Dr. Trieu TonDr. Trieu Ton
Dr. Nisha MahajanDr. Nisha Mahajan

6471 Lone Tree Way, Suite 301

Brentwood CA 94513


About Arbor Dental

At Arbor Dental, we strive to make every visit feel like you are catching up with an old friend. We believe in the importance of communication, and listening to your needs is the first step to ensuring your dental concerns are met. Our friendly staff provides the highest quality of dental care and services without sacrificing your comfort. Using the most up-to-date technology in combination with compassion and empathy, a visit to the dentist has never been more enjoyable.

We offer an extensive list of services guaranteed to satisfy all your dental needs. Whether it is cosmetic dentistry or emergency dentistry you need, Arbor Dental has you covered. We will make every effort to help you achieve the brightest, whitest smile. Not only can we do it all, but we do it all in one location as the most convenient option for you and your family.

At Arbor Dental, we are proud to offer our patients in Brentwood, Antioch, Bridgehead, Knightsen, Oakley, Discovery Bay and the surrounding communities the highest level of care in the most comfortable and conservative of settings. By accepting insurance as well as payment plans for the uninsured, we guarantee you’ll receive nothing but the best from our office. Regardless of your dentistry needs, we can meet them all so contact our office today.

Start exploring the services we offer, and together, we will satisfy all your dental needs.

Meet the Team

Dr. Trieu Ton

Graduated from UC San Francisco, School of Dentistry. He is an active member of International Association of Orthodontics, American Academy of Implant Dentistry, and American Academy of Cosmetic Dentistry. Dr. Ton enjoys hiking, spending time with his family and playing tennis.

Dr. Nisha Mahajan

I was born and raised in Calgary, Canada and have lived around the world and practiced for many years in my hometown. I moved to the Bay Area in 2017 and got married in May 2019 to my husband Raj, who is a Bay Area native. I am very excited to now call San Francisco my new home. My passions are traveling, cooking and CrossFit.

I studied at the State University of New York, Buffalo where I earned my Doctor of Dental Surgery (DDS). Post dental school I joined a General Practice Residency at St. Francis Hospital in Hartford, CT. The focus of the program was caring for handicapped and medically compromised patients, oral surgery, and preventative care. With my understanding of the connection between oral health care and overall well-being, I strive to positively impact the lives of every patient I have the pleasure of treating. I have added pediatric sedation to my expertise and really enjoy working with young patients. Many of them would be unable to receive the much needed dental work they require, and helping them is such a rewarding experience.

Moving to California and becoming has been such a valuable experience. The clinic has opened many doors and opportunities for me, and exposed me to the latest advances in dental technology. I enjoy discussing oral hygiene methods and step by step procedures with clients. I understand that many people have a dental phobia and it is my goal to make you feel comfortable and heard.

Giving back to the community and less fortunate is very important to me. I have traveled to the Dominican Republic for outreach and to Cambodia to volunteer my time and skills. Through volunteer work, I am able to alleviate those in pain and help people in need of dental care. I hope to continue this throughout my career. I enjoy getting to know my patients and forming life long relationships. Drop in or give us a call and we would be happy to help you.

ADA – American Dental Association

CDA – California Dental Association

DOCS– Dental Organization for Pediatric Conscious Sedation

SPEARS Study Club


Insurance Coordinator

I enjoy being a part of our team because not only do we provide patients with a great smile, but also improve their self confidence. On my free time, I like to find new hiking and running trails, where I see different terrains and indulge in the amazing views. I also like to work on various art projects and teach my rabbit new tricks.



What excites me the most about dentistry is making other people feel confident about their smiles. I love working at Arbor Family Dental because we really focus on comfort and quality care. I enjoy working with Dr. Ton and the team because together we make it all happen by providing the best dental experience possible. Our office welcomes patients with big smiles and many amenities to make them feel “at home”. I feel very fortunate to be part of such an amazing team! When I’m not working, I enjoy traveling with my older sister, spending time with my family, and going to the beach.



Sonya has over 4 years of dental hygiene experience. She is energetic, hardworking and detail oriented. With her friendliness and thoroughness, she is committed to providing great dental care with a happy smile.


Office Manager

Senta has over 3 years of dental experience along with over 10 years of managerial experience. She have worked with major businesses such as Starbucks Coffee, Blue Cross Blue Shield and Sports Authority. With her knowledge and expertise, she is able to translate great services into the dental field. Her organization and detail oriented mindset, Senta can deliver thoroughness and peace of mind for our patients.


Patient Coordinator

With over 10 years of dental experience, Albert earned an associate degree at Laney College. He has experience as executive assistant, office manager, and administrative assistant in the dental field. He is eager to utilize his expertise to deliver the best care to our patients.


Dental Assistant

I graduated from Horizon College. Being a Dental Assistant allows me to have so many rewarding moments but by far my favorite is being a part of giving someone back their smile. I like to spend my time with my family and fiends, watching movies and go shopping.


Dental Assistant

Justine has over 4 years of dental experience with knowledge and expertise in Implant Dentistry, Orthodontics, and Root Canals. Being personable and friendly, Justine is able to keep our patients comfortable and engaged during their dental experience. She is a true team player and helps out the staff when needed. Justine is also creative and assists us with our Instagram. So when you get the chance, follow our Instagram page #ArborFamilyDental.


Dental Assistant

With over 3 years in the customer service industry, Noland has the knowledge and experience in taking good care of our patients. He graduated from Carrington College and seeks a modern dental office to work in that matches his inner goals and values.


  • Dr. Ton is a very professional and energetic young Dentist. My family sees him for regular checkups, I was in a motorcycle accident and lost my two front teeth. Dr. Ton recommended the best option for replacement, was always courteous and respectful and made sure I was comfortable every step of the way. I love my new teeth and they look better than my originals. I would definitely recommend his services to all my friends and family.

    Rigo L
  • Dr. Ton is a committed professional through and through and will go above and beyond to not only take care of the needs of his patients, but to ensure that they are carefully educated in their oral health. He is the industry expert on patient preventative dental hygiene and care and ensuring the patient is as comfortable as possible. He took care of my personal needs for a oral appliance (I have severe bruxism and grind my teeth at night). Dr. Ton and his staff were stellar in all regards. Couldn’t recommend him more.

    Ray Y

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