A kind of X-ray of snap-in location holds piece device, includes: pedestal, the first type become material, second type becomes material and clamping piece, and X-ray and X-ray machine exposure tube is cooperated to use. The base top surface and bottom surface are respectively equipped with the first type of installing and become the first positioning region of material and the second positioning region of installing second type change material, and clamping piece installs what side of base, and the grasping part with clamping X-ray. This creation becomes material by the first type of pedestal upper and lower end faces and second type becomes material by sufferer dental articulation, the the first three-dimensional tooth print for forming corresponding dental surface shape pattern is printed with the second three-dimensional tooth, and the level device that can reuse contraposition is collectively formed with the second three-dimensional tooth print for the first three-dimensional tooth print, enable pedestal through same position of the level device resetting into sufferer oral cavity, so that dentist, odontologist is tracked the use for the treatment of or implant operation.一種咬合定位的X光持片器,包含:基座、第一型變材、第二型變材以及夾固件,並配合X光片與X光機照射管使用。該基座頂面及底面分別設有裝設第一型變材的第一定位部與裝設第二型變材的第二定位部,而夾固件裝設於基座側面,並具有夾固X光片的夾持空間。本創作藉由基座上下兩端面的第一型變材與第二型變材受到病患牙齒咬合,形成對應牙齒表面形狀樣態的第一立體齒印與第二立體齒印,而第一立體齒印與第二立體齒印共同形成能重複使用對位的準位裝置,使基座透過準位裝置能重複定位至病患口腔中的同一位置,以便於牙醫師進行追蹤治療或植體手術的使用。