What Is Phase I Orthodontics for Children?

June 29, 2023

Orthodontic treatment done at the appropriate time can ensure an efficient process for getting straighter teeth, especially when seeking orthodontic care for children.

The American Academy of Orthodontics recommends that children be seen by an orthodontist around age seven, which allows orthodontists to intervene before a child’s permanent teeth fully erupt in what’s called Phase I orthodontics [1].

What exactly is Phase I orthodontic treatment, and what does it include? Here we review the basics of Phase I treatment and why it could be an appropriate intervention for your child’s orthodontic therapy.

Phase I Happens Before All the Permanent Teeth Erupt

Orthodontists like to begin Phase I treatment in indicated cases between the ages of six and ten when children have a mix of permanent and baby teeth. Phase I is generally needed for children who have bite and jaw issues in addition to teeth alignment issues.

Although this phase is relatively short, lasting under a year in some cases, it can make a world of difference for children before beginning Phase II treatment in their teenage years [2].

Starting treatment sooner allows your child’s orthodontist to correct jaw development and create space for permanent teeth to erupt.

Phase I orthodontic treatment sets your child up for a successful Phase II because it allows your child’s orthodontist to get an early start on issues that might otherwise require lengthy or extensive treatment.

Orthodontic Problems Where Phase I Treatment Might Be Necessary

Phase I treatment can be used to create room for permanent teeth, fix complex bite problems, such as crossbites and underbites, and move front teeth that stick out to reduce the chance of injury [3]. However, children that have any type of severe bite issues may require Phase I treatment.

Some children needing Phase I orthodontics may have baby teeth preventing their permanent teeth from coming in. Phase I allows proper treatment before teeth need to be pulled so that all your child’s teeth have room to erupt on their own.

Most children will not need two phases of orthodontic treatment, but if your orthodontist recommends it, Phase I can be a critical step in the process of ensuring your child has a functional and beautiful smile.

What to Expect If Your Child Needs Phase I Orthodontics

If your child needs Phase I orthodontics, the treatment typically lasts anywhere from six to 18 months. Your child will not need to begin Phase II immediately after Phase I treatment. Most children have a resting period in which they will wear a retainer as the rest of their permanent teeth erupt.

Once Phase II is ready to begin, your child will have their second set of braces to complete the final treatment. Since Phase I can reduce the need for more complex and invasive treatments such as tooth extractions and surgery, your child’s overall treatment time may be shortened [4].

Does Your Child Need Phase I Orthodontic Treatment?

The only way to know if your child needs Phase I orthodontic treatment is to get a consultation with an experienced orthodontist. While most children won’t need two phases of treatment, Phase I can make a significant difference in your child’s orthodontic care and minimize the need for additional procedures. Ask your child’s orthodontist if your child could benefit from Phase I during their consultation!