This creation relates to a structural improvement of the plug-type abutment body, and in particular to the structural improvement of a pin-type abutment of an artificial root. The upper end of the plug-type abutment body is a positioning seat for combining the crown； the lower end is a hexagonal card head for positioning with the abutment body and the implant. The latching head of the plug-type abutment body has a taper surface, and the pin-shaped abutment body is engaged with the implant body to make the plug-type abutment body and the implant more closely and stably fit and fixed. When used, it provides better stability of the abutment body, so that the abutment body is not easy to loosen, and the position of the fitting hex clamp of the implant can be accurately found in the dental impression to avoid the normality error during the impression. The friction effect generated by the taper can be utilized to make the two pieces more closely fit and have considerable practicability.本創作係有關一種插銷式支台體結構改良，特別是指一種人工牙根的插銷式支台之結構改良。該插銷式支台體之上端為一定位座，用以結合齒冠；下端為六角形之卡掣頭，用以與支台體與植體之嵌合定位。該插銷式支台體之卡掣頭係具有錐度表面，與植體內孔之嵌合口卡掣後，使得插銷式支台體與植體更緊密且穩固的嵌合固定。當使用時提供支台體更佳的穩固性，讓支台體不易鬆動，並且在牙科印模時能精準找出植體之嵌合口六角卡掣的位置，以避免印模時之常態性誤差；更可利用該錐度產生的摩擦效應，使其兩者得以嵌合更為緊密，具有相當之實用性。
