Bone Reformation with Sinus Membrane Elevation: A New Surgical Technique for Maxillary Sinus Floor Augmentation

Abstract

The study showed that there is great potential for healing and bone formation in the maxillary sinus without the use of additional bone grafts or bone substitutes. The secluded compartment created by the elevated sinus membrane, implants, and replaceable bone window allowed bone formation according to the principle of guided tissue regeneration. The precise mechanisms are not known, and further histologic studies are needed. Sinus membrane elevation without the use of additional graft material was found to be a predictable technique for bone augmentation of the maxillary sinus floor.

Evaluation of new bone formation after sinus augmentation with two different methods

“…13,14 Considering the results of this study, all sinus floor elevation procedures showed substantial new bone formation in both study groups. In this controlled and randomized clinical study evaluating bone formation, the new bone formed with the lateral sinus floor elevation seen on CT scan imaging presented a high density.…”

“…12 In a recent study, 19 implants were inserted in 12 sinuses without any grafting material. 13 The authors did not report any implant loss and advocated that no grafting material was needed for sinus floor elevation. Using a bone graft substitute instead of autogenous bone eliminates the need to harvest the patient's own bone, thus potentially reducing the risk and pain associated with the harvest procedure.…”

“…Moreover, bone substitute and PRF provide an osteoconductive lattice on which host osteogenesis can take place, but they lack osteoinductive properties. 13 Also the new bone formed appeared to depend on the volume of the liquid used in the infiltration procedure.…”

Spontaneous bone formation on the maxillary sinus floor in association with an extraction socket

“…In 2004, they described a new surgical technique for maxillary sinus augmentation with only sinus membrane elevation and replacement of the bony window 5 . The replacement of the bony window could have been another factor in bone formation by preventing soft-tissue growth into the sinus, which would disturb the maintenance of the secluded space 4,5 . Surgical trauma to the maxillary sinus could also have contributed, as explained in the study on the situation after the Caldwell-Luc operation 9 .…”

Surgical Techniques for Augmentation in the Horizontally and Vertically Compromised Alveolus

“…Achieving bone formation in defects via the innate ability of local tissues such as periosteum and the schneiderian membrane without introduction of a graft has been documented since early 2000. Lundgren and colleagues 19 described the formation of new bone in the sinus simply by doing a sinus lift. No graft material or exogenous bone growth-promoting factors were placed in the wound.…”