The dental screw of the present invention includes a head part having a tightening groove for transmitting a rotational force of a driver, and a screw part having screw threads in the longitudinal direction wherein the head part further includes a fixing groove at the central portion of the tightening groove to prevent the screw from being disengaged from the driver. The dental screw driver of the present invention is a dental screw driver including a tightening part and a supporting part wherein the tightening part includes a tightening projection which fits into the tightening groove of the dental screw and a fixing tip disposed at the tip of the tightening part so as to be inserted into the tightening groove. According to the dental screw and driver of the present invention, the screw rarely disengages from the driver when the screw is being tightened or removed from an oral cavity of a recipient, and unexpected accidents caused by a stray screw may be prevented during dental surgical procedures, such as those involving implants and orthodontics.
