International orthodontic associations recommend that children be evaluated by an orthodontist by the age of 7. At this age, a child’s mouth contains both baby teeth and newly emerging permanent teeth. This “mixed dentition” period allows the orthodontist to notice jaw development, tooth alignment, and potential issues at an early stage.
An examination at this age doesn’t necessarily mean treatment will begin right away. In most cases, the goal is to monitor jaw and tooth development and intervene at the right time if needed.
Problems an Early Checkup Can Reveal
An orthodontist can identify the following issues early on in a child around age 7:
- Crossbite (misalignment between the upper and lower jaw, either side-to-side or front-to-back)
- The effect of thumb-sucking habits on jaw development
- Early or late loss of baby teeth
- Insufficient space for permanent teeth (narrow jaw)
- Developmental effects related to mouth breathing habits
- Bite problems that could lead to speech or chewing difficulties
If most of these issues are caught while the jaw is still developing, they can often be guided with much simpler methods compared to full braces or retainer treatment later on.
What Is Early Intervention (Phase 1 Treatment)?
In some children, a preliminary treatment phase may be started before all permanent teeth have erupted, usually carried out with jaw expander appliances or simple removable retainers. The purpose of this approach is to:
- Guide the development of the jawbone,
- Create enough space for permanent teeth,
- Reduce the likelihood of needing tooth extraction later in life,
- Shorten the duration of the second-phase treatment done at an older age.
Not every child needs early intervention — this depends entirely on the findings from the examination. For this reason, early diagnosis is also valuable in preventing unnecessary treatment.
Signs Parents Should Watch For
In addition to routine dental checkups, parents who notice the following are advised to schedule an appointment with an orthodontist:
- Jaws that don’t appear symmetrical
- Baby teeth falling out earlier or later than normal
- Difficulty chewing or biting
- Mouth breathing or the mouth staying open frequently
- Thumb-sucking habits continuing past age 4-5
- Noticeable crookedness, gaps, or crowding in the teeth
