Lehigh Valley Smile Designs The caring team at Lehigh Valley Smile Designs strives to provide patients in Bethlehem, PA, the highest quality, most comfortable dental care in a relaxing, state- of-the-art environment. Your smile says a lot about you. It reveals your sense of humor, shows affection, radiates confidence and brightens your entire face. But if you’re hiding your smile because it’s not as attractive or healthy as it should be, you’re sending a negative message to everyone you meet.