For 25 years, Dr. Roshangar has been practicing state-of-the-art dentistry with a commitment to providing the highest standard of care.

   Dr. Roshangar received Bachelor of Science in Biology from UCLA, in 1988, and Doctor of Dental Surgery from Case Western Reserve University School of Dental Medicine, in 1992. She completed post-doctoral training in Advanced General Dentistry at UCLA.

   Dr. Roshangar has built a reputation based on uncompromising clinical excellence, meticulous attention to detail, and a warm, gentle demeanor. She has devoted her career to developing a practice which combines art, science, and technology with personalized care.

   Dr. Roshangar has been honored with a recognition by Orange Coast Magazine in its selection of "2014 Top Dentists in Orange County" and "2015 Top Dentists in Orange County" and appeared in the March 2014 and March 2015 issues. She also received recognition by the National Consumer Advisory Board as America's Best Dentists 2016.

   Dr. Roshangar lives in Orange, with her husband, and volunteers her time and services at Lestonnac Free Clinic, a non-profit, primarily volunteer organization which provides, free, comprehensive care to low and no-income families in Orange County.



Dr. Roshangar provided exceptional care when I came to her for a second opinion.

Dr. Roshangar recommended onlays instead of crowns for two posterior teeth that were cracked. Not only did it save me money but it preserved the teeth! Great communication and pain free dentistry, what more could you ask for. She also volunteers at local clinics which is great for the community.

BS - GivingSmiles125 | Kerr



My wife and I have been coming to Dr. Roshangar for several years. I remember my wife's first visit. When she was done with her treatment she said "she is so gentle!". I laughed and told my wife to look at the business card in her hand. The tag line on the card said "The Gentle Dentist". It was truth in advertising! We knew then that we had found the right dentist for us. We have bragged about Dr. Roshangars' skills to others and now my father is also a client. She is a gifted practitioner as well as a kind individual with a caring demeanor. We would highly recommend her to anyone.

DQ - Diamond Bar



Dr. Roshangar moved off of Chapman and Pine. The new office is awesome! Everything is very new and modern. Really looks great. Much more open feeling. Plenty of parking and easy to find.
She even has new chairs that give you a light massage while you are getting your teeth cleaned or whatever procedure you may be there for. The X-ray machine is hidden away in a cabinet, that you would never think it would fit it. 
Not only that, she has a new assistant that is seriously the best one yet. I had to get x-rays done and she was the only one that didnt have to retake x-rays because they werent right the first time. 
Ive always liked coming to Dr. Roshangar, but now I do even more! She always seems to remember what you talked about the last time you visited. Really makes you feel at ease. I highly recommend her!

LN - Anaheim



Very friendly, quick and gentle. Would highly recommend!

JM - Diamond Bar


I hate the dentist and hadn't been for years! Dr. Roshangar is super gentle and not at all scary.  Her office is easy to find and is really clean and modern.  There is no waiting and she is always on time.  Her staff is wonderful and very accommodating.

KA - Orange



Most pleasant experience ever with a Dental Office. The professional staff is very polite and caring.
I hadn't been to the dentist in 5 years or so; it was most certainly time for a cleaning and check up. I had 7 new cavities, and several old silver fillings I wanted removed and composites put in. We were able to accomplish all of that in two 1 hour visits.
Excellent state of the art equipment. Gentle touch. Couldn't be happier with Dr. Marjan Roshangar.
I also did the Zoom whitening here as well; fair price and improved my teeth by 9 shades. Brand new smile!
Such a great experience that I will look forward to my next general cleaning and check up.

JT - Orange



Dr Roshangar is a phenomenal dentist and I hate going to dentist lol.
She is comfortable and caring.  Her office off of Chapman is amazing. 
I have been going to her since 2006. I live in HB now and still go over to her with kids.  They love her as well....

EB - Huntington Beach



I have gone to Dr. Roshangar for two years, and she has always been conservative in her treatment plan and also very thorough in her exams.  She even called my insurance when I was unsure if I had coverage, and we created a plan that would minimize my personal contribution.  She is truly a class act.  I am very selective about my dentists, and usually only see dentists affiliated with major universities such as UCLA or USC, so I was apprehensive about the change to a private dentist.  Dr. Roshangar came highly recommended from a family I knew from USC, and she has not disappointed.  Her rates are reasonable and she is very talented.

SJ - Mission Viejo