PMC4241701_01
Periapical radiographs. The 8 mm tapered implants were placed using the osteotome sinus floor elevation procedure with grafting material (right sinus) and without grafting material (left sinus). In all controls after surgery, implants were clinically stable. A radioopaque area corresponding to the augmented sinus floor was present around the implants placed without graft and around and above the implants placed with graft.
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fig1
Periapical radiographs with crowns were taken at 1, 3, and 6 years (Figure 1).
CBCT exam at 5 years. Note the absence of Schneiderian membrane thickening on the coronal view of implant placed with grafting material (right sinus, second molar site) and without grafting material (left sinus, second molar site). The CBCT confirms that the implant in the left sinus protruded into the sinus whereas the implant in the right sinus was completely embedded in peri-implant bone.
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fig2
The 5-year control included a CBCT analysis (Figure 2).