Advanced Dental Group of Los Alamitos
Dalia Niknam, DDS:
Practice Profile Page

Advanced Dental Group of Los Alamitos
Dalia Niknam, DDS
Los Alamitos, CA







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

Dental cleaning

White fillings


Inlays & onlays



Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

Pediatric dental care

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 10:00 am to 6:00 pm

Tuesday: 10:00 am to 6:00 pm

Wednesday: 10:00 am to 6:00 pm

Thursday: 10:00 am to 6:00 pm

Friday: 10:00 am to 4:00 pm

Saturday: Closed

Sunday: By appointment only





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

Heather Kies (Source: Google)


My son started coming here last year and has had nothing but good experiences with the Dr’s and staff. Dr. Dalia Niknam is always very kind and takes the time to explain to Alex (my 8-year-old) what he will be doing with great patience. They are very knowledgeable and genuinely care for their patients, especially children. I recommend them to anyone looking for a nice place to take their children!

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Kimmie S. from Los Alamitos, CA (Source: Yelp)


I would recommend Dr. Niknam to anyone searching for a dentist. How kind she treats me and how much she cares about my teeth is flattering.  If you are looking for a friendly and outstanding service, this is the place for you!

Gary Simon (Source: Google)


Top-notch – highly recommend them! They are up on the latest dental procedures and technology. Always a big hello from the staff when you visit. They are pretty good about staying on time with appointments and squeezing you in if you have an emergency. My whole family has been going to them for 10 years. Five stars for sure!

Anonymous (Source: Google)


I have been a patient for over 4 years now, and it just hit me how much I truly and utterly enjoy coming in for my dental cleaning. Actually, not only my dental cleaning, but I have trusted Dr. Niknam with all sorts of dental appliances ranging from “Jaw correctors to now Invisalign. This is truly the best. Dr. Niknam is adorable, attentive, and does the cleaning herself. (So unheard of for the dentist herself to clean your teeth. I love this practice!!

Arash H. from Irvine, CA (Source: Yelp)


My son and I have been going there for 3 years. this is by far the friendliest and most experienced dentist we have seen. she explains everything perfectly to us before we start, and she always has a smile on her face.

Kevin J. from Huntington Beach, CA (Source: Yelp)

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Dr. Niknam is the best dentist I have ever been to in my life. She has amazing attention to detail and is helping me to have the best dental health and appearance of my life. Both she and her entire staff are very courteous and always smiling when you walk through their door. The dental care you get is first class and with no pain or real discomfort. I still have many more visits to fix my crooked teeth and jaw and look forward to each and every visit. I highly recommend Dr. Niknam and the team at ADG for your dental needs.

Brigitte Barrios (Source: Google)


My husband & I travel pretty far to see Dr. Nikman & (partner dentist) even though there are many dental offices only minutes from my house. It is truly worth the drive for these outstanding Dentists. They are professional, and really care about our health. I am so grateful to be their patient.

Hooman Yeroushalmi (Source: Google)


Let’s start with the staff. They are extremely friendly and get everything done quickly. The technicians are very nice and do their jobs well. Drs. are great and friendly. They do their jobs extremely well and pay a lot of attention and take care of the issues quickly. Dr. Niknam is very good with cosmetics. I recommend them to everyone and will take my kids there soon.

Miguel C. from Artesia, CA (Source: Yelp)


We were referred here by a relative and we are very satisfied with the service that they offer here. The place is very clean, they have a very friendly staff, and the dentists are very knowledgeable. My wife and I are very happy with Advanced dental group and we highly recommend them to anyone looking for a new dentist.

JoAnn Buday (Source: Google)


No one likes going to the dentist but since we have to, it should be a good experience. My experience with Dr Niknam and her office staff was great. They are very nice, calming and caring. I had two appointments, deep cleaning and some repairs to a few teeth. My fault I have put off this visit way too long (…). I really got lucky when I picked her office. I will be going back, with or without insurance. I told them I will be recommending them as well.

Christine L. from Corona, CA (Source: Yelp)


In all my years of dental care visits none have been as painLESS of an experience as the one I had with Dr. Niknam. She knows her stuff when it comes to perfecting one’s smile, that’s for sure! She had me in & out of my appointment very quickly, and I didn’t feel as though she was trying to rush what she was doing either. I feel like she takes great pride in her work and why my teeth have never felt better!. Oh and did I mention how painLESS it was!?? I was SO happy knowing I had finally found a dentist I won’t dread seeing ever again. If this helps any, my appointment with Dr. Niknam wasn’t just your standard routine cleaning either. That’s how AWESOME she really is.

Ethan Haik (Source: Google)


Dr Niknam is amazing. Would absolutely recommend! They helped me with my implant and cleaning and were extremely thorough and family orientation. Such a wonderful place

Stacey V. from Cypress, CA (Source: Yelp)


This is by far the best place ever! Very friendly staff and the dentist makes u feel comfortable and is funny! Ortho is amazing and very informative and works well with kids! Front desk staff is so sweet and they all know me and my family by name. They always welcome you and give tons of free samples ( toothpaste, toothbrush, floss, and the best mini chapsticks ever). Awesome family dentist/ ortho!

Arash Bakhaj (Source: Facebook)


I highly recommend Advanced Dental Group, They very professional and caring which makes your office visit so comfortable..Highly recommended.

