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you’ve never met a Smile Team like us.

Meet the Doctors

They are one-of-a-kind!

Spencer Mack, DDS Andrew Hansen, DDS

Welcome to Mack and Hansen Orthodontics

Our mission at Mack & Hansen Orthodontics is to be, first and foremost, loving people who are committed to building up every single person we come in contact with. We don’t see ourselves as a business or a company, but as a team of advocates for our patients, their families, and our communities.

While straightening teeth and aligning bites will be our job, inspiring goodwill and elevating others will be our livelihood. We will be the world’s best listeners to those who need our attention and the world’s loudest cheerleaders to those who need our encouragement. We’ll meet selfishness with generosity, coldness with warmth, and we at Mack & Hansen Orthodontics will treat others how THEY want to be treated. Always.

Dr. Spencer Mack and Dr. Andrew Hansen believe that everyone deserves to have straight teeth, a comfortable bite, and a fantastic smile. As such, we make treatment affordable for everyone and are an IN-NETWORK orthodontist with dental insurances.

We are here for you! Whether you are in Longview, just down the road in Kilgore, Marshall, or Gilmer, or in Mount Pleasant, Henderson, or Carthage, we offer LOW down payments, affordable payment plans, and accept ALL insurance, FSAs, HSAs, and CareCredit. Even better, your initial consultation is always FREE!

Our Services Include:

Discover the reasons why we're the smartest choice for your best smile and reserve your FREE Smile Consultation today.

Let’s be friends!

invisalign the clear alternative to braces

As the #1 Invisalign Provider in East Texas we make transforming your smile convenient, efficient, and affordable, even for the most complex cases.
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The AAO recommends all children have an orthodontic evaluation at Age 7. Learn about our FREE Observation Program and Early Treatment Options.
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It’s never too late to get an amazing smile, especially with our private treatment rooms and adults only lobby, as well as convenient, discreet, and cosmetically focused orthodontic treatments.
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glo science professional

A straight smile is great, but a straight BRIGHT smile is even better! Wrap up your orthodontic treatment with easy, fast teeth whitening!
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From crowding to overbites, we offer comprehensive orthodontic treatment to meet your needs, your goals, and your lifestyle.
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What patients are saying

“My daughter was very insecure about her teeth. She went from insecure to non-stop smiling in just a few months! For me that was just amazing! We love Mack & Hansen’s welcoming environment and their staff...always smiling, very helpful, energetic, and the most friendly in/out of the office. We Thank You All! I am FOREVER grateful for 'HER' smile!” ~ Sophia H. of Longview “My child actually looks forward to her orthodontist appointments!! The staff is always so friendly and it’s a positive, uplifting environment.” ~ Kara H. of Hallsville “I love the efficiency of Mack & Hansen Orthodontics. They have thought of everything when it comes to making a great customer impact. Not only are they skilled at making beautiful smiles, but they care about their patients. They are welcoming, up-to-date on technology, and really have hit the nail on great customer service! I would recommend them to anyone!” ~ Anita N. of Henderson “They have the absolute sweetest people working here! Every team member interacts with each patient. They show so much care for everyone and make you feel like family! I am so glad my braces experience has been with Mack & Hansen Orthodontics!” ~ Bonnie C. of Mount Pleasant “I love Mack & Hansen! Getting braces as an adult can be nerve racking, but this office has made my experience very comfortable! They offer great payment plans too. If you need anything they are very prompt with getting you seen or answering questions. Also, the new office is incredible and has an amazing mural painted outside.” ~ Alex M. of Kilgore “Absolutely the BEST orthodontists and office staff in town!  Always making sure we are taken care of and helping us on our smile journey!  Not to mention FUN!  Their ability to have fun makes it so much more enjoyable for their patients!” ~ Melissa H. of Marshall