Shannon Hilgers Nissen Orthodontics
Shannon Nissen, DDS, MS:
Practice Profile Page


Shannon Hilgers Nissen Orthodontics
Shannon Nissen, DDS, MS (Orthodontist)

Mission Viejo, CA













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


Clear aligners


Comprehensive orthodontics

Space maintainers

Palatal expanders


Interceptive orthodontics


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 8:00 am to 5:00 pm

Tuesday: 8:00 am to 5:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 7:00 am to 4:00 pm

Friday: Closed

Saturday: Closed

Sunday: Closed





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

Stacy F. from Laguna Niguel, CA (Source: Yelp)


Dr. Nissen is truly the best orthodontist around! She takes the time to explain everything regarding your child’s orthodontic plan. She is very personable with every patient and gets to know them. The office staff is so welcoming as soon as you walk in! Everyone greets you with a smile. Both my children had an excellent experience with their braces because of this great office!

Richard Platts (Source: Google)


My wife took our 2 kids to meet with Dr. Nissen yesterday, they so kindly offer free consultations. The whole visit , from meeting Miss Kim, up front and than Dr. Nissen, was outstanding. Miss Kim explained the whole process and than Dr.Nissen even further . Dr.Nissen was very accommodating to our kids`s needs, especially our daughter, who was very scared. Dr.Nissen was kind, welcoming and very patient. She also answered all the questions our kids had. The office environment is very calming and kid friendly.

Brandon P. from Ladera Ranch, CA (Source: Yelp)


Dr. Nissen is a great orthodontist and her office has a spectacular staff. When you walk in you will be greeted with a smile and promptly taken care of. The oral care is equally as impressing, their experienced staff sets them apart from other orthodontic offices. Personally I was first a patient in middle school and just finished my last set of braces pre and post surgery. They made me feel important by constantly checking up on me and doing everything they could to answer any questions and make me feel comfortable concerning my braces!

Elizabeth O. from Costa Mesa, CA (Source: Yelp)


My experience so far has been wonderful at Dr. Shannon Hilgers Nissen’s office, she is very professional and yet very caring. Explains the procedure and what may or may not take place which makes me feel at ease, because as an adult I was very concerned to have braces yet Dr. Hilgers and the entire staff have been so caring, they make me feel extremely comfortable from the moment I come in the door. My children came to her dad Dr.Hilgers back in the 90’s and we where extremely happy with him as well, now that he is retired and met his amazing daughter I feel comfortable with her, you know what they say: “An Apple does not fall far from the tree”. Dr. Shannon Hilgers-Nissen is talented, knowledgeable and gifted in her field, I am sure they have some very interesting father – daughter conversations. The entire staff and office ambiance is very peaceful and comfortable. I recommend Dr. Shannon Hilgers Nissen 100%. Elizabeth Orozco

Heather Barney (Source: Google)


Coming from a family of dentists, I am pretty particular in who I choose for oral care. I can honestly say that Dr. Shannon Hilgers Nissen’s practice is first rate. She has a natural talent for orthodontic care (as a third-generation orthodontist, it must be in her blood) and is very caring of her patients. My personal favorite though is front office Kimberley. She won me over to the team the second I met her. Genuinely interested in others, she makes each experience at the office a positive one. So thankful to have landed in this practice via a referral from my dentist, Dr. Schneider, and one of my best friends!

Deborah C. from San Juan Capistrano, CA (Source: Yelp)


This was my first visit to Dr. Nissen’s office. My fixed lower retainer had come unglued so I needed to see someone right away. The office staff was very understanding and friendly. They got me in right away to see Dr. Nissen. The waiting area was very nice, a beautiful room with thoughtful amenities. The called my name so quickly that I only was able to enjoy the teas, cookies, comfy for a short time- but I was still very impressed. Overall it was an excellent experience! Thank you.

