I claim the ornamental design for an adjustable water jet teeth-cleaning shower attachment, as shown and described.
FIG. 1 is a perspective view of an adjustable water jet teeth-cleaning shower attachment showing my new design, with the hose shown broken in the middle to indicate an indeterminate length;
FIG. 2 is a front elevational view thereof;
FIG. 3 is an end elevational view thereof;
FIG. 4 is an elevational view of the opposing end thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view showing the adjustable water jet teeth-cleaning shower attachment in use; the broken lines depict environmental structure for illustrative purposes only and form no part of the claimed design.