Interceptive (Phase I) Orthodontic Treatment: What Parents Need to Know

If your child is still losing baby teeth but your dentist has mentioned orthodontics, you might be wondering: “How can my child need braces already?” or “What is Phase I treatment?”

At Othman Orthodontics, with offices in Lombard, IL and Orland Park, IL, we provide interceptive orthodontic treatment (also called Phase I treatment) to guide the growth of young children’s teeth and jaws. Early care isn’t about “getting braces twice” — it’s about solving certain problems at the right time, when a child is still growing.

In this guide, we’ll explain:

• What interceptive / Phase I treatment is
• When the American Association of Orthodontists recommends a first check-up
• Common problems early treatment can address
• Types of appliances used, including expanders
• How Phase I relates to Phase II (full braces or Invisalign)
• What parents in Lombard and Orland Park can expect

What Is Interceptive (Phase I) Orthodontic Treatment?

Interceptive orthodontic treatment is early treatment performed while your child still has a mix of baby and permanent teeth (usually between ages 7–10). The goal is to:

• Guide jaw growth into a healthier pattern
• Create space for permanent teeth to erupt properly
• Correct certain bite problems before they get worse
• Address harmful oral habits that affect growth and alignment

Phase I treatment is not always about achieving the “final” perfect smile right away. Instead, it sets a strong foundation so that later treatment (Phase II braces or Invisalign) can be shorter, simpler and more stable.

When Should My Child First See an Orthodontist?

The American Association of Orthodontists recommends that every child have an orthodontic evaluation by age 7. At that age:

• Your child has a mix of baby and permanent teeth.
• We can see how the jaws are growing and how the bite is developing.
• We can spot problems that might not be obvious just by “looking.”

Many children we see in our Lombard and Orland Park offices do not need early treatment. We simply monitor their growth every 6–12 months and start full braces or Invisalign when the timing is right.

But for some children, Phase I treatment at the right time can make a big difference.

What Problems Can Phase I Treatment Help With?

Interceptive treatment is especially helpful for:

1. Crossbites

A crossbite happens when upper teeth bite inside lower teeth. This can occur in the front or back teeth and may cause:

• Jaw shifting to one side
• Uneven wear on certain teeth
• Asymmetry in jaw growth

A palatal expander in a growing child can help widen the upper arch and correct many crossbites more easily than in later years.

2. Severe Crowding

When there isn’t enough room for permanent teeth, they can:

• Overlap significantly
• Twist or erupt in very crooked positions
• Become impacted (stuck beneath the gums)

Early treatment can:

• Use expanders or partial braces to create space
• Guide eruption so teeth come in more naturally
• Reduce the chance of needing extractions later

3. Large Overjets (“Buck Teeth”)

When upper front teeth stick out far ahead of lower teeth, they are more prone to trauma and can affect self-esteem. Early treatment can:

• Bring protruding teeth into safer positions
• Improve lip closure and facial balance

4. Underbites

An underbite occurs when the lower front teeth or jaw sit ahead of the upper teeth. In growing children, we may be able to:

• Guide upper jaw growth forward
• Reduce the severity of the underbite
• Improve long-term jaw balance

5. Open Bites and Habits

An open bite is when upper and lower front teeth don’t touch when biting down. It can be related to:

• Thumb or finger sucking
• Prolonged pacifier use
• Tongue thrusting

Phase I treatment may include habit appliances and early braces to help close the bite and support normal function.

What Appliances Are Used in Phase I Treatment?

Depending on your child’s needs, interceptive treatment may include:

Palatal Expanders

A palatal expander is attached to the upper molars and gently widens the upper jaw over time. This can:

• Correct crossbites
• Create space for crowded teeth
• Improve arch form

Partial Braces

Short-term braces on the front teeth can:

• Align severely crooked or rotated teeth
• Correct certain bite relationships
• Improve esthetics and confidence early on

Space Maintainers

If a baby tooth is lost early, a space maintainer can preserve room for the permanent tooth, preventing shifting that could cause problems later.

Habit Appliances

Specialized appliances can help discourage thumb/finger sucking or tongue habits that interfere with proper dental and jaw development.

Early Aligner-Style Options

In select cases, especially for older children, we may use aligner-style options similar to Invisalign Phase I to help guide tooth position during early treatment.

How Long Does Phase I Treatment Last?

The length of interceptive treatment varies, but many Phase I plans last:

• 6–12 months for simpler expansion or habit correction
• 12–18 months for more complex early issues

After Phase I, your child enters a resting phase:

• We monitor growth and eruption of permanent teeth.
• We may use simple retainers to maintain certain corrections.
• We plan for Phase II treatment (full braces or Invisalign) when all or most permanent teeth have erupted.

What Is Phase II Treatment?

Phase II treatment is the comprehensive phase most people think of as “braces”:

• Usually begins in the early to mid-teen years.
• Uses full braces or Invisalign Teen/adult Invisalign.
• Fine-tunes alignment and bite for the final, long-term result.

Children who had effective Phase I treatment often:

• Need less complex Phase II treatment.
• Spend less total time in full braces.
• Have more stable, predictable outcomes.

Does Every Child Need Interceptive Treatment?

Definitely not. Many children we evaluate in Lombard and Orland Park:

• Are simply monitored until they are ready for one comprehensive treatment phase.
• Do not need early appliances, expanders or partial braces.

The purpose of an early evaluation is to:

• CATCH problems early if they exist.
• REASSURE you when everything is developing normally.

Interceptive Orthodontics in Lombard & Orland Park, IL

Lombard Office

Our Lombard office provides interceptive orthodontic treatment and orthodontics for children for families in Lombard, Downers Grove, Elmhurst, Wheaton, Villa Park, Oak Brook, Oakbrook Terrace, Hinsdale, Westmont, Lisle, Naperville and nearby communities.

Orland Park Office

Our Orland Park office offers the same early treatment expertise to families in Orland Park, Tinley Park, Palos Heights, Palos Park, Homer Glen, Oak Forest, Mokena, Frankfort, New Lenox, Lockport.

Schedule an Early Orthodontic Evaluation

If your child is around age 7—or you’ve noticed bite, spacing or habit concerns—it’s the perfect time to schedule a visit.

Contact Othman Orthodontics to request an orthodontic consultation in Lombard, IL or an orthodontic consultation in Orland Park, IL.

We’ll evaluate your child’s teeth, jaws and growth pattern, explain whether interceptive (Phase I) orthodontic treatment is recommended, and help you plan the right steps for a healthy, confident smile—now and in the teen years ahead.