Sinclair Smiles
Marisela Sinclair, DDS:
Practice Profile Page


Sinclair Smiles
Marisela Sinclair, DDS
Encinitas, CA













A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Sleep apnea therapy

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 10:00 am to 7:00 pm

Tuesday: 9:00 am to 6:00 pm

Wednesday: 9:00 am to 6:00 pm

Thursday: 8:00 am to 5:00 pm

Friday: Closed

Saturday: Closed

Sunday: Closed





Check out what some of our happy patients are saying about us:

Scooter P. from San Francisco, CA (Source: Yelp)


I have been dealing with tension headaches and migraines for nearly 20 years, which is related to TMJ. I would routinely have 2-3 a week. I’ve done everything from changing my diet, exercise routines, sleeping more to no avail. Excedrin was my best friend up until about 5-6 weeks ago. After a few treatments Dr. Sinclair has found a “happy place” for my jaw to relax. I was initially skeptical about the treatment, and told myself that there is no way this will help. However, I have had one headache in those six weeks which was my fault for leaving the bite guard at home. Do yourself a favor, and give your organs a break from the meds, call Dr. Sinclair and ask her about how she has forever changed my life! 

Jared S. (Source: Google)


My family and I love Dr. Sinclair and her team! They are super nice and the office is clean and fresh. They are always so helpful and and answer all of my questions. My kids love them too. I highly recommend this office if you’re looking for a really good and caring dentist!

Yesenia Rivera (Source: Google)


Sinclair Smiles has been the best dentist office I have ever visited! Such a friendly and clean environment. Everyone in the office is very nice and helpful. I would highly recommend Dr. Sinclair to anyone!

Marjorie Rowland-Stine (Source: Facebook)


Just had my cleaning. I felt very safe as the have all the safeguards to keep patients and staff safe. They also let me try a new audio relaxation device. It seemed to work. The appointment seemed to go faster and the ultrasonic tool wasn’t unpleasant.

David D. from Encinitas, CA (Source: Yelp)


Who Likes a gentle dentist? Dr. Sinclair is the most gentle dentist ever and the entire staff and team goes above and beyond. I’m always well treated with respect and the best care. I am happy to strongly recommend for all your dental needs

Mack Mark (Source: Google)


A great staff willing to go the extra mile. They were even accepting emergency calls during CoVid. I recently had a cleaning and was very impressed with the amount of concern to the virus. They make going to the dentist enjoyable.

Deb Eatros (Source: Google)


What a great office! From the minute you walk in the office you feel welcome. Dr. Sinclair is so warm and caring. You always feel like her #1 priority when you are there. Highly recommend Sinclair Smiles for all your dental care!

Mark T. from Dallas, TX (Source: Yelp)


I recently started seeing Dr Sinclair and I have nothing but wonder and positive things to say. Has been one of the best experiences I’ve had in a dentists chair. Very accommodating, works with your schedule, friendly and polite staff. Even follows up after to see how you’re doing. Have already been recommending her to family and friends.

Anonymous (Source: Google)


Such a great experience! Dr. Sinclair, is incredibly detailed and knowledgeable about the art of dentistry and how to enhance the systemic relationship between oral and general health. I can’t say enough about Dr. Sinclair and her staff, 10 stars!

Elizabeth Peck (Source: Google)


Dr. Sinclair is wonderful and so is her team! She is a kind, patient, and honest dentist who listens and puts your well-being first. This is an exceptionally well run office with a very attentive staff. Highly recommend!!!

Matthew E. from Escondido, CA (Source: Yelp)


Nice and friendly staff! Dr. Sinclair really does a thorough job and is very kind. I would highly recommend her and her staff. I can say I will be going here more often than I was before at my previous dentist haha. Thank you!

Maliah Khan (Source: Google)


Dr. Sinclair is hands down the best! She is gentle and compassionate. She takes her time, explains everything and gives me options. I never feel like I’ve been “sold”. I continue to be amazed with how very friendly, helpful, efficient, and most of all how highly competent her staff is. I love the feel of this office. I can’t imagine finding a better, or more qualified, dentist. And in spite of living a fair distance from Encinitas, I nevertheless feel that Sinclair Smiles is WELL worth the trip.

 Jaclyn L. from Carlsbad, CA (Source: Yelp)


I’ve been a patient at this particular office for about 12 years. I started with the previous dentist, Dr. Isabel David and I adored her. I loved the very personal attention I got for the small office. When Dr. Sinclair took over, I was a bit hesitant. I honestly don’t love the whole teeth cleaning process (it’s gotten more uncomfortable as I’ve gotten older), but I am so happy to say that Dr. Sinclair is incredibly gentle and concerned with my comfort level. She has the sweetest smile and makes me feel at ease and well taken care of. She is carefully watching the issues I have in my mouth so I don’t have to worry! She knows i love my coffee, tea and wine and she always cleans up my stains so I can keep my smile look g great! I also like her office manager, Aimee. She knows me and is very sweet too. With the previous dentist she had so many new office managers over the years, I never felt like I got to know any of them. If you’re looking for a small dentist office with great personal attention, this is the place. I live 30 mins away and it’s worth the drive!

