Making smiles in Ithaca, NY wider and brighter since 2002

Welcome to Twin Sheep Dentistry, where professionalism and exceptional care merge seamlessly. Located conveniently in the Shops at Ithaca Mall, our office is dedicated to delivering top-quality dental services. With a commitment to staying abreast of the latest advancements in technology and dental knowledge, our skilled team provides comprehensive solutions tailored to your unique needs. We prioritize your comfort and well-being, creating a soothing environment where you can feel at ease throughout your visit. From preventive care to cosmetic enhancements and multi-disciplinary full-mouth restorative treatments, trust us to deliver gentle, efficient, and professional dental care that exceeds your expectations.

Creating healthy smiles in Ithaca for over 20 years, Dr. Mavis Ng is known to be the dentist in Ithaca for her clinical knowledge and skills, as well as her comprehensive and compassionate approach in dentistry. Dr. Ng graduated with honors from the Harvard School of Dental Medicine in 2002. She has publications in the areas of clinical oral implants research, cancer research, and biochemistry. Dr. Ng was awarded a fellowship status by the International Congress of Oral Implantologists in 2009. She has lived in Ithaca since 2002 except in 2007-2009 when she worked as a clinical instructor at Harvard School of Dental Medicine and University of Pennsylvania Dental School. Dr. Ng considers each individual patient’s unique dental needs with a comprehensive approach, encompassing all disciplines including dental implants, hard and soft tissue grafting, aesthetic dentistry, root canal treatments, crown and bridge, extractions, orthodontics, as well as various types of dentures. Happily married, Dr. Ng has three children and a dog named Teddy. She and her family love to travel, cook, and read.

Dr. Rui (Dr. Ray) Jian enjoys using his talent in sculpting and painting to help patients and bring them healthy and beautiful smiles. Dr. Ray is a Cornell alumnus with a Bachelor's Degree in Biological Engineering. He graduated from Rutgers School of Dental Medicine (formerly UMDNJ) where he received his degree in dental medicine. Upon completing his residencies at Hackensack University Medical Center and Englewood Dental Implant Learning Center in New Jersey, Dr. Ray has since returned to the Finger Lakes region to practice dentistry. Besides being a smile artist, Dr. Ray can be found reading, hiking, practicing yoga, and loves martial arts. Many of these interests were found during his time at Cornell, making his return to Ithaca extra special.

Dr. Victor Sun combines an engineer’s precision with compassionate dental care. Originally from California, he earned degrees in biomedical engineering at UC Irvine before completing his Doctor of Dental Medicine at the University of Pennsylvania. After dental school, Dr. Sun commissioned as a dental officer in the United States Air Force and completed a residency in Advanced Education in General Dentistry. For seven years, he cared for Airmen and their families at bases across the U.S. and the U.K., even serving roles outside of dentistry. During the COVID-19 pandemic, he helped administer vaccines, and when he deployed to the U.A.E. as the Inspector General, he coordinated readiness exercises and handled inspections and complaints. He also led triage teams during mass casualty drills, developing skills in crisis management and leadership. Dr. Sun’s military background has shaped his calm, organized approach to patient care. Now based in Ithaca, where his wife works at Cornell University, he focuses on conservative, technology-driven treatments that maximize tooth longevity. When he’s not seeing patients, he enjoys cooking, making coffee, and traveling with his wife.

Dr. Eric Chen is a general dentist dedicated to providing compassionate, high-quality care tailored to each patient’s needs. Before entering dentistry, Dr. Chen served as a volunteer firefighter, an experience that shaped his strong commitment to putting the well being of others first. His time in the fire service taught him the importance of staying calm under pressure, assessing complex situations carefully, making critical decisions, and earning the trust of the people who depend on him. Dr. Chen brings these same qualities to dentistry. He takes time to listen to each patient, understand their concerns, explain treatment options clearly, and make thoughtful clinical decisions based on both immediate needs and long term oral health. He believes that excellent care requires not only technical skill, but also sound judgment, compassion, clear communication, and a genuine sense of responsibility toward every patient. Dr. Chen earned his Doctor of Dental Medicine degree from Rutgers School of Dental Medicine and completed a General Practice Residency at St. Barnabas Hospital in New York City. There, he gained experience in comprehensive dentistry, dental emergencies, and caring for patients from diverse backgrounds. His goal is to help patients achieve healthy, confident smiles while emphasizing prevention, trust, and lasting oral health. Outside the office, Dr. Chen enjoys traveling, staying active, exploring new foods, and spending time with family, friends, and his two cats. He also has a well known sweet tooth and enjoys discovering new dessert spots. He looks forward to exploring the Ithaca area, one restaurant and ice cream stand at a time.

Originally from Greece, Dr. Evangelos Rossis brings to his practice values shaped by Greece’s rich intellectual and cultural traditions. The Greek appreciation for beauty, balance, and proportion, including the classical ideal of the golden ratio, informs his thoughtful approach to creating smiles that are healthy, natural, and harmonious with each patient’s individual features. Equally important are the Greek traditions of strong family relationships, personal connection, and generous hospitality, which inspire him to make every patient feel welcomed, respected, and cared for. Dr. Rossis earned his Doctor of Dental Medicine degree from Temple University Kornberg School of Dentistry before completing a General Practice Residency at the Philadelphia VA Medical Center. There, he gained extensive experience caring for medically complex patients and managing dental emergencies, implant restorations, oral surgery, endodontics, and comprehensive dental rehabilitation. Dr. Rossis takes time to understand each patient’s concerns, explain treatment options clearly, and develop individualized plans that support long term oral health. He believes that excellent dentistry requires not only technical skill, but also empathy, communication, trust, and respect. Outside the office, Dr. Rossis enjoys traveling, exploring different cultures, spending time with family, and continuing to expand his knowledge through professional education. He is excited to serve the Ithaca community and looks forward to welcoming patients with warmth, building lasting relationships, and helping individuals and families achieve healthy, confident smiles.