Welcome to the practice of Yi-Chen Liu DDS, MS When you’re our patient, everything we do is focused on you: your comfort, your unique needs, and your smile. At our office, Dr. Yi-Chen Liu and our team members know the difference having healthy, straight teeth and a beautiful smile will make in your life, no matter your age. Not only will you have a healthier bite and fewer dental issues, but you won’t feel self-conscious about the appearance of your teeth. Instead, you’ll smile freely and happily, knowing you look great!