Thornton Kids Dental Office

7375 E. 128th Ave
Thornton, CO 80602

(720) 629-9969

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Meet the Doctors

Dr. A. Patrick Smithwick, fondly known as Dr. Paddy, and Dr. Roger Castro, known as Dr. Roger, are board-certified pediatric dentists. (Fun fact: They were actually friends in dental school!) Dr. Justin Owens, a certified specialist in orthodontics, rounds out the team. The trio offer a full range of pediatric dental services and orthodontic treatment to kids and teens. They are all about providing exceptional care and making the experience positive and fun to encourage a lifetime of awesome oral health.
braces-adult-teen-childTreatment for Kids

At Kids Mile High we take a kid-centered approach. We make it entertaining and fun which creates a positive relationship with oral health that can last a lifetime.

Treatment for Teens

In addition to keeping your teen’s teeth and gums clean and healthy, we’ll monitor the development of their mouth and point your teen in the right direction if it’s time to start thinking about braces.

Isolite Systems

The Isolite System relies on a single-use, soft and comfortable bite block so your child’s jaw won’t hurt after a procedure.


Myobrace is a better way to achieve straighter teeth without the use of braces! It’s a natural way to fix bad oral habits and exert light force to align the teeth and jaws into their natural position.


Waterlase dentistry uses a combo of water, air and laser energy, to perform a variety of dental procedures. It’s a way more comfortable way of treating infants and young children.


Kids Mile High has partnered with Under Armour to offer our sports playing patients the ultimate in tooth protection. It all starts with an awesome 3-D scan of their mouths and results in a custom mouthguard.


Braces are a tried and true way to straighten teeth and align the bite. At Kids Mile High, we offer clear braces and metal braces for kids.


Does your child want to perfect their smile without brackets and wires? You’re in luck. We’re a Thornton Invisalign and Invisalign Teen provider!