Densah™ Bur Technology for Osseodensification
Versah™ LLC introduces a new option for dental implant osteotomies
Since the early days of dental implantology, osteotomies have been prepared using standard drills designed for use in industrial applications. These drill designs have proved to be functional for dental applications as implant success rates have been satisfactory over time, but osteotomy preparation techniques have still been lacking for various reasons.
Limitations of Standard Drills
Standard drill designs used in dental implantology are made to excavate bone to create room for the implant to be placed. The goal is to achieve implant stability, which is believed to increase implant osseointegration success. This is more important now because many clinicians are implementing immediate-loading protocols into treatment. Removing bone is contrary to achieving the implant stability desired. Standard drill designs, in twist or fluted shapes, cut bone effectively but typically do not produce a precise circumferential osteotomy. Osteotomies may become elongated and elliptical due to chatter of the drills. Implant insertion torque is then reduced, leading to poor implant stability and potential lack of integration. Osteotomies drilled into narrow bone locations may produce dehiscence buccally or lingually, which also reduces implant stability and requires an additional bone grafting procedure, adding cost and healing time to treatment.
A New Option for Osteotomies
Versah™ LLC now offers implant clinicians an alternative to the use of standard drills to prepare dental implant osteotomies with Densah™ Bur Technology. Rather than excavating bone tissue, Densah Burs densify bone through a process known as osseodensification.
Osseodensification is a novel biomechanical bone preparation technique used to place a dental implant. It is a low plastic deformation of bone due to rolling and sliding contact with the rotating Densah Bur. Irrigation is used with the bur to eliminate overheating and create a hydrodynamic compression wave in the osteotomy. Osseodensification occurs when load is well controlled beneath the ultimate strength of bone. While regular twist drills or straight fluted drills have two to four lands to guide them through the osteotomy, Densah Burs are designed with more than four lands and flutes. This design provides haptic feedback to precisely guide the burs through bone, eliminating potential chatter.
Densah Burs are proprietary surgical instruments that offer clinicians versatility during surgery. During the osseodensification technique, surgeons increase the bur diameters in sequence in a counterclockwise direction (800 to 1,500 rpm), which allows the expansion of a cylindrical osteotomy without excavating any bone tissue (Densifying Mode). When needed, Densah Burs precisely cut bone at (800 to 1,500 rpm) in a clockwise direction (Cutting Mode). Densah Burs are designed to be used with standard surgical engines.
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