Tracy H. from Laguna Hills, CA (Source: Yelp)


Dr. Hilgers and the entire staff are wonderful.  My daughter’s teeth are looking great, scheduling was easy and  they worked cooperatively with our family dentist.  Dr. Hilgers noticed a very slight problem my daughter’s tongue that was causing her two front teeth to be pushed forward and so she referred us to get speech therapy.  My daughter went to this therapy and now all is well!  Thank you Dr Hilgers for being a kind and thorough orthodontist.

Mary Roll (Source: Google)


My 16 YO son finished his orthodontics 2 years ago and we returned today for a retainer repair. He was thrilled to be warmly greeted and remembered by the team. Over the past 5 years of provided services, I couldn’t be more happy with the expertise and professionalism of this group. And the outcome, with respect to my son’s teeth and overall appearance — everything I could have hoped for. Thank you.

Tami Mcgovern (Source: Google)


We love Dr. Nissen! She has done ortho on both of my kids and I can’t say enough…she has a great bedside manner, friendly office staff, a fun office that caters to the parents with coffee/tea/water/fresh baked chocolate chip cookies/movies/peaceful water fountain. My son had a complicated case and now has a beautiful smile. It says a lot that I drive from an hour away to have her treat my kids. I wouldn’t go to anyone else!

Jenny L. from Temecula, CA (Source: Yelp)


What can we say… we absolutely LOVE Dr. Hilgers Nissan and her staff. Our whole family has had the pleasure of working with them as they help put both of my children in braces and myself with Invisalign. They are TOP NOTCH in all that they do and they make it a point to get to know you and what’s going on in your personal life. You are not just a client to them. I would HIGHLY recommend them to anyone searching for an Orthodontist and friendly staff.

Kelly A. from Laguna Hills, CA (Source: Yelp)


I have been so pleased with Dr. Nissen and her staff. Both my daughter and my son have received their initial round of braces from her and their teeth look great…..second sets to come as they get older, and we will definitely use this practice again. The front staff is friendly and welcoming, and very willing to help with challenging schedules. The clinical staff are always professional yet friendly, and seem to truly enjoy their work. It is clear they all like working with children, and have the knack to interact with both kids and parents alike. During both of my kids’ treatments, Dr. Nissen was timely in recommending additional work to supplement their braces, such as needed teeth extractions or a headgear. She has a network of other professionals that made it convenient to seek that treatment outside her office if needed. Dr. Nissen herself is so wonderful to work with. I had questions about alternative options to orthodontia. It only was she was knowledgeable, but took the time to give me the pros and cons of both so that I could make the best decision for my kids. She is a true professional, and has a great ‘bed side’ manner that made our experience even that much better. I would highly recommend Dr. Nissen and her staff if you’re considering an orthodontist in Orange County.

Pershin Moradi (Source: Google)


This office is top notch, from the time you walk in to the time you leave …..everyone is so unbelievably sweet and kind. Dr. Hilgers is amazing!!!! She has an amazing chair side manner and her work is impeccable … My teeth look great, she is exceptional at what she does and she pays very close attention to detail, if you are looking for an orthodontist look no further!!!

Summer R. from Aliso Viejo, CA (Source: Yelp)


Dr. Shannon Nissen is amazing!  She skillfully created beautiful smiles for all 3 of my boys…each with a treatment plan that was well thought out and explained in detail.  Dr. Nissen is calm, caring and always willing to answer all of my questions.  After seeing the results that my boys had I decided to correct my smile!  I can’t rave enough about Dr. Nissen and her staff!!  Love!

Douglas C. from Ladera Ranch, CA (Source: Yelp)


One down, two to go!  We love our Orthodontist and she loves our kids.  Dr. Nissen always goes above and beyond with our family, she is someone who truly cares about doing what is best for our children.  They always feel comfortable and never nervous about their visits.  The office staff is always on time and super friendly! Our oldest daughter now has a even more beautiful smile then she had before and the other two children look forward to the same award winning results!

