Bone expander drills are an alternative to osteotomes for the expansion and condensing of the atrophic mandible and maxilla in preparation for dental implant placement. Expanders are also an alternative to the maxillary sinus elevation technique.Surgical Trauma decreases by using the Bone expanders
Expanders are driven into the bone with a ratchet wrench or low speed hand piece. This decreases the surgical trauma of osteotomes. Bone expanders improve the clinical success by improving stability, maintaining bone density and increasing fixation.The bone expander technique is less traumatic for the patient than working with a hammer and chisel