Crestal-Lift-Control Basic is a system for the performance of an easy and safe internal sinus lift. The elevation of the Schneiderian membrane occurs during the transcrestal drilling process. The specially atraumatic design of the Crestal Drill with its four cutting edges and concave head allows for a safe forming of a conical bone flap and is more ideally suited for collecting bone chips. Additionally, the stop sleeve system, which is tailored to the special instruments, prevents the membrane from being injured or punctured. Crestal-Lift-Control Basic is an introductory system with reduced instrument set. Kit Contents Accessories CL00 - Pilot Bur, Length = 16.0mm, Ext. Ø = 2.0mm, RAXLCL020 - Bone Graft Spreader, Length = 18.5mm, Min. Ø = 1.5mm, Ext. Ø = 3.0mm, RAXL Crestal Drills CL004 - Length = 16.0mm, Ext. Ø = 3.3mm, RAXLCL005 - Length = 16.0mm, Ext. Ø = 3.6mm, RAXLCL006 - Length = 16.0mm, Ext. Ø = 3.8mm, RAXLCL007 - Length = 16.0mm, Ext. Ø = 4.1mm, RAXLCL011 - Length = 7.0mm, Max. Drilling Depth = 9.0mmCL012 - Length = 8.0mm, Max. Drilling Depth = 8.0mmCL013 - Length = 9.0mm, Max. Drilling Depth = 7.0mmCL014 - Length = 10.0mm, Max. Drilling Depth = 6.0mmCL015 - Length = 11.0mm, Max. Drilling Depth = 5.0mmCL016 - Length = 12.0mm, Max. Drilling Depth = 4.0mmCL017 - Length = 13.0mm, Max. Drilling Depth = 3.0mm Bur Block BLK618RAXL - Black, 18 RA Slots Optionally Available: CL021 - Depth Gauge, Length = 16.0mm, Min. Ø = 1.4mm, Ext. Ø = 2.3mm Made in Germany Instructions For Use