Christine G. from Santa Clarita, CA (Source: Yelp)


I highly recommend Dr. Nissen and her entire practice! I took both my daughters to Dr. Nissen, one for braces and the other for retainers.  Her office staff is one of the nicest, most professional that I have ever encountered in all my previous medical and dental experiences. We are always seen in a timely manner and everything is run so efficiently and smoothly. I took my older daughter to a different orthodontist/office and our experience was completely the opposite that we experienced here.  My younger daughter’s teeth look amazing and I actually looked forward to her appointments because I knew we would be in and out quickly and everyone there is so friendly! I can’t say enough nice things about our experience with Dr. Nissen and her staff! You feel how much they genuinely care about their patients and enjoy what they do.

Krista Harris (Source: Google)


We love SHN orthodontics! Our son just finished his second round of braces and we had an appointment yesterday to assess our daughter’s jaw. Everyone is so friendly and kind. Scheduling is easy. Dr. Nissen explains everything in detail and patiently answers whatever questions come up. We’re glad to have found SHN Ortho!

Jenni C. from Mission Viejo, CA (Source: Yelp)


About five years ago, our pediatric dentist recommended I take my boys to see Dr. Shannon Nissen for a consult due to overcrowding. We went in to meet her and have been seeing her ever since. She’s a fantastic orthodontist who is kind, professional, and very knowledgeable. She spends a lot of time with her patients and provides thorough treatment plans that are also affordable. Her staff is amazing! They’re so kind, gentle, and patient, and they run that office like a well-oiled machine. I’ve never had to wait more than 5 mins for our scheduled appointments! Also, the office is really fun. Every month they have some kind of interactive activity, such as raffles and drawings, which my boys always look forward to. A lot of these in-office activities have a charitable component where Dr. Nissen gives back to the community. And if that wasn’t enough…the front office staff hands out warm chocolate cookies to their patients and families when as the walk out the door.

Andrew Morton (Source: Google)


I highly recommend this Orthotondist. Their politeness lends great courtesy to all patients. They are professional and experienced. The dental technicians are beyond pleasant. I look forward to making my appointments. I’ve had my braces for just under two years and I’m almost done. I will miss making my appointment with Kim at the front desk and getting my braces tightened by Bobbi and Leana. Whether you’re 6 years old or 26, this office is the best!

Yvonne Rahim (Source: Google)


Our experience with Dr. Nissen has been incredible! Not only is she an amazing orthodontist but she is professional and caring. She pays careful attention to every aspects of her patients care. As a parent I really appreciate all the time she took to explain the different aspects of my daughters treatment and how she answered all my questions. Her staff is more than competent and goes above and beyond to ensure that each patient has as an great experience at each visit. My daughter just got her braces off and already says how much she will miss seeing the staff. I can’t say enough about Dr. NIssen and her staff. We will miss you. Thank You again for making my daughter’s experience so wonderful you truly are all a bunch of gems.

Deanna M. from Mission Viejo, CA (Source: Yelp)


Dr Nissan and her staff were fantastic throughout the orthodontic process. We have no problem getting in and or changing appointments to fit with our busy schedule. They made the process simple and explained everything that needed to be done in an east to understand way. Their staff is kind and happy and it is a pleasure to go into their office.

Shanai A. from Aliso Viejo, CA (Source: Yelp)


By far the most friendliest environment to be an orthodontist place. The workers are friendly and so sweet. I usually don’t have to wait more than 10 mins when I arrive for my appointment. Shannon Hilgers Nissen has been my dentist for a quiet a while now and there has been no problems that ruined my visits with them. Everyone feels like family and make you feel welcomed. The environment is nicely set up. Dr. Nissen can provide pediatric dentistry to all of your kids, no matter the condition of their teeth. He has a great personality, providing you with the professional, business side and the caring, loving side that you need while going through each procedure and needed treatment.

