Leatha had a smile makeover with cosmetic dentist Dr. Sean Mohtashami. She quit two bad addictions – smoking and drinking soda – before Dr. Sean would agree to fix her teeth. She shares that quitting smoking was a really hard habit to break, but she lost 50 pounds, and is now soda and cigarette-free. Her before and after are incredible, and Dr. Sean shares this procedure should last her a lifetime.