The crestal sinus elevation kit is a series of increasing drills with reverse-threaded diameters and lengths that push the removed crestal bone particles forward to lift the sinus membrane. Once the sinus membrane is lifted by the initial set of drills a double-ended probe is used to determine if the membrane has been reached, Next the second series of drills with the same length but increased diameter opens the floor of the sinus by pushing the bone particles released from the sinus wall forward to increase the lifting of the membrane.  After two of three increases in the diameter of the wall opening, additional grafting material is introduced to lift the membrane further until the membrane is elevated enough to place the desired length and width of the implant. to be placed. The use of a Biologic such as BMP2, Gem21, or Emdogain can be added to increase the speed of mineralization. The placement of the implant can be completed at the time of grafting if there is adequate bone to stabilize the implant, and the period of osseointegration usually requires 3 to 4 months. A YouTube video called "crestal sinus elevation by deplaque.com" is available to watch the progress on a sinus elevation model included with the kit, along with the probe and depth stop plugger used to place the graft material. The kit is guaranteed and can be returned within 30 days for a refund minus a 15% restocking fee..A model sinus and an adjustable plugger are used to push graft material into the sinus, elevating the sinus further. We recommend using Osteogen collagen plugs, which are easy to cut into quarters and then into smaller pieces. They are pushed into the sinus, elevating the sinus membrane. Sinus practice models are included with the kit to practice on.. If you cannot successfully elevate the sinus membrane on the model, we suggest you return the kit for a refund and not use it on patients