Maxillary sinusfloor elevation and grafting with human demineralized freeze dried bone

Abstract

In the continuous search for the ideal grafting material in this study the authors used human demineralized freeze dried bone (DFDB) in the maxillary sinusfloor elevation surgery. In total 30 sinusgrafts were performed in 24 patients. Residual lateral maxillary bone height was less than 8 mm but more than 4 mm. The surgical technique used was according to the description of Tatum (1986). In those 30 grafted sinuses a total of 69 ITI full body screw implants were placed 6 months after grafting. Four sinuses exhibited a prolonged healing time. All implants were loaded 4 months after insertion. No implant losses or failures occurred. The rough surface ITI dental implant appeared to be a suitable implant following sinusgrafting with DFDB. According to the results of this study the limited sinusfloor elevation procedure with DFDB appears to be a clinical reliable pre-implant procedure.

Clinical, histological and histomorphometrical study of maxillary sinus augmentation using cortico-cancellous fresh frozen bone chips

“…Freeze-dried or lyophilized grafts possess inferior osteoinductive properties, mechanical properties, and strength when compared to frozen grafts (Steinberg et al, 2004). Our clinical experience that there is no real need to position a membrane against the packed bony window in order to avoid the invasion of tissues, coincides with the evidence available in the literature (van den Bergh et al, 2000;Stricker et al, 2003). Careful sinus filling and mucoperiosteal elevation represent appropriate barriers for surrounding tissues.…”

Maxillary Sinus Functions and Complications with Lateral Window and Osteotome Sinus Floor Elevation Procedures Followed by Dental Implants Placement: A Retrospective Study in 60 Patients

“…4 The crestal approach is considered to be a more conservative method for SFE. 26 The highest value in the literature is 36/81 (44%). 20 The complications in our study showed the lower end of the reported rates, however it is all the more important to evaluate the outcome after the perforation of Schneiderian membrane and other complications.…”

“…Even small nonobserved perforations that are contingently to be overseen during surgery can pose a risk if left untreated. They should be followed and treated thoroughly, although they can fold together, 20,26,27 and virtually disappear.…”

Prognosis of closure of large sinus membrane perforations using pedicled buccal fat pads and a resorbable collagen membrane: case series study

“…However, if the perforation is greater than 2 mm wide, it is better to close the perforation area using absorbable biomaterials, tissue adhesives, or platelet-rich plasma (PRP) gel15. It is well established that risk of bone-graft material loss and implant failure is higher in cases with a perforation complication than without14,16.…”