What are the three angles classifications 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 angle of classification?

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 are the different classification of malocclusion?

The three classes according to Angle’s classification are as follows: Normal occlusion: The mesiobuccal cusp of the upper first molar occludes with the buccal groove of the lower first molar. Class I malocclusion: Same as normal occlusion but characterized by crowding, rotations, and other positional irregularities.

What is angle’s classification for orthodontic malocclusions?

Angle’s classification is a method used to describe orthodontic malocclusions by looking at the molar relationship and consists of three classes.

Where is the line of occlusion in a canine?

BSI – Class I Canine – Class I Molar – Class I 7. The line of occlusion – is a smooth (catenary) curve passing through the central fossa of each upper molar and across the cingulum of the upper canine and incisor teeth.

What are the two types of malocclusion in dogs?

Malocclusion refers to abnormal tooth alignment. There are two types of malocclusion: skeletal and dental. A skeletal malocclusion results when an abnormal jaw length creates a malalignment of the teeth.

Is there a normal line of occlusion in Class 2 malocclusion?

CLASS II MALOCCLUSION Mesiobuccal cusp of upper first permanent molar occludes mesial to the buccal develipmental groove of the lower first permanent molar. Line of occlusion not specified. There may be normal or abnormal line of occlusion.