A device for inserting a threaded dental implant (I) in a patients jaw-bone as well as for loosening and removing a threaded dental implant (I) mounted and possibly osseointegrated in the alveolus jaw-bone of a patient. An ultrasound vibration actuator, e.g. a piezoelectric transducer, generates ultrasonic vibrations with a frequency within the range 20-50 kHz, preferably within 24-36 kHz, and preferably in a direction around the longitudinal axis of the dental implant (I). The actuator, being a handpiece (H) structurally connected with a handpiece head (HD). A fitting means (F), e.g. a socket, is positioned in the head (HD) of the handpiece (H), the head (HD) being arranged for entering the patient's mouth. The fitting means (F) is shaped to provide a rigid engagement directly with the dental implant (I1,I2) or indirectly by an adaptor (AD1,AD2) being rigidly tightened on top of the dental implant (I1,I2) platform. The fitting means (F) thus transmits ultrasonic vibrations to the dental implant (I1,I2) for either inserting a dental implant or alternatively loosening the dental implant from the jaw bone.
