We've Moved! Come visit us at our new location:


17762 Beach Blvd Ste 210
Huntington Beach, CA 92647

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Quality Care from a Cosmetic Dentist You Can Trust

Get to Know Our Practice

Andrew G. Mortensen, DDS  A Dentist Giving Fountain Valley a Reason to Smile

Welcome to the office of Andrew G. Mortensen, DDS! Our dentist, Dr. Mortensen, has proudly served Costa Mesa, Huntington Beach, Fountain Valley, CA, and the greater Orange County area for decades. At our dental practice, we emphasize cosmetic dentistry and are dedicated to designing dazzling, healthy smiles for our patients. We combine state-of-the-art technology, modern materials, and expertise to improve your smile easily, comfortably, and often, permanently. You'll be amazed at what our dentist can do.

Whether you are a new patient in need of a subtle change or a full smile makeover, Dr. Mortensen can provide aesthetically pleasing solutions that contribute to strong oral health.

The team at Andrew G. Mortensen, DDS
Our team of compassionate dental professionals

Welcome to Our Practice

As a Las Vegas Institute-trained dentist with an accreditation from the American Academy of Cosmetic Dentistry, you can trust Dr. Mortensen to provide superlative care and beautiful results. With more than 40 years of experience to call upon, he can handle all of your needs.

Transformative Results With Dental Veneers

before veneers
After veneers

Meet Dr. Mortensen Excellence in Dentistry

A talented and skilled dentist, Andrew G. Mortensen, DDS, has been creating beautiful smiles in Huntington Beach, Fountain Valley, CA, and greater Orange County for more than 40 years. As your dentist, he can develop a personalized treatment plan to enable you to reach your cosmetic goals while optimizing your health. Dr. Mortensen is an accredited member of several renowned organizations, including:

  • American Academy of Cosmetic Dentistry
  • American Dental Association
  • California Dental Association
  • Orange County Dental Society

He also trained at the Las Vegas Institute, which is widely recognized as one of the very best programs in the industry. This unique background allows Dr. Mortensen to offer the most advanced techniques and treatment plans available in modern dentistry.

Dr. Mortensen receiving an award.
Dr. Mortensen is an award-winning dentist

Awards and Recognitions

AAD Accredited Member logo
ADA logo
ICOI logo
LVI Trained logo
Best Dentist Orange County (2010) logo
Opencare Patientsʼ Choice Winner (2015) logo
DOCS logo

Compassionate Care for All of Your Dental Needs

Dr. Mortensen is proud to offer a wide array of general and cosmetic procedures, including porcelain veneers, teeth whitening, dental bonding, and TMJ disorder treatment. Our team understands that not everyone looks forward to a visit to the dentist, so we can calm your fears and help you relax during your treatment thanks to sedation dentistry. This allows us to provide a full range of restorative procedures with virtually no pain. In addition, our Fountain Valley, CA, office (just up the road from Huntington Beach) features all the latest dental technology that makes visits to the dentist easier and more relaxing. 

Whether you simply need a set of x-rays or a full mouth restoration, we can help. Our dentist serves the friendly communities of Huntington Beach, Fountain Valley, and the greater Orange County area. Regardless of your oral health needs, Dr. Mortensen's practice is a premier source for cosmetic, implant, sedation, and general dentistry.

Your oral health and the state of your smile is of the utmost importance to us. Schedule a consultation or appointment today by contacting us online or call:

(714) 964-4183

Andrew G. Mortensen, DDS
We can transform your smile!


"Dr. Mortensen, Has been my doctor since I was a teenager. He has been so wonderful and continues to be the best dentist. I trust his judgment, knowledge, and ability to make experience a wonderful service. All of his staff is amazing- kind, friendly, knowledgeable, and caring. It will be a such a difficult to replace such a wonderful team. Thank you all for all you do to make smile’s beautiful. " Review from WebMD

Featured Procedures


Imperfections on your teeth such as cracks, chips, and stubborn discoloration that does not respond to professional whitening treatments can give your smile an unhealthy appearance. Crafted of advanced dental ceramics that mimic the light-reflecting properties of natural tooth enamel, porcelain veneers offer a versatile, durable, and easy to maintain option to maximize the appearance of your smile. Veneers also provide the advantage of incredible results on a significantly reduced timeline, especially when compared to other cosmetic dentistry options.

