Sierk Children's Dentistry
Pediatric Dentistry
Tiny Teeth Are a BIG Deal!

We offer gentle, full-service pediatric dentistry for children and teens of all ages and abilities in a fun and inviting setting.

young boy at pediatric dentist castle pines
One Tooth, Two Teeth, Three Teeth, More!
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Pediatric Dentist in Highlands Ranch

Dr. Sierk with children at dental appointment

Your Child's Dental Home in Castle Pines

Your child’s smile is priceless, and it’s our goal to make sure their teeth stay healthy and strong throughout their childhood and into their adult lives. Sierk Children’s Dentistry is the dental home to patients in Highlands Ranch, Castle Pines, Castle Rock, and the surrounding communities. 

Healthy Teeth Are Happy Teeth 

Pediatric dental care is crucial to helping your child maintain a healthy smile for many years to come. We believe that the health of a child's smile is directly connected to whole-body wellness.

Throughout your child’s entire oral health journey, we will be by their side to guide them on how to best care for their teeth and gums at every life stage. From complimentary first visits for infants and toddlers to care into their teen years, Dr. Jon and our team are passionate about helping your kids grow into happy, healthy adults. 

3 Reasons to Choose a Pediatric Dentist

Choosing a pediatric dentist for your child provides several benefits you may not have considered.

Specialized Care

Pediatric dentists complete years of additional training that qualifies them to cater to the unique needs of children.

Relationships

A positive relationship with the dentist can set your child up for successful future visits and a lifetime of excellent oral health.

Early Detection

When we spot dental problems early on, we can advise parents on the best treatment or course of action for their child.

Frequently Asked Questions

childrens dental exam | tooth fairy and cavity-free clubTooth decay in children can develop quickly, and recognizing the early signs is essential for preventing further damage. Here are some common indicators to watch for:

  • White spots on teeth The first sign of tooth decay is often the appearance of white spots on the enamel. These spots indicate the beginning of mineral loss and demineralization, which can lead to cavities if untreated.
  • Sensitivity If a child complains about discomfort or sensitivity when eating hot, cold, or sweet foods, it could be a sign that decay has reached the deeper layers of the tooth.
  • Visible cavities — As decay progresses, small holes or pits may form in the teeth, which are visible to the naked eye. These cavities may become more noticeable as they grow larger.
  • Pain or discomfort — A child experiencing persistent tooth pain, especially when chewing or biting down, may have advanced decay.
  • Bad breath — Persistent bad breath or an unpleasant taste in the mouth can indicate the presence of bacteria associated with tooth decay.

Remember, regular dental checkups are vital for early detection and straightforward treatment.

Compassionate Preventive Dental Care for Kids in Castle Pines, CO

If you’re in Castle Pines, Highlands Ranch, or surrounding areas and looking for a dental team to provide your kids with vital preventive, restorative, and corrective dental care—including identifying and preemptively treating tooth decay—in a warm and caring environment, contact Dr. Jon Sierk and the outstanding Sierk Children’s Dentistry team to schedule an appointment!

It’s common for kids to complain about tooth sensitivity, especially when eating cold foods like ice cream or sipping on a cold drink. But as a parent, it’s hard to know when it’s a minor issue and when it could be something more serious.

Here’s how to tell the difference:

Typical sensitivity usually presents as brief discomfort triggered by temperature changes or sweet foods and doesn’t linger. It could be due to mild enamel wear, a new adult tooth coming in, or even a minor issue with brushing technique.

More serious concerns include:

  • Sensitivity that lasts more than a few seconds
  • Spontaneous pain (not caused by hot/cold or food)
  • Swelling or redness around a specific tooth
  • Pain when biting or chewing
  • Trouble sleeping due to dental pain

Give Our Children's Dentist a Call!

Is your child experiencing any of these symptoms? If so, it may mean your child has a cavity, infection, or cracked tooth. In these cases, it’s important to please contact our emergency pediatric dentist right away.

At our dental office, your trusted pediatric dentist in Highlands Ranch and Castle Pines, we’re here to help you get to the root of the issue, quickly and gently. When in doubt, give us a call

Thumb sucking and pacifier use are not always problematic. They are a normal rite of passage for many children. However, if these habits go on too long or disrupt oral development, it’s crucial to intervene. Fortunately, your child’s dentist in Castle Pines or Highlands Ranch can help.

Remember that a pediatric dentist can help with thumb sucking and pacifier use. We know it can be a challenging habit for your child to break!

