Classification of Face and Teeth

Classification of Teeth

When is the best time to begin orthodontics?

Though an orthodontist can enhance a smile at any age, there is an optimal time period to begin treatment. Beginning treatment at this time ensures the greatest result and the least amount of time and expense. The American Association of Orthodontists recommends that the initial orthodontic evaluation should occur at the first sign of orthodontic problems or no later than age 7. At this early age, orthodontic treatment may not be necessary, but vigilant examination can anticipate the most advantageous time to begin treatment.

What are the benefits of early orthodontic evaluation?

Early evaluation provides both timely detection of problems and greater opportunity for more effective treatment. Prudent intervention guides growth and development, preventing serious problems later. When orthodontic intervention is not necessary, an orthodontist can carefully monitor growth and development and begin treatment when it is ideal.

Why is age 7 considered the optimal time for screening?

By the age of 7, the first adult molars erupt, establishing the back bite. During this time, an orthodontist can evaluate front-to-back and side-to-side tooth relationships. For example, the presence of erupting incisors can indicate possible overbite, open bite, crowding or gummy smiles. Timely screening increases the chances for an incredible smile.

What are the advantages of interceptive treatment?

Some of the most direct results of interceptive treatment are:

  • Creating room for crowded, erupting teeth
  • Creating facial symmetry through influencing jaw growth
  • Reducing the risk of trauma to protruding front teeth
  • Preserving space for unerupted teeth
  • Reducing the need for tooth removal
  • Reducing treatment time with braces

Are you a candidate for orthodontic treatment?

Orthodontics is not merely for improving the aesthetics of the smile; orthodontic treatment improves bad bites (malocclusions). Malocclusions occur as a result of tooth or jaw misalignment. Malocclusions affect the way you smile, chew, clean your teeth or feel about your smile.

Why should malocclusions be treated?

According to studies by the American Association of Orthodontists, untreated malocclusions can result in a variety of problems. Crowded teeth are more difficult to properly brush and floss, which may contribute to tooth decay and/or gum disease. Protruding teeth are more susceptible to accidental chipping. Crossbites can result in unfavorable growth and uneven tooth wear. Openbites can result in tongue-thrusting habits and speech impediments. Ultimately, orthodontics does more than make a pretty smile – it creates a healthier you.

Classification of Teeth Overview

For a brief overview of the classification of teeth, please click on the image below. It will launch our educational module in a separate window that may answer some of your questions about the classifications of teeth.

Classification of Teeth Overview
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Class 1:
Class I is a normal relationship between the upper teeth, lower teeth and jaws or balanced bite.

Class I Normal

Class I Crowding

Class I Spacing

Class II:

Class II Division I
Division 1

Class II Division II
Division 2

Class III:

Class III Skeleton

Class III Dental

Classification of Face

It is not sufficient to categorize orthodontic malocclusions on the basis of a classification of the teeth alone. The relationship with other craniofacial structures must also be taken into consideration.

Class 1:

Maxillary-Mandibular Dental Protrusion — teeth
Maxillary-Mandibular Dental Protrusion — teeth:

Maxillary-Mandibular Dental Retrusion — teeth
Maxillary-Mandibular Dental Retrusion — teeth:.

Class 2:

Maxillary Dental Protrusion — teeth
Maxillary Dental Protrusion — teeth:

Mandibular Retrognathism — jaws
Mandibular Retrognathism — jaws:

Maxillary Dental Protrusion — teeth & Mandibular Retrognathism — jaws
Maxillary Dental Protrusion — teeth & Mandibular Retrognathism — jaws:

Class 3:

Mandibular Dental Protrusion — teeth
Mandibular Dental Protrusion — teeth:

Mandibular Prognathism — jaws: