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.

Liz Cleland
6 months ago
This was my first visit and everyone made me feel comfortable! Haley was my hygienist and I throughly enjoyed my time with her. It did...
Mandy Felton
4 months ago
You can tell this must be a great place to work because everyone is ALWAYS happy & upbeat! Dr. V is thorough & informative with...
Katherine Steiner
5 months ago
Everyone at Compass Dental is just fantastic! My 6 year old had a cavity filled and still likes to see the dentist! My teenager has...
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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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?

5 Ways Regular Professional Dental Cleanings Are Different From Good Home Oral Care

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8 Reasons You Can Be Looking Forward to Life After Dental Implants

Lifestyle Benefits of Dental Implant Surgery Dental implants are a very popular alternative to dentures and dental bridges, but there is one downside—the months of healing required for the implant to fuse to the bone. Dental implant surgery has one of the longest healing periods of any dental restoration or oral surgery. It’s certainly understandable…

Should Orthodontics Be a Primary Dental Concern for Your Children?

As parents, we have many responsibilities and things we worry about, and for good reason. We work tirelessly to teach our children manners and how to interact with others. We do our best to position them to do well in school, spending hours at home helping those school studies sink in. We haul our kids…

6 Tips for Good Oral Hygiene When Your Health Condition Requires Snacking

For many Americans, the battle of the bulge is real, and calorie restriction, diets, frequent exercise, and more are parts of the daily routine. But for some people, specific ailments can require frequent snacking, six small meals a day, or other diet modifications. But all that food can be bad for your teeth and gums,…

Are Dental Implants Really as Good as They Sound?

Dental implants have grown rapidly in popularity to become one of the most widely used restorative treatment options today. They can let individuals with missing teeth enjoy a strong, beautiful, and full smile once again. However, many patients have questions about just what this treatment option has to offer. What are dental implants? Dental implants…

How to Take Care of Clear Aligners Versus How to Take Care of Braces

Caring for aligners or braces is as simple as ABC. When you’re receiving orthodontic treatment with either clear aligners or braces, you can generally rely on these treatments to do most of the work for you. However, there is some basic maintenance you’ll need to do to ensure you maintain proper oral hygiene and that…