Wood carvers employ several techniques to repair cracks or damage in their sculptures, ensuring longevity and aesthetic appeal. For minor cracks, a mixture of wood glue and sawdust matching the original wood is often used as a filler. The paste is pressed into the crack, dried, and sanded smooth. Larger cracks may require epoxy resin or specialized wood fillers for structural integrity.

For deep splits, carvers sometimes insert small wooden dowels coated with glue to reinforce the area. After drying, excess material is carefully carved away to blend seamlessly with the sculpture. Surface scratches are typically addressed with fine sandpaper and a matching wood stain.

In cases of significant damage, professional restorers might use Dutchman repairs - cutting out the damaged section and grafting in a new piece of matching wood. The repair is then carved to match the original contours. Preventive measures like proper sealing and humidity control help minimize future cracking.

Each repair method requires patience and precision to maintain the artwork's original character while ensuring its structural soundness for years to come.