Real wood paneling is usually individual boards jointed together, but a lot of “wood” paneling is actually thin photo-lamination sheets designed to look like solid wood. This is an important distinction, because real boards can be repaired using conventional woodworking methods, while the faux wood requires more cosmetic treatment.
A slight scratch in a board, for example, simply reveals more of the same wood below, while a deep scratch in paneling can expose a paper backing or plywood core. Paneling sheets also have a clear surface film that is hard to match with any type of protective finish.
Minor scratches in solid wood can be sanded out and refinished. Sometimes you can do a bit of sanding on a paneling sheet annd then apply paste wax in a shade close to the original finish.
When using a putty stick, fill the scratch and then wipe away any putty on the surface of the paneling with a clean cloth. If the damage goes deeper, you may need to replace a section or the entire sheet.
For severe scratches on quality paneling, consult a furniture repair expert who can conceal scratches with a putty stick, furniture polish, or an “almond stick”—a compressed fabric stick impregnated with almond oil.