Hi doctors, was just wondering what is an osteotome sinus lift for dental implant?

Through the socket: It's where an instrument called an osteotome "lifts' the top of the socket, creating room for a bone graft. Much more conservative than an open sinus lift.

Newer technique: The technique is used when the depth of the jaw is enough for placing a stable implant and only little extra bone (1-3mm) is needed in order to prevent sinus opening or perforation. these techniques have been shown to greatly increase the success rate of dental implant placement in the maxilla.

Crestal Sinus Lift: if there is inadequate bone for placement of an implant beneath the maxillary sinus, a sinus lift can be performed. A lateral wall approach involves creating a window in the wall of the sinus to place the graft material. The crestal approach involves using an osteotome in the site of the desired implant placement to elevate the bony floor of the sinus to allow placement of the graft.