A series of tips for use with an ultrasonic or piezoelectric dental surgical device are used in osteotomy, ostectomy and osteoplasty procedures or any procedure requiring removal or shaping of bone or other hard tissues. In some embodiments, fissures are provided in a cutting end of the tip to facilitate osteotomy. The tips are shaped so that they are comfortable for the surgeon to use in a proper position, so that when a handpiece to which the tips are releasably attached is held in the conventional manner, the geometry of the osteotomy will be precise and desirable. When energized, the tips readily cut through bone or facilitate shaping of skeletal structures at the surgical site. Methods for use of the tips and systems in which the tips provided the cutting function are also described.本發明揭示與一超音波或壓電式牙科手術裝置一起使用之一系列刀尖，其用於截骨術、骨切開術及骨整形手術或需要移除或塑形骨骼或其他硬組織之任何手術。在一些實施例中，在該刀尖之一切削端中提供裂紋以促進截骨術。該等刀尖經塑形使得外科醫師易於使用該等刀尖於一適當位置中，使得當可拆卸地附接該等刀尖之一手機(handpiece)以習知方式握持時，該截骨術之幾何形狀將係精確且合意的。當經供能時，該等刀尖輕易地切削穿過骨骼或促進手術部位處之骨架結構之塑形。亦描述該等刀尖之使用之方法及其中該等刀尖提供切削功能之系統。
