant surface is shown by arrow).
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SEM analysis (Figure 7) for the probable cause of the fracture. Scanning electron micrograph of fracture implant surface shows an extent evidence of intergranular fracture.