Welcome to WASHINGTON ORTHODONTICS Over the past 20 years, Washington Orthodontics has built a reputation in the Sumter and Columbia communities for providing excellence in orthodontic treatment and results. Our orthodontic specialists, Dr. Kent W. Washington and Dr. Kent T. Washington, a father-son team, understand that orthodontics can be a transformative experience, and they want each patient to develop the healthy, confident, and beautiful smile that he or she deserves. Our goal is to change lives by providing lovely and lasting smiles for all our patients. We do this by using the latest in braces technology, including Invisalign®, while maintaining a friendly, personalized family-run environment.