Kathy M. from Carlsbad, CA (Source: Yelp)


Dr. Nissen is so personable and professional at the same time. She takes time to explain the process and procedures to reach the best outcome. I have gone through jaw splint therapy, braces, and now retainers with Dr. Nissen and have always been so pleased with my treatments. Dr. Nissen’s pleasant “bed side manner” is complimented by an amazingly warm, friendly staff. It’s so nice to come in and see friendly warm faces who genuinely care how you’re doing and are never shy to start up a fun conversation. I look forward to visiting Dr. Nissen’s office for years to come as I have one daughter already in braces and another yet to come.

Jamie Gonzalez (Source: Google)


Both of my sons are patients of Dr. Shannon Hilgers Nissen and we couldn’t be more satisfied. She has such a wonderful way with the kids and they actually look forward to going to the Orthodontist. She explains everything very clearly on each visit which really helps to understand the whole process. In addition to the doctor being amazing, all of the office staff are so kind and friendly. They know you by name and really care about their patients (and their patients parents)! The office also makes the financing of the treatment and the correspondence with the insurance company seamless. It is literally the easiest process. They even have fresh coffee and cookies while you wait. I am 100% satisfied with the level of professional service that we have received at Shannon Hilgers Nissen Orthodontics!

Meredith Hosseini (Source: Google)


This office is a five-star operation. Period. Everything is first rate from the moment we book our appointment to the welcome we receive upon arrival and the always-excellent orthodontic treatment. Your philosophy toward patient care and service has set a positive tone for dental experiences for my daughter and son. More importantly, they feel responsible for taking good care of their teeth and overall health. Thanks for a great two years of treatment and the follow up care you provide. P.S. The Keurig and fresh chocolate chip cookies didn’t hurt, either. 🙂

Lisa C. from San Diego, CA (Source: Yelp)


What a wonderful Orthodontist!  I went in as an adult to correct some issues that have been bothering me for quite some time.  I was really nervous about going in, as I’m not a huge fan of getting work done on my teeth!  I couldn’t have chosen a better Orthodontist.  Dr. Nissen is an incredibly warm and compassionate person.  My anxiety was minimized very soon after meeting her.  She has done a fantastic job and I would highly recommend her to anyone looking for an Orthodontist in the Orange County area!

Alisha M. from Trabuco Canyon, CA (Source: Yelp)


Dr. Nissen and everyone in the entire office is wonderful! There isn’t enough space on Yelp for me to list everything I love about Dr. Nissen’s office. Every.single.person is happy, helpful and caring. We are on our 3rd family member to receive braces and I recommend the office to everyone that I can! Thank you for everything!! 🙂

Michelle K. from Mission Viejo, CA (Source: Yelp)


I am a 2nd generation patient of Dr. Hilger’s office; meaning that my daughter was treated as an adolescent 13 years ago, and I returned as an adult patient. Two generations of my family being treated by two generations of Orthodontists. I didn’t consider another practice when I decided to get Invisalign. Dr. Hilgers Nissen’s office is the most inviting office you can imagine! At the moment you walk in, you are greeting by Kim with the kindest smile. Each staff member, including Bobbi and Lenna, take the time to get to know you and asks about your family, interests, etc. Financial plans are available and expertly handled by Janice, the office Financial Coordinator. Dr. Hilgers Nissen is both professional and compassionate. She has amazing communication skills and explains your treatment plan in an easy to understand way. I have and will continue to recommend Dr. Shannon Hilgers Nissen to anyone who is considering Orthodontics.

Paul W. from California (Source: Yelp)


I have had the incredible service and support from Dr. Nissen and her team for over 19 months now with not a single incident. Dr. Nissen and her staff are exceptional and never cease to amaze me with each and every visit. Everyone is friendly and greet with a smile. Their customer service is a benchmark for any organization. They go out of their way to ensure that you’re always comfortable and relaxed during your appointment. They are simply the best and I would debate anyone who says otherwise. Lastly, there give away free cookies… need I say more?

