Precision attachment for denture construction

Claim 1

A prosthesis construction assembly for use in placement and alignment of dental bridge components for the fabrication of human tooth replacements, comprising: a. a rod-like female member adapted to be deposited in a cavity provided in the distal side of an anchor tooth comprising a longitudinal recess within said rod having two parallel side walls and a rounded mesial wall somewhat longer than the side walls so as to provide an end well in which a male member can pivot during the biting stresses to be imposed on the replacement teeth and wherein the recess presents an arched roof with parallel walls when viewed in a transverse section; b. a distally outwardly oriented first flange integral with the ends of the open face of the recess and defining an external planar surface except for the recess portion; c. a male member comprising (i) a rod portion also with a rounded first end and being sized to permit its sliding engagement and retention within the recess of said female portion; (ii) an outwardly oriented second flange portion integral with one arc of the rod portion surface and not extending beyond the point of said first rounded end, said second flange adapted to provide a sliding abutment to the external surface of said first flange; (iii) an elongated bar portion integrally attached to the other end of said male portion and abutting the proximal end of said second flange, which bar serves as an upwardly positioned mandrel during manipulation of the female member for spatial orientation thereof during fabrication; and (iv) a transverse bar disposed intermediate the ends of the mandrel portion and pinned thereto which serves to permit manipulation of the assembly to attain the desired placement of the female portion relative to the sagittal plane of the prosthesis.