About Thumb Sucking and Pacifier Cessation

Your child’s dentist is uniquely qualified to monitor the impact of these mouthing habits on oral development. If issues arise or it’s time for your child to wean off these activities, the dentist may use any combination of therapies, including:

  • Guidance and tips for at home
  • Behavior modification strategies
  • Appliance therapies  

Some techniques discourage the habit. Others modify the behavior or introduce alternatives. It can be challenging, but your child’s dentist and our entire team have helped countless children give up their thumbs and pacifiers. We can identify target strategies tailored to your child’s unique temperament and habits.

Contact Your Pediatric Dentist in Castle Pines or Highlands Ranch

If your child’s sucking habits are a growing concern or if you would like to book a consultation with the dentist, call us today at (303) 865-4066. We are conveniently located in Highlands Ranch and Castle Pines.

pediatric dentist highlands ranch | Dr. Jon with patient and parentPediatric dentistry offices are colorful, fun, and child-friendly. Dental phobias are often rooted in childhood, so it is essential that the child feel comfortable, safe, and trusting of the dentist from the outset.

The pediatric dentist focuses on several different forms of oral care:

  • Prevention – Tooth decay is the most prevalent childhood ailment. Fortunately, it is almost completely preventable. Aside from providing advice and guidance relating to home care, the pediatric dentist can apply sealants and fluoride treatments to protect tooth enamel and minimize the risk of cavities.
  • Early detection – Examinations and x-rays allow the pediatric dentist to predict future oral problems.  Examples include malocclusion (bad bite), attrition due to grinding (bruxism), and jaw irregularities. 
  • Treatment – Pediatric dentists offer a wide range of treatments. Aside from preventative treatments (fluoride and sealant applications), your pediatric dentist also performs pulp therapy, treats oral trauma, and provides tongue tie release procedures to improve feeding, speech, and oral development. If primary teeth are lost too soon, space maintainers may be provided to ensure the teeth don't become misaligned. We also offer myofunctional therapy to help correct improper oral muscle habits that can impact breathing, speech, and bite development.
  • Education – Education is a major part of any pediatric practice. Not only can the pediatric dentist help the child understand the importance of daily oral care, but parents can also get advice on toothpaste selection, diet, thumb-sucking cessation, and a wide range of related topics.
  • Updates – Pediatric dentists are well informed about the latest advances in the dentistry field. Children who do not see the dentist regularly may miss out on both beneficial information and information about new diagnostic procedures.

Schedule Today!

If you have questions or concerns about when to see a pediatric dentist, please contact our office or schedule your child's first visit online. We are conveniently located in Highlands Ranch and Castle Pines.

Even before your baby's first birthday, their emerging teeth are at risk for dental issues. Understanding these potential problems and implementing early preventive measures are key to a lifetime of healthy smiles. At Sierk Children's Dentistry in Highlands Ranch and Castle Pines, CO, we're here to guide you.

Common Baby & Toddler Dental Concerns

The most common concern is early childhood caries (baby bottle tooth decay), which can affect teeth as soon as they appear. This is especially true for infants and toddlers who frequently drink sugary liquids like formula, juice, or sweetened water from bottles or sippy cups, particularly at bedtime. These sugars pool around the teeth, leading to cavities.

Additionally, Dr. Jon offers comprehensive oral evaluations to assess for conditions like tongue tie, which can impact feeding, speech, and overall oral development. We can discuss services such as gentle tongue tie release and supportive myofunctional therapy when needed.

Preventing Dental Problems in Infants

Prevention starts early. During your baby's first visit, our pediatric dentist will help you establish a preventive strategy and demonstrate proper infant teeth brushing.

Dr. Jon and our team also emphasize:

  • Limiting Sugary Liquids: Avoid filling cups with sugary drinks.
  • No Sweetened Pacifiers: Never dip pacifiers in honey or other sweet substances.
  • Preventing Bacterial Transmission: Avoid sharing spoons or cleaning pacifiers in your mouth.
  • Promoting Water Intake: Encourage water throughout the day and after feedings to rinse away sugars.
  • No Bedtime Bottles: Dr. Jon and The American Board of Pediatrics strongly advise against putting children to sleep with a bottle containing anything other than water.

Affordable Dental Care for Children

If you have any questions about your dental plan, LendingClub, or CareCredit, please call our dental office today. One of our friendly staff members can answer your questions and address your concerns. Call us to inquire about our complimentary examination for children under age of 3; without a dental plan.

We look forward to seeing you at Sierk Children’s Dentistry at our Highlands Ranch or Castle Pines location! 

Our Dental Philosophy

We prioritize patient and parent education and are always happy to share our tips and tricks for caring for your kid's teeth. To help you keep your child's mouth healthy throughout their younger years, we offer: 

We support parents in caring for their child's teeth so they can better understand common health risks as they grow. We also support parents in helping their children avoid dental accidents, practice good oral hygiene at home, and much more.

