Types of malocclusion

Types of malocclusion
The most popular classification of dental malocclusion is that described by Angle, and which continues to be used today. This is based on the relationship between the first permanent molars, giving rise to the following distinction: – Class I malocclusion, in which the molar relationship is normal and dental alterations are present, such as crowding, diastema, open bite, anterior or posterior cross bite, or individual tooth malposition. – Class II malocclusion, in which the lower first molar occludes distally to the upper tooth. This, in turn, is classified into division I, in which the arches are narrow, with marked prominence of the upper incisors and anterior open bite; and division II, in which the bite usually shows marked crossings, labioversion of the lateral incisors and linguoversion of the central incisors; this is usually associated with large, square arches. – Finally, in class III malocclusion, the lower first molar occludes mesially to the upper tooth, and anterior cross bite is observed (40)(42)

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