Dentition analysis

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Dentition analyses are systems of tooth and jaw measurement used in orthodontics to understand arch space and predict any malocclusion (mal-alignment of the teeth and the bite).[1] Example systems of dentition analysis are listed below.

Permanent dentition (adult teeth) analysis

Mixed dentition analysis

Dental arch analysis

  • Intermolar Width - It is the distance between the mesiobuccal cusp tip points of the first permanent molars
  • Intercanine Width - It is the distance between the tip of the cusp from canine to canine.
  • Arch Length - It is the distance from the line perpendicular to the mesiobuccal cusp tips of the first permanent molars to the midpoint between the mesioincisal points of the central incisors.
  • Arch Perimeter - It is the distance from mesial contact of a permanent molar on one side to the mesial contact of permanent molar on the other side, with the line connecting the buccal/incisor tip points in the intervening teeth.



  1. ^ Ngan, P. "Management of space problems in the primary and mixed dentitions". Journal of American Dental Association. 
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