What is the classification of occlusion?

Classification of the bite (occlusion) is divided into three main categories: Class I, II and III. This classification refers to the position of the first molars and the way in which the upper ones fit together with the lower ones.

What is the difference between malocclusion and occlusion?

Occlusion is determined by the shape of the head, jaw length and width and the position of the teeth. By definition, malocclusion is an abnormality in the position of the teeth.

How do you classify malocclusion?

Orthodontic malocclusions are classified based upon the position of the teeth and the relationship of the jaw bones. There are three basic classifications of malocclusions: Class I, Class II and Class III.

What are the 3 types of malocclusion?

Angle further classifies this malocclusion into three types: Type I: The alignment of the teeth is good in general, but there is an abnormal shape to the arch. Type II: The upper front teeth alignment is fine, but the lower front teeth lean toward the tongue. Type III: The upper arch is underdeveloped.

How many types of malocclusion are there?

There are three classes of malocclusion. The classes are based on your bite and whether your upper or lower teeth are misaligned: Class 1 malocclusion is the most common. The bite is normal, but the upper teeth slightly overlap the lower teeth.

Why do we classify malocclusion?

The malocclusion classification is based on the relationship of the mesiobuccal cusp of the maxillary first molar and the buccal groove of the mandibular first molar. If this molar relationship exists, then the teeth can align into normal occlusion.

What is class 3 malocclusion?

Class III malocclusion represents a growth-related dentofacial deformity with mandibular prognathism in relation to the maxilla and/or cranial base. Its prevalence varies greatly among and within different races, ethnic groups, and geographic regions studied.

What is the main basis of angle in his classification of malocclusion?

Angle in 1890, the Angle Classifications are based on the relationship of the buccal groove of the mandibular first permanent molar and the mesiobuccal cusp of the maxillary first permanent molar. This classification is considered to be one of the most commonly used methods for identifying misalignment for molars.

What is class 3 malocclusion?

Class III malocclusion represents a growth-related dentofacial deformity with mandibular prognathism in relation to the maxilla and/or cranial base. Its prevalence varies greatly among and within different races, ethnic groups, and geographic regions studied.

What are the different type of malocclusion and their type and division?

There are three types of malocclusions under Class1. Type 1 is when both upper and lower teeth lean toward the tongue. Type 2 is when the upper teeth protrude and the lower teeth angle toward the tongue. Type 3 is when the upper front teeth lean toward the tongue and the teeth are crowded.

What is an example of a malocclusion?

One example is the teeth having too much or too little room to erupt, which results in them drifting out of place over time. Some other common causes of malocclusion include: tooth loss. prolonged use of a pacifier.

What is a Class 2 Division 1 malocclusion?

Division 1: A class 2 division 1 malocclusion means that the molars are in the class 2 position and the anterior teeth are protruding. People with this type of malocclusion often experience a slackening of the lips. The lower lip rests behind the upper teeth, accentuating the discrepancy between the jaws.

What is the difference between Class 2 Division 1 and 2?

The class II division 2 differs from division 1 by the following characteristic: the discrepancy between the upper and lower teeth does not match the discrepancy between the upper and lower teeth where the molars and canines are located (red and blue arrows).

What is the angle classification?

Angles are classified according to their measures as follow: An acute angle is an angle whose measure is between 0∘ and 90∘. A right angle is an angle whose measure is 90∘. We often use a little square to indicate a right angle. An obtuse angle is an angle whose measure is between 90∘ and 180∘.