Scoring is the technique term for slashing bread dough before baking with a sharp knife or lame. A slash on the loaf's surface allows the dough to properly expand in the oven without tearing the skin or crust and also allows moisture to escape from the loaf. It also releases some of the gas, mainly carbon dioxide, that is trapped inside the dough. Proper scoring also allows the baker to control exactly where the loaf will open or bloom. This significantly improves the appearance of baked breads. Scoring, finally, creates varieties in forms and appearance. It brings out the bread baker's artistic talent, allowing a unique signature.