Transalveolar Sinus Elevation

SURGICAL TECHNIQUE MANUAL

Close sinus lift Procedure

For treating > 3mm residual bone height by safe and close sinus lift procedure:

Autografting the sinus cavity.
Detachment and lifting of the Schneiderian membrane with-no direct contact of the implant.
Avoiding the risk of Infection, rejection and grafting material migration, associates with bone substitute.

The SMART System for close sinus lift procedure

The SMART System transforms a typical closed sinus lift procedure, which entails site preparation, placing graft material and then implant insertion, into a single step technique.

The SMART implant consists of two regions, an apical section that functions as an Osteotome and a coronal section, resembling that of a classic implant, enabling Primary Fixation.

The apical region is characterized by spiral flutes, winding in an opposite direction to the thread direction. This unique geometry enables collection of bone whilst driving it apically. Thus during Implant insertion the apical region simultaneously combines site preparation while channeling residual bone into the sinus cavity.

The apex of the implant has blunt edgeless with bone collected indent feature geometry ensuring that during the elevation procedure there is no direct contact with the Schneiderian membrane.

The sinus floor is raised while protecting the membrane. Once the floor of the sinus cavity has been penetrated, the bone which has been collected by the flow by the flutes at the implant’s apex will follow the floor (which acts as a barrier, so protecting the membrane), thus achieving the needed height for adequate implant length.

Simultaneously the coronal portion of the implant fixates the implant and no further surgical steps are needed.

The System Principle for Close Sinus Lift

The System starts as an Osteotome and ends as an implant.
Using small drill diameter only is to remove as less autogenous bone as possible.
During travelling of the implant through the residual bone, autogenous bone been collected by the flutes are moving forward to the indentation region at the apical end till reaching the sinus floor in a Osseodisplacement process.
The sinus floor is playing a role during the elevation. If opening in the sinus floor is occurred during drilling, it must be smaller than the ’s apical size.
Mild vertical force now is needed to first bump the sinus floor up. While rotating the implant concurrently attention must be made that it moving upward and not dig in place.
The Schneiderian membrane will follow the fractured bony fragment once the sinus floor is been penetrated by the bony particles covered apex.
Now the implant is ready to reach the desire position in a densifying vicinity for an optimal fixation. The space left beneath the Schneiderian membrane is filled with blood clot in order to produce bone formation.

Padding the Apex before coming into contact with the membrane

During travelling through the residual bone, the autogenous bone been collected by the flutes are moving forward to the indentation region at the apical end. Part of it is using as a barrier, ahead of the apex, for lifting the Schneiderian membrane and the rest deploys all around.