The invention provides a one-off drill structure improvement.The system includes: a drill body and an identification unit；Wherein: the drill body,The whole is cylindrical.The upper end system has a clamping area.The clamping area is used for the mechanical clamping of drilling teeth.A drilling area is arranged at the lower end.The surface of the drilling area is provided with at least one cutting edge.For drilling；The drilling area is also provided with a set of terminals.It is provided at the upper end of the drilling area；And the identification unit,The system has a through hole.And the assembly terminal of the drill body is in a fixed state.When it is used, it absorbs blood and causes color change of the identification unit.To indicate the basis of use,Prevent operators from reuse；In this way,A dental drill for implant teeth is provided.It has the function of absorbing blood and triggering discoloration.It can effectively mark the used dental drill.In order to improve the quality of medical treatment,Isolate the risk of infection.To prevent the drill from being reused.本創作提供一種一次性牙鑽結構改良，係包括：一牙鑽本體及一辨識單元；其中：該牙鑽本體，其整體呈圓柱狀，上端係具有一夾設區，該夾設區係供鑽牙機械夾持使用；下端處則設有一鑽削區，該鑽削區表面設有至少一刀刃部，供進行鑽孔使用；又該鑽削區係設有一組接端，其設置於該鑽削區上端處；及該辨識單元，係具有一通孔，而設置於該牙鑽本體之組接端處呈固定狀態，供使用時吸附血液而令該辨識單元產生變色，藉以標示已使用過之依據，防止操作人員重複使用；藉此，提供一種植牙時所使用之牙鑽，具有吸收血液而觸發變色功能，可有效標示已使用過之牙鑽，藉此增加醫療品質，隔絕感染風險，俾達到防止該牙鑽重複使用之功能者。
