Keeping You on the Path to a Beautiful, Healthy Smile

Compass dental team




About Compass
Dental Group

Welcome to our modern dental practice. We provide a wide range of dental services to patients of all ages. Whether you’re looking for routine preventative care, researching our restorative or cosmetic procedures, or finding a dental home for your entire family, our friendly and informative team at Compass Dental Group is happy to help.

doctor working on patient


Orthodontic treatment can help you achieve a beautiful, healthy smile at any age. Our services include phase I orthodontics, which focuses on gentle jaw correction in children, and phase II, which emphasizes alignment in adolescents and adults. It usually involves braces and begins when most of the adult teeth have emerged.

Learn More about orthodontics
Doctor with team member and patient in chair

Dental Implants

From replacing a single tooth to accomplishing a full mouth restoration, dental implants restore functionality and beauty to your smile. Ideal placement and porcelain crown create a wholly natural-looking result, giving you reason to smile again.

Learn More about implants

We cover the entire spectrum of dental care.

Here at Compass Dental Group, we provide preventive, restorative, and cosmetic dental care designed to improve your oral health and your smile. Located in Maryville, Missouri, our office is in a modern facility designed with your convenience and comfort in mind. From beautiful veneers to detailed smile restorations, we deliver results that make a difference in how you look and feel.

our mission

We are committed to providing the best possible dental care to each patient who comes through our doors. We treat you like family, listen to your needs, and always do our best to help you feel welcome and at home. Our goal is to build an open and trusting relationship together.


Checkups and Cleanings

Compass Dental Group helps you maintain good dental health by providing routine evaluations, preventive cleanings, and basic oral care. These services, which we carry out with your comfort in mind, can detect common dental problems during their early stages, protecting you and your family from time-consuming and potentially expensive treatments.



A dental crown is a restoration that completely covers your natural tooth. While your dentist may recommend a crown if you have a decayed or damaged tooth that can’t be repaired with a filling, it can also act as an anchor for a dental bridge or complete a dental implant restoration.


Teeth Whitening

Teeth whitening is a popular cosmetic treatment that makes your teeth brighter and more attractive. With our professional teeth-whitening services, you can either whiten your teeth in the comfort of your home or in our office. We make teeth whitening comfortable and safe for our patients while achieving the natural-looking results they desire.



Periodontal disease, also known as gum disease, is a common oral condition that can result in tooth loss and serious systemic health problems when left untreated. Periodontal therapy at Compass Dental Group can help you maintain your oral health and beautiful smile.


Clear Aligner Therapy

Unlike conventional metal braces, clear aligner therapy is bracket- and wire-free, making it more comfortable and less visible. This orthodontic treatment straightens teeth using clear dental appliances specially created for each patient. By applying gentle pressure over time, these aligners gradually move the teeth into their ideal positions.

Here’s what our patients have to say.

Dean Sparks
a month ago
Had my usual good visit with Compass Dental yesterday. Everyone was friendly and helpful as always, and Sarah and Dr. V did their thing as...
Nancy Bishop
3 months ago
I cracked a tooth on Wednesday and called Compass if they could get me in to get it fixed. They gave me an appointment...
Seth Wehrkamp
2 months ago
This was my first experience at Compass, and it was great! I saw Sara Hull, and she was super nice and gentle when it came...
Three doctors together

Meet Your Dentists

At Compass Dental Group, Drs. Brian Vierthaler, Bruce Twaddle, and Spencer Twaddle are committed to providing the most comprehensive, highest-quality dental care to all our patients. We maintain a modern facility equipped with cutting-edge dental technology, which allows our dentists and team members to provide patients with superior treatment and results.

Your new smile awaits!

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Call us or fill out our online form to schedule a visit.

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Complete forms

Fill out our patient forms before your appointment.

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Enjoy Your Smile

See for yourself why so many patients trust us with their dental care needs.

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What’s new at Compass Dental Group?

Keep Your Teeth Healthy During Your Summer Vacation

Keep up with your dental routine while you are on vacation this summer. Summer vacation is the time to let loose, have fun, and relax, but that doesn’t mean you should skip out on your dental routine while you are away. If you want healthy teeth it is important to keep up with your oral…

Why Can’t I Eat It? 10 Foods to Avoid During Orthodontic Treatment

Smiles are contagious, and we want our families to have radiant smiles. If you are undergoing orthodontic treatment, you might have encountered some challenges. We understand that it can be frustrating to avoid your favorite treats, but we’re about to dive into the world of orthodontics and reveal the 10 foods that are best avoided…

5 Instances When You Might Want To Consider Sealants for Cavity Prevention

Have you ever felt like your teeth are constantly under attack? Between the sugary snacks and the sneaky bacteria hiding in your mouth, it’s no wonder that cavities are a common problem. But fear not, my friend! There’s a superhero in the dental world that can help protect your teeth from the evil forces of…

5 Reasons Why You’ll Love Your Dental Implants in Maryville, MO

Dental implants have become increasingly popular for patients looking to replace missing teeth. With a reported success rate of 90% to 95% over the course of 10 years, it’s no wonder why so many people are turning to this innovative solution. At Compass Dental Group in Maryville, MO, dental implants are a game-changer for restoring…

5 Tips on Getting Ready for a Healthy, Happy Summer With Your Family

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4 Ways a Healthy Smile Equals a Healthy Body

Have you ever heard that oral health is the gateway to overall health? It’s true, and it makes sense when you start to think about it. Whether you eat too little, too much, or an unbalanced diet, the foods you eat can impact your weight, blood pressure, glucose levels, and more. Smoking or chewing tobacco…