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 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 about dental 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.

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!

request Appointment

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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Questions? Ready to make an appointment?


What’s new at Compass Dental Group?

Planning a Summer Vacation? Don’t Forget About Your Teeth!

It’s time to escape! The sun is out, the kids are out of school, and it’s finally time to escape for summer vacation! There’s a high chance you’ve been looking forward to your family adventure for months, and it can’t come fast enough! You might even be making a list of what to pack. After…

Why Does Your Dentist Want to Know Your Medical History?

Why all the info? When it comes to giving your health history to doctors, it’s not uncommon. When you go to a doctor for the first time, it’s completely normal to arrive early so you have extra time to fill out countless forms about your family’s medical history. It’s tedious, but expected. But, why is…

How Do Palatal Expanders Work and Who Needs Them? We Have Answers

So, your child just had their first orthodontic evaluation. And, your dentist informed you that your child needs a type of orthodontic appliance referred to as a palatal expander. If you never had an expander as a child, you’re probably curious about this. Not only that, but you surely have a lot of questions. What…

Your Dental Health Checklist: Do These Five Things Every Day

Keeping Your Teeth Healthy You want to keep your teeth for your entire lifetime, so you need to make sure you are following a daily dental health checklist. That includes brushing your teeth daily and making sure to get a biannual dental evaluation at Compass Dental Group. Here, we talk about what you can do…

Dental Emergency Preparedness: 6 Things To Do When Dental Problems Strike

Emergencies can happen when we least expect them, and dental issues are no exception. Being prepared can make all the difference when a toothache or sudden dental problem strikes. In this guide, we’ll explore the unexpected world of dental emergencies—how to identify them, stay prepared for the unexpected, and even prevent some issues. Whether it’s…

Dental Implants vs. Dentures: 5 Key Considerations for the Best Tooth Replacement Option

Our smiles are often more important than we realize. If you have missing teeth, the chances are that you wish that were not the case. Choosing between dental implants and dentures becomes a big decision if you are looking for a new smile.  Interestingly, a study across 19 countries revealed that nearly one in five…