Two-phase orthodontic treatment is a plan that treats a child’s smile at two different stages as they grow.
The first phase may begin while a child still has a mix of baby teeth and permanent teeth, with the goal of guiding jaw growth, improving your bite, reducing crowding, or making room for permanent teeth. After a period of monitoring, a second phase may begin once most permanent teeth have come in.
Not every child needs two-phase treatment, but for some, starting earlier can make certain problems easier to treat.
How Does Two-Phase Orthodontic Treatment Work?
Phase One, also known as early or interceptive treatment, addresses concerns that may be easier to treat while a child’s teeth and jaws are still developing:
- A crossbite, underbite, or significant overbite
- A narrow upper jaw
- Severe crowding
- Limited space for permanent teeth
- Upper teeth that extend far forward
- Jaws that are not growing evenly
- Difficulty biting or chewing
Treatment may include:
- A palatal expander: An appliance that gently widens the upper jaw to create more space and improve how the upper and lower teeth fit together.
- Limited braces: Braces placed on only some teeth to address a specific concern rather than straighten the entire smile.
- A growth-guidance appliance: An appliance that helps guide jaw position and development as a child grows.
The goal of Phase One is not always to fully straighten the teeth or eliminate the need for future treatment. Instead, it helps create a healthier foundation as the child continues to grow.
After Phase One, treatment pauses while the remaining permanent teeth come in. During this time, the orthodontist monitors jaw growth, tooth position, spacing, and bite development.
Phase Two usually begins once most permanent teeth have come in. Braces or clear aligners may then be used to straighten the teeth, improve the bite, and complete treatment.
Frequently Asked Questions About Two-Phase Treatment
When should my child have their first orthodontic evaluation?
Children should generally have their first orthodontic evaluation around age seven. At this age, an orthodontist can check how permanent teeth are coming in, how the jaws are developing, and whether any bite or spacing concerns should be monitored. An early evaluation does not always mean treatment will begin right away. Many children are simply monitored until the timing is right.
How long does the full two-phase treatment process take?
The timeline depends on the child’s growth, treatment needs, and how quickly permanent teeth come in. The full process includes Phase One, a monitoring period, and Phase Two, so it may span several years even though the child is not in active treatment the entire time.
Does my child need to wear a retainer between phases?
Some children may wear a retainer or another appliance to help maintain the progress made during Phase One. Others may not need one. This depends on the treatment completed and how the permanent teeth are developing.
What happens if Phase One treatment is delayed?
The effect of delaying treatment depends on the concern being addressed. Some jaw growth and bite problems may become more difficult to correct after a child finishes growing. An orthodontist can explain whether timing matters for your child’s specific needs.
Supporting Your Child’s Developing Smile
Two-phase orthodontic treatment allows certain tooth, bite, and jaw concerns to be addressed at different stages of a child’s growth.
An orthodontic evaluation with Dr. Dave, Dr. Sonny, or Dr. Brittany can help parents understand how their child’s teeth and jaws are developing and whether treatment may be helpful now or later.
Schedule a consultation at True Image Orthodontics’ Cypress or Spring location to learn whether two-phase orthodontic treatment may be appropriate for your child.