I claim the ornamental design for a prosthetic dental implant, as shown and described.
FIG. 1 is a perspective view of a prosthetic dental implant showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevation thereof, side opposite and the front and rear aspects being identical;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a cross-sectional view thereof taken along line 5—5 in FIG. 2;
FIG. 6 is a perspective view of a modified embodiment of the design shown in FIGS. 1 through 5;
FIG. 7 is a top plan view thereof;
FIG. 8 is a left side elevation thereof, the side opposite and the front and rear aspects being identical;
FIG. 9 is a bottom plan thereof; and,
FIG. 10 is a cross-sectional view thereof taken along line 10—10 in FIG. 7.
The broken line showing of portions of the design is included for the purpose of illustrating environmental structure and forms no part of the claimed design.