Learn More about Veneers

Dental Implants

When you lose a tooth, the lack of dental roots causes your jawbone to begin deteriorating. As this atrophy progresses, it can cause the surrounding teeth to shift which in turn, can affect your appearance and lead to further tooth loss. Implants are the only treatment in modern dentistry that can stop jaw bone atrophy. The titanium posts act like bionic tooth roots, effectively ending further atrophy while providing unparalleled support for a crown, bridge, or denture. Restore the form and function to your smile and rejuvenate your oral health with this advanced treatment.

Learn More about Dental Implants

Sedation Dentistry

Our team knows that a visit to the dentist can cause feelings of anxiety, but putting off much-needed treatment can make a minor issue become a significant oral health problem. We understand that some patients may feel too uneasy to sit through dental treatment, so we offer a variety of sedation options to help you relax, including oral conscious sedation. If you are afraid of the dentist, Dr. Mortensen and his staff in Fountain Valley, CA, will make every effort to put you at ease and ensure you are calm throughout your visit. We are here to help provide you with a healthy smile.

Learn More about Sedation Dentistry

Full Mouth Reconstruction

Patients who have put off important treatment for years may think there is little that can be done to restore their oral health, but Dr. Mortensen can provide nearly anyone with a picture-perfect smile. At our cosmetic dentistry office, Dr. Mortensen can design a custom treatment plan involving multiple procedures to meet your unique needs. During your initial consultation, our dentist will review your oral health and provide you with a number of options to achieve the results you desire. Thanks to full mouth reconstructions, we have the potential to change your life for the better.

Learn More about Full Mouth Reconstruction

Cosmetic Dentistry

Patients often cite the appearance of their teeth and gums as a source of self-consciousness. Fortunately, Dr. Mortensen can provide you with custom cosmetic dentistry treatment at our Fountain Valley office. Cosmetic dentistry focuses on enhancing the appearance of your teeth and gums through treatments like veneers, teeth whitening, and more. For patients with multiple cosmetic concerns, Dr. Mortensen can perform a smile makeover to enhance multiple aspects of your smile in one treatment.

Learn More about Cosmetic Dentistry

Dental Crowns

Decayed, damaged, or broken teeth can be painful, making chewing and speaking difficult. A compromised smile can also cause feelings of self-consciousness. Crafted from advanced ceramic engineered to withstand normal biting forces while providing natural-looking results, crowns are custom-designed based on the unique needs and appearance of your smile. A crown placed over an affected tooth following treatment for trauma or decay can protect it from further damage. By restoring a tooth with a crown, you can often avoid the need for extraction. With proper care, these restorations can last for years.

Learn More about Dental Crowns

TMJ Disorder Treatment

Temporomandibular joint disorder (TMD) can be painful and lead to tooth damage as well as headaches. Using advanced technology, such as digital X-rays and 3D imaging, Dr. Mortensen can evaluate your bite to diagnose TMD. He can then create a treatment plan to relieve your pain, protect your oral health, and prevent further wear on your teeth. 

Learn More about TMJ

"I put my full trust in them."


Lesli Bonanni

Fountain Valley, CA


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Dr. Mortensen and his staff are incredible! I have been going here for years. I simply won’t go anywhere else. The level of professionalism, knowledge and expertise, courtesy and friendliness is off the charts! Can one actually enjoy going to the dentist? I do! I had a full mouth restoration some years ago and am quite particular about caring for my teeth. I trust Dr. Mortensen and his staff completely. Their level of care is immense.

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Joyce Allen

Fountain Valley, CA


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I am a person who hates absolutely hates to go to the dentist. However I saw Dr Mortenson today with his stuff and I have to say I have truly never met a better group of people for the office staff is all amazing and friendly and kind and Dr Mortenson himself makes you feel like you’ve known him forever and he’s very wise. I put my full trust in them and I’m so looking forward to To having the rest of my dental work done. I cannot believe I’m actually writing this! Lol I’ve never looked forward to going to the dentist, However I’m not terrified of Dr Mortenson!

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Andrew G. Mortensen, DDS

Andrew G. Mortensen, DDS

Dr. Andrew Mortensen is a top-rated dentist with training from the world-famous Las Vegas Institute. His exceptional care and expertise have earned him hundreds of 5-star reviews, and he is an accredited member of the:

  • American Academy of Cosmetic Dentistry
  • American Dental Association
  • California Dental Association
  • Orange County Dental Society 

Ready to schedule a consultation at our Huntington Beach dental practice? Request an appointment online or call us at (714) 964-4183.

Contact Us Today

Reach out to us today to set up an appointment and strengthen your oral health.
"I am proud to have served patients in our community. Through continuing education and state-of-the-art equipment, we are able to offer you and your family the high level of care you're looking for." Andrew G. Mortensen, D.D.S.

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