Bree Turner (Source: Google)


This is my second time going and I cannot express to you how much I love this office. Dr. Dalia is excellent and wonderful. They numb your gums and to tell you the truth I didn’t even feel the shot she gave me. She has the softest hand and I like it when she works on my teeth and tells me the honest truth. I’m so glad I found this office. You guys won’t be disappointed.

Joelle A. from Los Alamitos, CA (Source: Yelp)

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My daughter Nikki has been a patient for about 5 years for dental & ortho.  She got her braces off yesterday & her teeth look beautiful!!! So worth the money & time! The whole staff is so nice to her every time she comes in!! I totally recommend this place especially for braces YOU WON’T BE DISAPPOINTED !!!!

Loila Nadira Jaikaran (Source: Facebook)


The warmest, kindest, friendliest team of professionals. Our experience has been nothing short of superb. Recommend to all in need of dental work. With sincere appreciation…thank you for all you do

Laura L. from San Diego, CA (Source: Yelp)


I love Dr. Niknam! she is very friendly and flexible! I’ve been seeing her every month for about two years (I have braces). She is very meticulous about her work and very professional. The facility is clean and comfortable. I would definitely recommend her!

Seyoon Rhee (Source: Google)


After years of struggling with breathing/TMJ/Ear problems, I finally see the light. When I was a child, I was fortunate enough to have braces, but the orthodontist at the time extracted 2 of my premolars. Since then, I’ve had countless infections, sleepless nights, and TMJ issues that wouldn’t resolve. But now I see hope after meeting with Dr. Niknam. She was caring, understanding, and didn’t rush to give me a diagnosis, but was more so willing to work it out together with me. I can’t thank her enough for knowledge/wisdom/understanding. Thank you thank you thank you!

Ava Y. from Cerritos, CA (Source: Yelp)


I have been a patient for three years now & I have to say this is the most welcoming & kind dentist office I’ve been to and they also get the work done comfortably and without error. I was terrified of the dentist when I first starting coming and now I walk in excited. They explain everything in great detail before they begin and give you options on what’s best for you personally.
Highly recommend this dentist to anyone in the Orange County & surrounding areas.

Gus Lemus (Source: Google)


Everyone at Advanced Dental Group is great starting from the front desk to the chair, Dr. Dalia is the best!!! She is professional and knowledgeable on her craft, I recommend Advanced Dental for your family and friends.

Claudia M. from Long Beach, CA (Source: Yelp)


My experience with Dr. Dalia Niknam and her husband was truly amazing. The level of care and compassion for patients is outstanding!  Both Doctors absolutely provide service because of their passion for dentistry and for making people smile!!  My daughter was so happy with the results from her braces also. I highly recommend this practice for anyone who wants the very best!

Fabiana Frasca (Source: Google)


Our whole family has been going to Advanced Dental Group for about 10 years and we are so happy with our dental treatments. The staff is extremely friendly and helpful and (partner dentist) and Dr. Niknam are wonderful!! I highly recommend this dental office.

Margo M. from Long Beach, CA (Source: Yelp)


Going to the dentist isn’t something many people look forward to, but with Dr. Niknam, there’s little to worry about. She thoroughly explains what she’ll be doing beforehand, and when she’s working on your mouth, you barely notice. Dr. Niknam has a very gentle touch and obviously knows what she’s doing. And she and the assistant work together so harmoniously, it’s almost like ballet.

Brenda M. from Hawthorne, CA (Source: Yelp)


My friend referred me to this beautiful office and I’m so glad she did. This is the best dentist I have ever been too. They have the nicest staff and the best dentist’s. Dr. Dalia is the most amazing dentist I ever been too. They have high tech tools and their office is so comfortable and clean. She told me exactly what I needed and told me some of the stuff wasn’t covered and gave me an excellent price. She did my cleaning and it didn’t even hurt and I was there less than an hour and was able to schedule my appt right after. You have to check this office out trust me you won’t regret it

Dulce Gamez (Source: Google)

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I love this dental group. My whole family comes here because they are very professional, friendly and best of all very honest. We feel very comfortable with all the staff ♥️

Kyley Gidley (Source: Google)

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Amazing job with my 10-year-old son previously terrified of the dentist. They not only took great care of my youngest but now will be taking care of our whole family of 5. Great office, kind people.

Jessica R. from Long Beach, CA (Source: Yelp)


I have been a patient for over 4 years now, and it just hit me how much I truly and utterly enjoy coming in for my dental cleaning. Actually, not only my dental cleaning, but I have trusted Dr. Niknam with all sorts of dental appliances ranging from “Jaw correctors to now Invisalign. This is truly the best. Dr. Niknam is adorable, attentive, and does the cleaning herself. (So unheard of for the dentist herself to clean your teeth. I love this practice!!


At Advanced Dental Group you will find a team of professionals that are dedicated to providing top-quality dental care in a friendly, comfortable, caring environment. Dalia Niknam DDS, a 1991 graduate of National University School of Dentistry, founded the dental practice with her husband, Bijan Eshagh Zadeh DDS, a 1987 graduate of National University School of Dentistry, in their hometown shortly after graduating dental school. Bijan Eshagh Zadeh DDS continued to receive his Oral and Maxillofacial Surgery license in 1991 in his hometown. They relocated their practice to its present location on Katella Ave in Los Alamitos in 2005. Dalia Niknam DDS and Bijan Eshagh Zadeh DDS have both been practicing dentistry for 20+ years.

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