Twiss Family Dentistry

Dr. Thad B. Twiss, DDS

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Phone: 435-656-5987

923 S. River Rd., Ste 203, St George, UT 84790

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"We Believe In GREAT Dentistry!"

About Our Practice


We believe a high tech office allows us to offer the best most comfortable care possible.


We believe preventing bigger problems before they occur is less expensive, easier and most of the time less painful.


We believe in helping you achieve and maintain great dental hygiene. A healthy mouth is a happy mouth.

High Level of Care

We believe in treating our patients with the highest level of care as possible.

"We Believe In GREAT Dentistry"

Our Team

Our team consists of a talented group dedicated to give you GREAT dentistry.
Meet our team.

Our Services

We provide many exciting services that will leave you with a bright, white smile on your face!

Restorative Dentistry

What is “restorative dentistry”? Technically restorative dentistry is restoring your teeth to proper form and function. Basically this means that Dr. Twiss can fix you. Well, at least he can fix your teeth. It might be just eliminating cavities to fixing one or more broken teeth. It could mean changing the bite to enhance your chewing abilities to full mouth reconstruction. Maybe it is cosmetic dentistry to enhance your smile he has a whole bag of skills that enable him to take your teeth from average to awesome.


Dental implants are truly one of the biggest breakthroughs in dentistry of the last century. A dental implant is a synthetic structure that is placed in the space once occupied by the root of the removed tooth. The implant fuses to the jaw and provides a stable platform for a replacement tooth. Previously if a tooth was lost due to disease or damage the only options for replacement involved bulky dentures or bridges that negatively affect remaining teeth. Implants provide an excellent treatment option that is not only more comfortable but longer lasting. Implants are also a great option for those that have dentures. Implants can eliminate the looseness traditional denture wearers might experience. We offer the implants that allow dentures to “snap” in and stay in place. We also offer dentures that are fixed or screwed down that can literally replace the lost previous teeth. If you have questions about whether implants are a good option for you please let us know. Call to schedule a consultation including a 3D x-ray to find out the possibilities and options that would be best to replace your missing or broken down teeth.


Cerec Machine

Dentistry has come along ways in 50 years. We live in a highly technical world and dentistry is no different. Unfortunately some dentists prefer to practice dentistry in the same way it was practiced 50 years ago. There is a reason why your parents hated going to the dentist! Here at Twiss Family Dentistry we have invested a considerable amount of time and financial means to ensure that we stay at the cutting egde of technology available to us. We do this to make sure that our patients receive the best possible care in the most comfortable atmosphere possible. One of the ways we do this is with our in-office crown technology. We use CAD/CAM technology to scan your teeth and have a crown designed and milled just for you while you are at our office. We eliminate the goopy messing impressions. We can also stain and glaze the crown and match the color of your teeth to make it the most realistic crown you’ve ever had. If you’re ever in our office and hear the crown mill running feel free to wander over and watch it work, it’s pretty amazing.

Another way we use technology to make your life better is with our Deka CO2 Laser. This laser is used in therapies involving your gum and other soft tissues in your mouth. It uses intense energy to gently cut through the gums and it instantly seals blood vessels resulting in dramatically reduced bleeding during the procedure and less inflammation and pain afterwards.

If being in the dental office makes you a little nervous or uncomfortable we offer movies to distract you during treatment. Relax in the chair, watching a movie of your choice with noise cancelling headphones so you don’t have to hear what you don’t want to hear.


This is perhaps one of the more overlooked areas of dental practice and is therefore something that we are sure to check when you become our patient. Periodontics deals with the supporting structures of the tooth, namely the gums and the bone. When the gums are not cared for properly they can become inflamed which results in red, puffy gums that bleed easily. This condition is known as gingivitis. Gingivitis can progress into periodontal disease if left untreated. Periodontal disease or periodontitis is a serious condition in which the bone that supports the teeth recedes or pulls away from the tooth and as a result the tooth can lose some of its stability. Our hygienists have been specifically trained to check and identify areas of concern to either treat or prevent periodontal disease. Remember, a healthy mouth is a happy mouth.


Endodontics is another name for the dreaded “root canal.” Root canals have a somewhat undeserved bad reputation in popular culture. This is most likely due to the fact that a root canal most often becomes necessary after the tooth is already in a great deal of pain from infection. This infection can come from a large cavity that has reached the nerve or pulp in the center of the tooth or it can also come from the tooth being cracked or damaged. The pulp consists of nerves, blood vessels, and other soft tissues that reside in the middle of the tooth and extends all the way down the roots in tiny “canals.”

The root canal procedure involves removing all of the diseased tissue from the center of the tooth and down the canals, disinfecting the inside of the tooth and stopping the disease process, and filling the canals with a flexible material that prevents reinfection of the root canal spaces. The root canal procedure allows for the saving of teeth that would otherwise have to be extracted. Once a root canal is performed on a tooth a crown is usually placed to strengthen the remaining tooth structure and restore the tooth to proper function and appearance. Root canals are really not as bad as people fear and most often the patient feels very little soreness after the procedure.


I think I know why you found this page. When you smile you can’t help but feel self conscious about that one crooked tooth or that dark spot by your gums. Maybe the edges of your front teeth are chipped and worn or no matter how much you try to whiten your smile it just doesn’t get as bright as you’d like. Well, I’m glad you found us because you have options.

Advances in dentistry have made it possible for us to do some amazing things with your teeth and give you the smile you’ve always dreamed of. You don’t need to be embarrassed anymore or try to hide your teeth when you smile. In as little as 3 visits we can have you ready to walk the red carpet and show off your new smile to the world as well as your renewed and enhanced self-confidence. Don’t you think its time you did something for you? Give us a call. We can help.


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Twiss Family Dentistry
923 S River Rd
Suite 203
St George, UT 84790

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P: (435) 656-5987

Office Hours

Mon - Thur: 8am to 5pm

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