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!

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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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Questions? Ready to make an appointment?


What’s new at Compass Dental Group?

Fueling Your Workout and Your Smile: Nutrition Tips For a Healthy Mouth and Body

Keep your smile and your body healthy by focusing on nutrition. Many people think they just need to workout to keep in shape, but nutrition plays an important part in staying healthy. You can help fuel your body, along with your smile, by staying on top of your nutrition and focusing on eating healthy all…

How Long Does Orthodontic Treatment Take, and Other Common FAQs

The desire for a straighter smile is not an unpopular one, with millions of youngsters sporting braces in North America. Braces are typically initiated between ages 11 and 14, as per the American Association of Orthodontists. They recommend having a checkup with an orthodontist by age seven to catch potential issues early.  This said, we…

5 Unique Valentine’s Day Presents To Wow Your Sweetheart

The Art of Thoughtful Gifting for Valentine’s Day If you are looking for a unique way to express your love to your valentine this year, don’t just grab a box of chocolate or a dozen roses and head out to a crowded restaurant on February 14th. Instead, think outside the box and get creative! Is…

Are Dental Implants Really the Best Tooth Replacement Option?

Here’s what makes dental implants such great restorations. If you have experienced tooth loss, you might be curious about what options are available to you to fix your smile. The truth is that missing teeth (whether you’re missing one or have no teeth at all) don’t just affect your self-esteem.  The spaces left behind also…

Healthy Eating Habits for a Radiant Smile This New Year

The Connection Between Diet and Dental Health Most people understand that food plays a key role in overall health, which is why one of the most common New Year’s resolutions is to develop healthy eating habits. If you plan on making a big dietary change in the new year, remember that starting small is the…

5 Ways a Whole-Person Dental Approach Benefits Your Oral and General Health

From your head to your toes: Oral health affects more than the mouth. We’ve all heard the rhyme. Your head bone’s connected to your neck bone, your neck bone’s connected to your … Well, you know the drill. But the idea doesn’t just apply to your bones—it’s also accurate for the rest of your body….