TOLA KIT-Tool of Lateral Approach Composition of tools forming sinus lateral window in safe and speedy way. Used in surgery cases : Residual bone within 1~3mm, Perforated membrane at crestal approach, Placement of multiple implants. LAC : Lateral approach cutter -When you use LAD, It is Guide drill to prevent that slide and catch correct position. LAD : Lateral approach drill -It is Marking drill of using Lateral approach. -You use safely because it is possible depth control structure. -Bone chip have accumulated edge part of LAD when LAD form bone hole. And if it touch sinus membrane, it can prevent damage. -To safe surgical operation is possible because you can confirm to hole perforation and observe special structure of vein, septum. Sonus curette -When you lift maxillary sinus sugery, it is useing Curette.