Javed Khan (Source: Google)


I hate going to the dentist!!! However, after my experience with Dr. Sinclair, I am looking forward to coming back for my smile makeover! I’ve wasted a lot of years with the smile I wasn’t proud of. Thank you Dr. Sinclair for helping bring out the best of me!

Allyson E. from Carlsbad, CA (Source: Yelp)


Dr. Sinclair and her team are what I have been looking for when searching for a dentist. They have a very clean and modern office. They are thorough and gentle. They listen when I have concerns and do not push treatments I am not sure about. I look forward to the dentist now!

Viet Nguyen (Source: Facebook)


Dr. Sinclair is a conscientious and compassionate dentist, with a wealth of experience and excellent rapport with patients both young and old. You can entrust her with providing you with excellent care for yourself and your entire family!

S. R. from Del Mar, CA (Source: Yelp)


Best Dentist in San Diego! I have never met a dentist with more passion and more heart than Dr. Sinclair. She is so caring and thorough with her patients. I have witnessed first hand her dedication and professionalism, give this office a try you will not be disappointed. Office is conveniently located in Encinitas, very clean office with cute decor. Staff is wonderful and welcoming.

 Darcy Newell (Source: Google)


I’ve been seeing Dr. Sinclair for my dental care for the past couple of years. She is kind, gentle and cares about her patients. I appreciate her recommendations about my dental care. She will suggest, but is never pushy. She and her team (Courtney & Amy) are the best! I highly recommend them. 🙂

Zakk Sharp (Source: Google)


Great office with an awesome staff. I am always greeted by name which is very impressive these days. They always seem so pleased to see me. I love the small time feel of their office. It always puts any anxiety I have about going to the dentist at ease! Thank you DR. Sinclair for all you do <3

Mark E. Floyd-Thaut (Source: Facebook)


I recently started seeing Dr Sinclair and I have nothing but wonder and positive things to say. Has been one of the best experiences I’ve had in a dentists chair. Very accommodating, works with your schedule, friendly and polite staff. Even follows up after to see how you’re doing. Have already been recommending her to family and friends.

Danny Lopez (Source: Google)


I had an excellent experience and I would highly recommend Sinclair Smiles. The staff is professional, courteous, and competent. I am 100% satisfied with the treatment I have received. Marisela Sinclair is a profound dentist and I am fully confident in her high quality of work. She can treat a wide variety of restorative, cosmetic, and general matters. Her dental assistance is very welcoming and gentle with patients. Sinclair office can accommodate you throughout the week and is very flexible. The Office Manager, Aimee will go out of her way in setting up your appointment. It is well worth the drive from Oceanside to Sinclair Smiles office. Thank you to Dentist Sinclair & her staff!

Rosalie Cantu (Source: Facebook)


Very knowledgeable dentist with gentle treatment plan and very understanding to patients needs. The assistant and the front desk secretary are very nice as well.

Megan Hawk (Source: Google)


Dr. Sinclair is the best!! She is friendly, professional and highly informative about dentistry. You can really tell she is passionate about her profession. The office is clean and very nice. I always feel so welcome by Aimee, her front desk. Anyone looking for a new dentist, you will not be disappointed with Dr. Sinclair and her staff.

Tania Kim (Source: Google)


Great dentist and staff! Explains all options clearly before treatment. Dr. Sinclair provides excellent care. Entire staff is friendly, warm and welcoming.

Joe G. from Los Angeles, CA (Source: Yelp)


I’ve been going to Dr. Sinclair over the past year on a referral from a friend and very much been pleased with her practice as a whole. She made sure that my comfort and questions were addressed. And the work she performed hasn’t given me any issues. Furthermore, the professionalism goes beyond just Dr. Sinclair but is also shared by her staff. The communication in scheduling was seamless. I plan to keep Dr. Sinclair as my dentist.

Christina M. (Source: Google)


Dr. Sinclair is the best dentist I’ve ever had! She’s gentle, thorough, and really takes time to care for my teeth and explain everything. Friendly staff, clean facility, and modern equipment. It was a great experience!

Monica F. (Source: Google)


Great experience! Our family of 5 was very pleased with the care received. Dr Sinclair and staff were friendly. Office is clean and you immediately feel comfortable and at ease. We highly recommend Dr Sinclair and will be going back for all our dental needs 🙂

Jared S. from Encinitas, CA (Source: Yelp)


The staff and Dr. Sinclair are awesome! The office is laid back and very clean. Dr. Sinclair is straight forward with what she can offer patients. The entire staff is very helpful and answered all of my questions. Dr. Sinclair and her staff are highly recommended!