Andrea Harris (Source: Google)


Last time I was in Dr. Hilgers Office was in 2006 to take my braces off. BTW having braces was the easiest ever with the support and knowledge of this Orthodontics group of professionals!!! My appointment today was with the same outstanding service that I experienced 2006. I needed to replace my built in retainer. All went smooth. This time I got to meet Dr. Hilgers (Nissen) daughter. She is just as the professional as her father was. Her staff and her new remolded office is state of the art; outstanding. I would recommend this orthodontic to anyone! Thank you ladies for your ways of being and professional service. !! Rock On ~ Andrea Harris Jacobs

Tanya Wills (Source: Google)


Great care and a most wonderful staff. We are very pleased with the care we are recieving from Dr. Hilgers Nissen. She and her team provide wonderful care and all are so kind and talented on kids matters. Our 8 year old was in pain from his cramped teeth coming in and we now have a plan to straighten his teeth, without pulling permanent teeth. Very please with the plan. Anytime our child has any issues with his teeth or retainer, they get us right in and always fix the situation to everyone’s agreement. Great results!

Kathy D. from San Diego, CA (Source: Yelp)


Today was our very last visit to the orthodontist… I am honestly sad to say we won’t be spending time there anymore!!! My son has been a patient here for the last 4 years.. The staff is professional, friendly, caring and extremely talented with their work!! They always made time in their schedule for us even if they had to squeeze us in!!! We feel so fortunate that an experience that could be painful and traumatic for a teen was basically a breeze!! HUGE thanks to all that work here.. you are an exceptional group of people and we are so thankful we chose you!!! I will continue to recommend this practice to anyone in search of orthodontic needs!! Many thanks, The Danache Family 🙂

Niki R. from San Juan Capistrano, CA (Source: Yelp)


I brought in my son four years ago based on a friend’s recommendation. The staff did not disappoint. They are by far the most attentive, kind and friendly office staff I have ever encountered. After going over what was needed, they reviewed the payment plan which was very reasonable. Next, I brought my daughter for an exam and turned out she needed extended work since she had teeth that were growing in all the wrong places. Dr. Shannon has been amazing in her treatment and working with a great oral surgeon to fix my daughter’s teeth. She is super gentle and always smiling. We look forward to come for our visits because we are greater with smiles, great care that doesn’t break the bank and the best coconut coffee. Did I mention warm freshly made cookies?

Laura C. from San Juan Capistrano, CA (Source: Yelp)


If you have been in this area for some decades you might remember that there were only two orthodontists to go to around here and one of them was Dr. Nissen’s dad, Dr. Hilgers and he was the bomb. So when my kids needed braces I knew where I was going. I heard he was still practicing and his daughter was in practice with him. Their practice did not disappoint. He has since retired but in those years I got to know the staff and Dr. Nissen and then decided I really wanted to get my teeth re-straightened. I’d had braces (w/a diff orthodontist) but common practice back then didn’t include long term retainer wearing (either a night only kind or a thin wire behind just the bottom lower teeth to keep the whole bite overall super straight). So I went in for a consult with this great feeling of knowing their very track record which I have to say was huge – everyone in the practice is incredibly professional but also super friendly. Turnover over the years is zero and that says a lot – you can tell they genuinely enjoy each other and what they’re doing. To make things even better my insurance covered a pretty great portion so I was excited about “treating myself” to something that maybe most people didn’t really notice but I wasn’t super happy with. I have had TMJ and I have had gum recession issues in the past, so I really REALLY wanted to make sure I worked with someone who knew what they were doing. Now I have straight teeth again!!! And so do my kids! You can’t go wrong putting yourself in their care. Dr. Nissen is super knowledgeable and really focused on making sure you are happy all along the way and especially with the results. She is patient – she’s not about to compromise your results with getting you in and out. No one there is. And you’ll love the front office staff too in that they always have it together and this place runs on time! Having several friends who were patients as kids and now have returned with their kids to get their work done says a lot. The consistency to excellence is always paramount here.

