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Making Healthy Smiles for the Whole Family

J. Jeffery



At Thorn Family Dental, Dr. Trevor Thorn and the team love helping our patients develop healthy, beautiful smiles. We serve children, adults, and seniors, and create custom treatment plans according to each person’s clinical needs and goals. Dr. Thorn focuses on preventive care and the most effective, minimally invasive procedures. This means a healthier smile for you, in a timely, comfortable, and affordable manner.


Ours is a practice that places you as our top priority. We want to get to know you personally, and learn about your life, family, and interests. This ensures we’re able to recommend the right care options for your situation. It also forges a bond, and we hope we’ll become your trusted dental healthcare partner, as well as your friends.

Some of the gentle dental care we offer includes:

Our office is located conveniently in Sonora, Ca. We serve Jamestown, Columbia, Soulsbyville, Tuolumne, Twain Harte, Angels Camp, Groveland, Arnold and Murphys, along with other nearby communities. To schedule your consultation, or one for your child, please call (209) 533.2444.

Dr. Thorn and our team look forward to welcoming you and your family to our practice. It will be our pleasure to start you on the path to optimal oral health and a confident, beautiful smile!

About Us


Routine Exams

Educating our patients is very important to the Dr. Thorn. Equipping you with the knowledge and practical skills to effectively remove plaque on a daily basis is the foundation for good oral health.

Dental Hygiene


Good oral hygiene is the foundation for good oral health. For those patients that have healthy gums and bone support for their teeth, a basic dental cleaning, or dental prophylaxis is indicated. For those that need more we have other options to help you achieve a healthier smile. 

Dental Fillings


We can confidently offer composite (to match your teeth) fillings which have many advantages over the old amalgam (silver fillings). One advantage is their ability to strengthen and bond the tooth together. Through careful technique these fillings can be strong and beautiful while lasting many years.

Crowns & Veneers

Changing the shape and appearance of your front teeth can drastically improve first impressions and boost confidence. Cracks, gapping teeth, mis-matched crowns and fillings can all be corrected with porcelain veneers. Veneers are conservative for the tooth and an amazing option for the smile you’ve always wanted.

Emergency Dentistry


We welcome all emergency patients, same day or early next day. We do not like to see people in pain, whether our current patient or just passing through the area. 

Teeth Whitening


In-office bleaching can produce a noticeable and sometimes dramatic result after 1 hour. Our bleaching system contains potassium nitrate and fluoride to reduce sensitivity and actually leave the tooth stronger then before. We also have at home options with bleaching trays.

Implants are versatile. If you are only missing one tooth, one implant plus one replacement tooth will do the trick. If you are missing several teeth in a row, a few strategically placed implants can support a permanent bridge (a set of replacement teeth). Similarly, if you have lost all of your teeth, a full bridge or full denture can be permanently fixed in your mouth with a strategic number of implants.



Dentures & Partial Dentures
Dentures are natural-looking replacement teeth that are removable. There are two types of dentures: full and partial. Full dentures are given to patients when all of the natural teeth have been removed. Partial dentures are attached to a metal frame that is connected to your natural teeth and are used to fill in where permanent teeth have been removed.
Sedation Dentistry
Allows your doctor to provide a variety of dental treatments safely and comfortably for patients who experience anxiety when visiting the dentist. Patients who have undergone a procedure using sedation dentistry will tell you it is a simple, relaxing way to experience dentistry.


Meet the Doctor


A Love for My Patients’ Healthy, Beautiful Smiles

As a dentist, I’m in a unique position to change people’s lives for the better, every day. Whether I’m restoring someone’s ability to chew properly and comfortably, moving them out of dental pain, or improving their smile, I’m increasing their quality of life.


As I’m working to improve their dental health, I’m getting to know each person. I love the stories they share and being included in their life. It’s a great feeling when a person opens up to me and lets me know about who they are beyond the dental chair: that level of trust is humbling.


My father was a dentist here in Sonora for almost 30 years. Hearing him speak about the work he did, and the relationships he built with his patients, helped me decide that dentistry was the right path for me. I have no doubt I made the right decision by following in his footsteps.

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Happy Patients


"I was very pleased with the staff at Thorn Family Dental! They were friendly and informative and made the experience a positive one. I will recommend them to family and friends!"

Jennifer W. 

Dr. Thorn and his assistant were personable and explained each procedure as they went along. They made sure I was comfortable at all times and the experience was painless. The staff has always been friendly and I appreciate them. I've been coming to the same dental facility for over forty years and through the changes during those times the integrity remains the same. Dr. Thorn even telephoned me personally to see how I was doing a few hours later. Thank you


Karen B. 

I am very grateful for the kindness and understanding shown me by Dr Thorn and his staff. I came in with a lot of pain and anxiety, and they were so patient. They showed me a lot of concern and respect. I really appreciate their help.

Elizabeth P. 

"My son broke a filling off at school and I called and they fit us into their schedule for the next day. They even accommodated  an after school appointment (4 pm). We hadn't seen a dentist in over 2 years but he saw us and fixed the broken filling on the spot (I was expecting to have to come back). The staff was super friendly and Dr. Thorn was great. My son is very nervous about shots but Dr. Thorn made the experience quick, calm and painless. My son was very happy. I highly recommend Dr. Thorn and have to family and friends."

Holly F. 

After being a patient of Charlene Chu for over 20 years, transitioning to a new dentist was a bit frightening. Dr. Chu was a perfectionist and I trusted her completely with my dental care. But YAY, along comes Dr. Thorn and he is caring and gentle and very professional while still being friendly and easy to communicate with. He and his wonderful staff (Stephanie is a rock star of a dental assistant!) took very good care of me. The removal and replacement of an old crown was painless and during the procedure, they described what they were doing to me every step of the way. I am so happy to be a patient of Dr. Thorn and his exceptional staff!

Francesca S.

Dr. Thorn is an amazing dentist. Always considerate, kind and gentle. He is great with my kids (2&5 years old) and I enjoy the culture he has created in his office.


Ambur P.

"I have seen several dentists over the years, and my dental care has been a patchwork of good and bad providers. Dr. Thorn and his staff are some of the most professional, pleasant, and genuine I have experienced. They worked quickly and efficiently to solve my dental issues within my budget!"

James P. 

Everything about my visit was exceptional. The Thorn family team is professional and pleasant to be a around. I "almost" wish I had more cavities just so I could hang out with you guys a little more often. But of course, your exceptional dental care has worked against me in that regard. ;-) Not a cavity in sight! Thank you for a great experience, for communicating so clearly that you care, and for creating an atmosphere of joy that really is a big part of who you are as a team.

Daniel P.

Dr. Thorn is so efficient, gentle and so kind! He has a great staff that is helpful and friendly. It is always a pleasure for me to go see my dentist! I also feel so special when Dr. Thorn himself calls me in the evening after my dental procedure to see how I am doing!

Carla V. 


Our Address:

12656 Sylva Lane

Sonora, CA 95370

  Tel: 209.533.2444

Office Hours:

Monday                            8:00AM–5PM

Tuesday                            8:00AM-5PM

Wednesday                      7:30AM-5PM

Thursday                          8:00AM-5PM

Friday (2nd Fri of month)       8:00AM–5PM


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