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At what age should a first orthodontic evaluation be done?

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The Canadian Association of Orthodontists (CAO) and the American Association of Orthodontists (AAO) recommend a first orthodontic evaluation as early as 7 years of age for all children.

Why should an evaluation be done at 7 years of age?A first orthodontic consultation is recommended at around 7 years of age

  • The permanent first molars erupt at around 6-7 years of age and they make it possible to establish the posterior occlusion.
  • At this moment, it is already possible to evaluate the relationship between the teeth and the jaws in all 3 dimensions (front-back, width and height) and detect several dental and skeletal problems, as well as functional deviations of the lower jaw.
  • The incisors have begun their eruption and certain problems, such as crowding, dental rotations, closed occlusion (too much overbite between the teeth), an anterior open bite, certain habits and facial asymmetries, can be identified.

Should an intervention be done?

  • An early evaluation does not imply that an intervention is necessary at an early age.
  • For certain people, a timely evaluation may lead to significant improvements if an orthodontic intervention is indicated while for others, the immediate benefit of an early evaluation will be the parents’ peace of mind.
  • Several intervention and interception procedures can be initiated at an early age, which can make it possible to minimize the severity of developing problems.
  • The most severe problems are the only ones for which an orthodontic intervention at an early age will be indicated.

Benefits of an orthodontic intervention done at an early age

For patients for whom an intervention at an early age is indicated, such a preliminary treatment makes it possible:

  • To favorably influence jaw growth;
  • To balance the width of the dental arches;
  • To improve eruption patterns;It is recommended to evaluate the dentition at around 7 years of age
  • To lower the risk of trauma to protrusive upper incisors;
  • To correct oral habits;
  • To improve esthetics and self-esteem;
  • To simplify and/or decrease the duration of a subsequent corrective orthodontic treatment;
  • To minimize the possibility to see permanent teeth become impacted;
  • To improve certain speech problems;
  • To preserve or recuperate the space necessary for the eruption of permanent teeth.


An orthodontic evaluation performed at an early age will probably not avoid the necessity for another intervention later, but it may lead to a simpler and more efficient treatment for patients, as well as reassuring them on their dental condition.

The dentist who refers his/her young patients at the right time is perceived by parents, with reason, as a well-informed practitioner having his/her patients’ well-being at heart. Do not hesitate to ask your general dentist to refer your child to an orthodontist for a first evaluation.

Examples of early orthodontic interventions

Here are a few orthodontic procedures that may be indicated in patients as young as 7 years old:

  • Palatal expansion to enlarge a palate or an upper jaw that is too narrow;
  • Control of finger or thumb sucking habit;
  • Use of a tongue crib in an attempt to stop an atypical or infantile swallowing habit;
  • Serial extractions to help the permanent teeth erupt;
  • Correction of an anterior or posterior crossbite.

Do I need a dentist’s reference to get an orthodontic consultation?

  • NO! Although most people are referred to us by their general dentist, because they often detect problems first, it is not necessary to be directed or “referred” by another health care professional and one can communicate directly with an orthodontist to make a consultation appointment in orthodontics.
  • The general dentist plays an important role in the detection of dental and occlusal problems in children, because he/she sees them often at an early age and can follow the evolution of the dentition throughout their first years. Thus, when he/she detects problems associated with eruption, lack of space, jaw discrepancies or any other anomaly associated with occlusion, he/she can refer the young patient for an orthodontic evaluation.

Radiographs are a crystal ball predicting the future of dental eruption.

Even if no problems seem visible at first sight during a visual examination of your 7-8-year-old child’s dentition, ask your general dentist to refer you to an orthodontist for a first evaluation. Taking a panoramic radiograph at around this age can reveal a lot on your child’s “dental future” and developing occlusion.


At what age do teeth erupt and in which sequence?

To learn about the average age at which teeth erupt and their sequence of eruption, consult this section.


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Comments and/or questions (2)

  1. mem says:

    QUESTION: 6 1/2 year old is a picky eater — loves pizza, pasta, chicken nuggest periodically, sliced apples often, apple juice often, read and butter, garlic bread and not too much more in addition to cookies, hazan daz bars and a few more choclate cake, muffins, pancakes, toaster waffles.
    So what foods of the above and recommended foods with the expansion orthodontic, screw brace; told probably have six months to wear.

    • Dr Jules says:

      It is preferable to avoid the harder foods but in theory, anything can be eaten if it is done carefully and if there is a good oral hygiene.

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