The ornamental design for a dentalabutment, as shown and described.
FIG. 1 is a perspective view of a first embodiment of a dental abutment of the present invention;
FIG. 2 is a front plan view of the dental abutment shown in FIG. 1;
FIG. 3 is a right side view of the dental abutment shown in FIG. 1;
FIG. 4 is a top view of the dental abutment shown in FIG. 1;
FIG. 5 is a left side view of the dental abutment shown in FIG. 1;
FIG. 6 is a rear plan view of the dental abutment shown in FIG. 1; and,
FIG. 7 is a bottom view of the dental abutment shown in FIG. 1.
The broken lines immediately adjacent the claimed areas represent the bounds of the claim, and all other broken lines are included for the purpose of illustrating portions of the present invention that form no part of the claimed design. None of the broken lines form part of the claimed design.