What is Phase 1 orthodontic treatment?
It is the first phase of a two-phase or multiphase orthodontic treatment process to improve function and the appearance of your child’s teeth. Phase I treatment incorporates principles of both dentofacial orthopedics (altering habits, muscle, and bony relationships) and orthodontics (movement of teeth).
Not all 4-10 year old children with tooth malpositions require a two phase treatment approach. Your orthodontist will discuss the advantages and disadvantages of a multiphase treatment program for your child. Common Phase I case types are shown below.
- Younger patients usually adapt more easily to orthopedic appliance requirements and tissue response is better.
- Early improvement of the oral environment enhances self-esteem.
- Early intervention improves long-term stability.
- Patient will spend less time in full braces (Phase II treatment) during their teenage years.
“Before and after “ photos below are patients who were treated by Drs. Musich and Busch.
Open bite and contributing habits

- Finger or thumb habits, “Bite” habits, mouth breathing habits, tongue habits, can all have a negative impact on dentofacial development.
Small lower jaw with upper protrusion
![Lower Jaw Deficiency [Before and After Photos]](/Websites/born2smile/images/lower_jaw.jpg)
Referred to as Class II problems by dental professionals.
- Phase I treatment reduces severity of the skeletal problem, improves chewing function and enhances facial appearance and self-esteem.
- Moving the teeth to their proper position can also prevent “sport trauma” to front teeth and subsequent dental injuries.
Upper jaw deficiency with crossbite
![Upper Jaw Deficiency [Before and After Photos]](/Websites/born2smile/images/upper_jaw.jpg)
Referred to as Class III problems by dental professionals.
- These growth problems should be treated early to minimize trauma, avoid damage to the teeth that are out of place, and to improve facial balance.
Jaw constriction problems
![Palate Constriction & Crowding [Before and After Photos]](/Websites/born2smile/images/palate_constriction.jpg)
- When the upper jaw is too narrow, the molars and “eye” teeth can grow into a reduced perimeter resulting in crowding of the teeth.
- This problem is best corrected before the upper jaw growth is complete.
There are several other types of orthodontic problems that benefit from Phase I intervention. After examining your child, your orthodontist can advise you about the appropriateness of Phase I treatment for your child.