AboutUpland Cosmetic & Family Dentistry

Upland Cosmetic & Family Dentistry is an Upland based family dentist practice that treats patients of all ages. We are committed to delivering the highest quality dental care and do so using advanced dental equipment. We are a cosmetic dentist that offers services like checkups, teeth cleaning, crowns, veneers and more.

We also perform emergency dentist services that include bonding, root canals, crowns, and bridges. As a local dentist, we create lifelong relationships with our patients and their families and work to ensure that they receive treatments in a comfortable and relaxed environment. Dr. Cristina Petit, Dr. James Shunk, and Dr. Thanh Do and our staff invite you to schedule an appointment by calling 909-740-8297 and experience why our patients think Upland Cosmetic & Family Dentistry is the best dentist in Upland.

Our site allows you to get to meet our Doctors and Staff before your appointment so please take some time to go over our biographies. We do not want our patients to have any needless anxiety about their dental appointments.

We specialize in Cosmetic and Family Dentistry at practices in Laguna Niguel and Upland. Our team is dedicated to offering only the highest quality dental care available. To achieve this goal, our Doctors and Staff all participate in Continuing Education courses in the dental field. We are proud to offer the latest in dental technology in our practices.

We will fight to make sure that your Insurance providers give you the coverage you deserve. We are always available to answer your questions and eliminate your concerns. Our website offers information about some of the services we have available. To speak with one of our Patient Relation Specialists, please call us.

Dr. Shunk

Dr. James Shunk

Dr. James Shunk

Dr. Shunk became a Dentist after a short career in the field of Engineering. He completed his undergraduate education at the University of California where he received a Bachelors of Science in Physics. He then attended Southern Illinois University’s School of Dental Medicine where he earned his Doctorate in Dental Medicine.

Upon graduating, he stayed for one year at Southern Illinois University’s School of Dental Medicine to do research. During that time he published the article “In vitro and in vivo measurement of remaining dentin thickness.” Dr. Shunk provides high-quality dental care and focuses on cosmetic dentistry, root canal therapy, and implant procedures.

Dr. Thanh Do

Dr. Thanh Do

Dr. Thanh Do

Born and raised in southern California, he is a graduate of Upland High School, UC Irvine, and NYU College of Dentistry. He is pleased to join Dr. Shunk and Dr. Petit in providing smiles to his hometown of Upland and the surrounding foothill communities.

When not in the office, he loves to spend time with his young family and trying new foods. He also enjoys watching and playing a multitude of sports. He is an avid LA Lakers and San Francisco 49ers fan.

Dr. Petit

Dr. Cristina Petit

Dr. Cristina Petit

Dr. Petit has been practicing Cosmetic and Family Dentistry since 1991. She completed her Undergraduate studies at the University of California Irvine and received a Bachelors of Science degree in both Biology and Psychology. Upon graduating, she then went on to complete her education at Southern Illinois University where she received her Doctorate in Dental Medicine. She was involved in the fraternity Delta Sigma Delta , Δ Σ Δ which is also the oldest international Dental Fraternity, while at SIU’s School of Dental Medicine.

Dr. Petit has a passion for cosmetic dentistry and is continuously works on furthering her knowledge by attending continuing education courses. It is her goal to earn the confidence and trust of her patients because she truly appreciative them as individuals as well. Dr. Petit strives to deliver the best dental care possible and to achieve an aesthetically perfect final product for her patients. She is most proud of operating a small dental practice that enables her to focus on building real connections with her patients and helping them in any way possible.

Donette Bell

Registered Dental Hygienist

Donette Has been a dental hygienist for 28 years. She has been part of our team for 7 years. The thing she loves most about her job is developing patient relationships while educating them on how to improve and maintain a healthy smile. Its always her goal to make a patients’ dental visit as pleasant as possible.

Donette loves to be outdoors when she’s not cleaning teeth. You can find her most of the time working on her garden and yard or going on hiking trails with her beloved dogs. Donette is a proud grandma to 7 lovely children and enjoys family time most of all.

Myrna Aguilar

Dental Assistant

Myrna has been a very important member of our dental team for many years. She is usually the first to greet you with a big, warm friendly smile.

With her vast knowledge in the dental field she assists the doctors in providing the most pain free and comfortable care as possible. She helps keep the back office organized and likes to educate patients on how to keep a healthy smile.

Myrna is originally from Honduras but has lived in California for over 20 years. She loves her big family and is a proud parent of two. On her days off Myrna maintains an active lifestyle whether it be taking the Metrolink to Downtown LA or the local beach cities to meet up with friends and family for good food and laughs.