In the conventional abutment technique for fixing dentures, if fixtures are not implanted in parallel with one another, it is difficult to couple dentures to abutments. In this case, an additional surgery is necessary to make the fixtures parallel to each other, or additional parts are necessary. To solve the above problems, the present invention provides an angle/position adjustable attachment for fixing dentures, including: a rotation base insertable into a fixture recess of a fixture； a ball joint angle restriction cover disposed above the rotation base； and a ball joint disposed between the rotation base and the ball joint angle restriction cove.本發明涉及一種能夠自由調節角度和位置的假牙固定用附著體，其包括：旋轉引導體，其下部插入於固定物的固定物槽，以與具有周圍形成有螺紋且設在中央的固定物槽的固定物相連接；球形接頭角度限定蓋，其位於上述旋轉引導體的上部，內部具有貫通孔；球形接頭，球形接頭下部安裝在上述球形接頭角度限定蓋的旋轉引導體的內側中間傾斜部的內側。
