What are the differences between hardwood floor refinishing and resurfacing, and which option is more suitable for restoring the beauty of worn-out hardwood floors?

Hardwood floor refinishing involves sanding down the existing finish and applying a new stain and sealant, while resurfacing involves adding a new layer of wood on top of the existing floor. Refinishing is more suitable for restoring the beauty of worn-out hardwood floors as it removes imperfections and brings out the natural beauty of the wood. Resurfacing is a quicker fix but may not address deeper damage or wear.