Denting is removing dents, scratches on the vehicle external body are removed and re-made to look like how it looks before deformation. Painting the body with the nearest matching paint.
Wherever there is a scratch or paint is deformed, that area is scrubbed with a wax is applied on the area.
After making the dent into the original shape, matched paint is applied on the area or whole panel depending up on the length of the scratch or dent.
Do rubbing and buffing on the panel which it is painted. This helps in smoothing the surface of the body.