Office open, Costa Mesa, CA

Your safety is our #1 concern,

For your upcoming appointment, please be prepared to answer the following screening questions when you arrive.

if you answer yes to any question or have a concern, please contact office asap.

any of these symptoms in past 14 days:
  • Do you have a fever?
  • Experiencing shortness of breath?
  • Do you have a cough?
  • Do you have a runny nose?
  • Lose of taste or smell?
  • Do you have a sore throat?
  • Any GI/digestive issues?
  • Any Chills?
  • Muscle pain?
  • Headache?
  • Have you been in contact with someone who has tested positive for Covid-19?
  • Have you been tested for virus or antibody?
  • Have you traveled more than a 100 miles?
**IMPORTANT, if you have had Covid19, we require a negative test or you must wait 6 weeks from the initial onset of your symptoms. Please call with any questions or concerns.

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Your team at Smiles4oc
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Dr. Christina T Do at SMILES4OC, Costa Mesa

SMILE4OC Dr.Christina Do Dr. Christina T. Do
Dr. Christina Do is a graduate of Loma Linda University School of Dentistry. She is a native Californian, born and raised in the “OC.” Throughout her dental career she has had the honor of practicing with some of the leading laser professionals in the world. Her perseverance in mastering dental laser technology gives her the opportunity to lecture worldwide to other dentists on the applications of laser dentistry. She is a lecturer and researcher for the leading dental laser company, Biolase. She is also on the executive board of the Coleman Research Group which connects medical investors with experts in the field of dentistry.

Dentistry has been a passion of Dr. Do since her college days at UCSD. She was inspired by a homeless woman who had no access to dental care. From that point forward, Dr. Do knew that she had a calling to perform dentistry to the under privileged in her community and to citizens of other countries. Since 2000, she has served in various countries including Mexico, Peru, Bolivia, Guatemala, Honduras, Papua New Guinea, and Haiti.

Dr. Do has created her own animated children’s educational DVD. Her “Toothtales” DVD has received numerous accolades and now has 3 episodes and counting. Dr. Do has been featured numerous times on the Emmy award winning show “The Doctors” performing various dental procedures. Currently, she has dental commercials on air and hopes to continue to reach out to the community through various media aspects. Her exceptional skills in laser dentistry has her featured on PBS American Health Journal, laser educational videos, published journal articles, multiple dental magazines, and actively sought out for dental treatments by patients. Dr. Do is an active member of the ADA, CDA, OCDS, WCLI, and the AAPD.

In her spare time, Dr. Do enjoys spending time with family and friends, hiking, exercising, and arts and crafts. She tops off her life’s joy by spoiling her dog Daisy, and doing whatever it takes to someday see her on the cover of Pet Monthly.

Patient testimonials

This was my first visit to the dentist. I was very nervous. When I got there the staff was very friendly and made me feel very comfortable. I saw Dr. Do she was very nice and made me feel so comfortable. When everything was over I left the office very excited and looking forward to my next visit. Aubrianna V.

Kids Reviews tabKids testimonials

I love coming to Smiles4OC. Everyone is amazing and I love going into the treasure box for being a good patient!! Dr. Christina and team help me with making my teeth healthy and beautiful. Love you all! Mila (Age 4)

I love coming to Smiles4OC. I like going to the dentist because Dr. Do checks my teeth and makes sure my teeth won’t get rotten. Jake (Age 6)

I love going to the dentist because they clean my teeth so nice and it feels so good afterward. Also, Dr. Do fixed my chipped tooth! Tori (Age 10)
Dr. Rolfes Published Magazines

What our patients say

Google Review
My formerly crooked teeth are straight now, thanks to Dr. Do and Invisalign. I’m very happy with the results. Originally posted on
Google Reviews
More Patients Stories

Did you know that you can now share the experience you had with us via an audio testimonial?

Call this toll-free number (855) 980 2503 and record your audio review now!

Recording an audio review is as easy as making a phone call!

Happy Patients Gallery

Happy women patient with Dr. Cary J. Dunne and Smiles4oc staff members, SMILES4OC - Costa Mesa, CA
Dental Education Videos

Dental educational Videos

Dr.Thomas J.Rolfes, Smiles4OC Dr.Christina T.Do, Smiles4OC Dr.Cary J.Dunne, Smiles4OC

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WCLI Institute Academy of General Dentistry California Dental Association ADA Orange County Dental Society Orange County Dental Society American Academy of Pediatric Dentistry American Dental Association An Association Dedicated To Dental Office Management Spear Education

Brands Used

WCLI Institute Academy of General Dentistry California Dental Association ADA Orange County Dental Society Spear Education