Angle used which relationship to divide Class II into two divisions?

Angle used which relationship to divide Class II into two divisions?

• A. Canine relationship
• B. Incisors relationship
• C. First molar relationship
• D. Temporary molars relationship

Answer: (B)

Angle’s subdivision of Class II comes from how the front teeth relate to each other. Although Class II is defined by the distal position of the upper first molar to the lower first molar, the two divisions describe the position of the maxillary incisors relative to the mandibular incisors. If the upper incisors are proclined, it’s Division I; if the upper central incisors are retroclined (often with a deep bite), it’s Division II. The canines or molars alone don’t separate the divisions, and deciduous teeth aren’t part of this adult classification.

Angle’s subdivision of Class II comes from how the front teeth relate to each other. Although Class II is defined by the distal position of the upper first molar to the lower first molar, the two divisions describe the position of the maxillary incisors relative to the mandibular incisors. If the upper incisors are proclined, it’s Division I; if the upper central incisors are retroclined (often with a deep bite), it’s Division II. The canines or molars alone don’t separate the divisions, and deciduous teeth aren’t part of this adult classification.