Martha Juarez (Source: Google)


I was referred to Dr. Sinclair by a family member. Had a really bad tooth ache! I called her office and that same day she made time to see me. Definitely in case of emergency I know I can count on her! She’s amazing!

Mikhail Kook (Source: Google)


I was embarrassed to go to the dentist after being away for such a long time. I was scared to be honest. My teeth were chipped, stained and just outright in bad shape-I was afraid that she was going to have a lot of negative things to tell me. Dr. Sinclair took the time to go over my needed treatment in detail. She gave me a solid plan and I felt good about moving forward. Dr. Sinclair put me at ease. She was able to save several of my teeth that I thought were gonners. She has a gentle touch and a lot of patience. Her office understands everything about insurance and what my out-of-pocket cost were expected to be. No hidden surprises, which has built a lot of trust over the last year since I’ve been going here. Highly recommend!

Jessica S. from Carlsbad, CA (Source: Yelp)


Dr. Sinclair has been exactly what I need in a dentist. For the past couple of years, I had an issue with headaches, earaches, and tension in my jaw. I saw an ENT specialist with no luck. Come to find out I’ve been grinding my teeth at night and clenching my jaw. I had no idea it would cause ear aches and headaches! She was able to help me by ordering a night guard to stop the clenching. It’s been incredible to feel what a difference it has made in my jaw. No more headaches, my ears don’t hurt, and my jaw doesn’t hurt when I get up in the morning now. She is not only an amazing dentist for all my other needs, but for helping to diagnose something that my regular physician couldn’t!

CD. J. (Source: Google)


Dr. Sinclair’s office is clean, welcoming, bright and calming. It does not feel like an insurance billing factory. She and her staff are very informative and helpful and always looking out for the patients and very gentle with their approach. I had a bad experience with another dentist office after first moving to San Diego and since switching to Dr. Sinclair my oral hygiene is back on track with regular visits.

Kevin O'Connor (Source: Facebook)


Have always had a “dental-phobia” .This went away since I became a patient of Dr Sinclair. Explained all my options and the work she did was excellent. Would highly recommend Dr Sinclair

Casey Thurlow (Source: Google)


Most gentle dentist I’ve ever visited. I’m a person who is really afraid of seeing needles, and when I was having work done, I never even saw or felt the injection! Everyone who works there is super attentive and very respectful of any anxieties you might have, and always does their best to make sure you are comfortable at all times. Everyone is also very informed and will make sure you know what you are having done and what you will be paying for at the end of the visit. I’ve experienced some scary dentists in the past, and it was a big relief to have found Dr. Sinclair’s office. It helps knowing you won’t have to worry when you have to see a dentist, and being put in a calm setting when you get there really puts the nerves at ease. I will definitely be visiting the office again! Thank you!

Chelsea G. from Escondido, CA (Source: Yelp)


I’ve put off going to the dentist for two years due to anxiety but decided it was time. I went to a Dentist I received a flyer for in the mail and was quoted to need 13 filling and needed to pay major $$$. I told my Dad and he suggested a 2nd opinion from Dr. Sinclair in Encinitas. I made my appointment with ease as the admin staff was very friendly and helpful. Dr. Sinclair had already reviewed my x-rays from the previous dentist and took the time to show me on the screen which teeth needed fillings and explained why others didn’t. My filling count went from 13 to 8, which was a HUGE relief. Dr. Sinclair did an amazing job cleaning my teeth that day along with answering all my questions. I have since been back twice to complete the series of fillings and haven’t had anxiety in the slightest because Dr. Sinclair is so gentle. Sinclair Smiles is a clean, bright and modern office with very comfortable exam chairs. I’m so grateful to have found a Doctor that I can trust and feel so comfortable with. I highly recommend Sinclair Smiles!


The Sinclair Smiles team provides a classy, fresh, and fun dental experience in a relaxing and low-stress office. Dr. Sinclair provides general dental treatments including exams, dental hygiene cleanings, or preventative dental care, as well as cosmetic dental treatments including Invisalign, teeth whitening, Veneers, or laser dentistry in Encinitas, CA. Sinclair Smiles® is conveniently located on El Camino Real in Encinitas, CA You deserve a beautiful and healthy smile... we can help. Contact us today! Dr. Sinclair has been actively engaged in the dental industry since 2004. She began her career as a Registered Dental Assistant and had the privilege of assisting several top cosmetic dentists in the San Diego Region. Dr. Sinclair possesses a bachelors degree in Biological sciences from CAL State San Marcos and a Doctorate in Dental Surgery from University of the Pacific, Arthur A. Dugoni School of Dentistry in San Francisco, CA. She inducted as a member of the Tau Kappa Omega Honor Society. Dr. Sinclair is a certified Invisalign provider, a ZOOM teeth whitening provider, Veneer provider, and a certified soft-tissue laser dentistry provider.