Brittany Fastuca (Source: Google)


Pain to get into the office from how the intersection is set up, but totally worth the stop! Every part of your experience within the office is great! From the front desk with her beautiful teeth and most friendly personality to Brooke Benford who helps you out with your treatment with the biggest smile and friendliest welcoming as well. It kind of throws you off because dental offices aren’t usual this friendly. Then you get to Dr. Shannon who goes through every single option with you and really, truly takes the time to listen to your needs and goes through what would work best for you with your teeth and budget. They also have a flexible payment plan! Great place to be even with the pain of braces.

Maeraj S. from Madison, WI (Source: Yelp)


I just love my orthodontist! Besides being a fantastic ortho, Dr. Nissen is a kind, compassionate, lovely person who always acts an advocate for her patients. Her office staff are also always professional and such pleasure to deal with. I had TMJ issues prior to surgery and Dr. Nissen immediately ordered a splint for me at no additional cost. I just had double jaw surgery this past week and was completely blown away today when I received a beautiful flower arrangement delivered to my door with a hand written note from the HNC offices wishing me a speedy recovery. These folks really care about their patients. If you are looking for a top ortho with experience in TMJ issues, orthognathic surgery cases and more–look no further this is the place you want to trust with your teeth and face!


Our doctors and charismatic staff offer state-of-the-art treatments and services in an environment that is relaxing, comfortable, and fun. Our goal is to treat all of our patients with personalized care and attention while creating beautiful smiles that will last a lifetime! The field of orthodontics offers a variety of techniques and devices to treat many functional and aesthetic issues. Our office uses only the highest quality of materials and technologically advanced treatments to assure our patients attain the best smile possible. We are a modern Orthodontic specialty office licensed in treatment using Damon and Face brackets, Invisalign, TMJ Splint Therapy and much more. Please inquire by setting up a complimentary consultation! Over 40 years ago Dr. Nissen's father, Dr. James Hilgers, established his Orthodontic practice at our current location. Dr. Nissen is a proud third-generation Orthodontist who enjoys the pleasure of delivering orthodontic treatment in her own unique way! Her hallmarks are great orthodontic vision, attention to detail, and a kind and communicative approach to practice. We look forward to our journey with you! At this practice, we believe that orthodontics is a serious business that should be done in a fun way! Our staff is warm and welcoming and our doctors are playful. We love our jobs and it shows in our chairside manner. Our team is special because they love what they do and they enjoy where they work. Many of our staff members have worked with us for over fifteen years and we are like one big family! We all enjoy treating our patients well and educating them about their oral health. I wish you a warm welcome to our Orthodontic practice! I am truly blessed to be an orthodontist! I work with a wonderful staff and I interact with amazing patients everyday. We are here to support our patients and help them better themselves in functional and aesthetic capacities. I love interacting with patients of all ages and I enjoy seeing the beneficial changes that our treatment brings into their lives. I have grown up in this office; My first job as a teenager involved mixing cement and sterilizing instruments for my Dad, Dr. James Hilgers. I am a third-generation orthodontist and I feel very honored to carry on the family tradition. I am a local product of St. Margaret’s in San Juan Capistrano. After high school I headed north to Santa Clara University where I received my B.S. in Psychology. After completing my Doctorate of Dental Medicine at Tufts University in Boston, I returned to Southern California and Loma Linda University where I received my Master of Science degree in Orthodontics and Dentofacial Orthopedics. As my patient you will enjoy outstanding orthodontic treatment, honest communication, and a friendly and professional atmosphere. As a mother of two small boys, I know that a kind and gentle approach is the best way to make your children enjoy the orthodontic experience. I met my husband, Andrew, while attending Santa Clara. We both completed our graduate work Boston and then came back to California where we were married in 2005. Andy practices law in Laguna Niguel. In addition to being an avid baseball fan, in his spare time Andrew loves to ply his skills as an amateur brewmaster. We have two wonderful sons, James and John, and a golden retriever named Gus. When I’m not in the office, I enjoy many activities including exercising, golfing, biking, hiking, reading, attending yoga classes, and knitting.