Having nicely arranged pearly whites is very desirable. It adds to beauty, self-worth and confidence. Teeth that are out of alignment are less appealing aesthetically. If they are crowded, they have a propensity to gum disease and maybe even tooth decay. Crowded teeth may affect the way you bite and contribute to bizarre headaches and joint problems. Often, they may contribute to poor chewing. Crooked teeth can be a lot more deleterious than just appearance. So if you have crowding, or teeth not meshing properly, have them checked out by your dental professional.