Meet Our Doctor:

Dr Jonathan Sierk | Pediatric Dentist

Dr. Jon Sierk

Dr. Jon has been serving the children and families of Colorado since completing his pediatric specialty training in 2003 and is proud to be a diplomate of the American Board of Pediatric Dentistry.

"I am humbled by the trust our patient families have in the care that my team provides. When a child is in our care, they are treated as if they are one of our own.”
-DR. JON SIERK

After growing up in Bettendorf, Iowa, Dr. Jon graduated from Northwestern University in 1996 where he divided his time between studies ...

Comfortable Care for Smiles of All Ages

Your child’s comfort is very important to us, and we strive to help you and your child feel relaxed and happy while at our dental office. At Sierk Children’s Dentistry in Highlands Ranch, we treat your child like our own, and we create a fun and inviting atmosphere where they can feel confident and comfortable being themselves. To make sure your child feels as relaxed and welcome as possible, we also offer:

  • Weighted blankets 
  • Headphones 
  • Private treatment rooms 
  • TVs in treatment rooms
  • Safe and calming sedation 

Does your child have a favorite toy or stuffed animal? We encourage parents to let their child bring along a beloved toy from home so they can feel even more at ease during their visit. In every treatment room, we offer headphones and televisions so your child can enjoy entertainment and distraction. More than anything, we want your child to feel excited about visiting the dentist and show them that caring for their smiles can be fun. For children with special needs and sensory sensitivities, we have private treatment rooms with soft lighting, so they have a safe, calming space to receive our gentle and mindful care.

Featured Blog Posts - Pediatric Dentistry

June 17, 2025

Top 5 Reasons Your Child Has Sensitive Teeth (And What You Can Do)

little girl at lake near Highland Ranch, CO

As a parent, seeing your child in pain is difficult. You’ve looked in their mouth and don’t see anything, and they just had a check-up. So what could be causing their tooth sensitivity?

Tooth sensitivity in children is more common than you might think and can stem from various causes. Our ...

May 16, 2025

Smile Starts Here: Essential Oral Care for Your Baby's Gums and First Teeth

father with son after visiting the pediatric dentist in highlands ranch

Even before your baby flashes that very first toothy grin, their smile is already hard at work behind the scenes. As your trusted pediatric dentist in Highlands Ranch, we love helping families build strong dental habits from the very beginning. Here’s your baby-friendly guide to caring for those tiny ...

April 21, 2025

Keeping Little Smiles Bright: Cavity Prevention for Children

child playing after pediatric teeth cleaning

Every parent wants to see their child smile with joyous confidence. But cavity prevention in children isn’t just about avoiding sugar—though that certainly helps!

Ensuring that your kids have healthy and radiant smiles requires a preventive dentistry plan. And any plan designed to keep your young ones’ little teeth healthy ...

From Baby Teeth to Braces and Everything in Between

child at dental appointment in highlands ranchProfessional dental care helps pave the way for a lifetime of healthy smiles. Dr. Jon will see patients every six months for checkups, and he offers a comprehensive range of services customized to fit your child’s needs. We're a pediatric dentist in Castle Pines, with offices in Highlands Ranch and Castle Pines. We offer the following services:

Sierk Children’s Dentistry in Castle Pines believes that working as a team with children and parents will make the best dental experience for each child. We take the time to explain the benefits of early treatment, the importance of preventive care, and the value of practicing good oral hygiene at home as a family. When we work as a team, we can achieve our common goal of helping your child achieve their healthiest smile! 

Ready to Schedule Your Child’s Next Visit?

At Sierk Children's Dentistry, little smiles are a BIG deal. We go the extra mile to help make sure your child’s smile stays strong, healthy, and beautiful. From children to young adults, we love helping our patients understand the importance of oral health so they can enjoy a lifetime of healthy smiles. Whatever your family needs, we are here for you!

To schedule your child's next dental exam in Highlands Ranch or Castle Pines, please give us a call at (303) 865-4066. Our dental offices are conveniently located in Douglas County, CO, and are easily accessible from Lone Tree, Roxborough, Sterling Ranch, and The Canyons.

Pediatric Dentistry Technology

TVs & Headphones

Sierk Children's Dentistry is a pediatric dental office unlike any other. We truly care for and cater to the unique needs of every single patient. It's always our goal to make sure our team is welcoming, kind, and engaging and that our office is fun, relaxing, and inviting.

To keep our patients entertained and relaxed, we offer headphones and have TVs in each of our treatment areas. We are happy to turn on the TV so they can enjoy their time in the dental chair while we work on their beautiful smiles. Our headphones also allow our young patients to listen to music or even block out noise during their appointment, so they can enjoy a more tranquil experience. 

We Believe the Tooth Fairy Is Kind of a Big Deal
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