The ornamental design for an intraoralscanner, as shown and described.
FIG. 1 is a front perspective view of an intraoral scanner;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image thereof;
FIG. 5 is a top plan view of thereof; and,
FIG. 6 is a bottom plan view of thereof.
The evenly dashed broken lines in the drawings illustrate the portions of the intraoral scanner that form no art of the claimed design. The dash-dot-dash broken lines define the bounds of the claim and form no part thereof.