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Class II Div. 1 Malocclusion

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Questions and Answers

What is the primary influence on the soft tissue factor in a Class II div.1 malocclusion?

Lip and tongue activity

Skeletal pattern (correct)

Cheek pressure

Upper incisor prominence

In a Class II div.1 malocclusion, what is the effect of incompetent lips on the patient's attempts to achieve an anterior oral seal?

The patient will have a lip-to-lip seal

The patient will not be able to achieve an anterior oral seal

The patient will find alternative ways to achieve an anterior oral seal (correct)

The patient will have a lip-to-tongue seal

What is the effect of circumoral muscular activity on the Class II div.1 incisor relationship?

It has no effect on the skeletal pattern

It exacerbates the skeletal pattern

It moderates the effect of the skeletal pattern (correct)

It completely corrects the skeletal pattern

What is the relationship between the underlying skeletal discrepancy and the difficulty of treatment?

The more significant the skeletal discrepancy, the more difficult it is to treat Signup and view all the answers

What is the role of the soft tissues in a Class II div.1 malocclusion?

They are an important modifying factor Signup and view all the answers

What is the outcome of achieving lip-to-lip contact in individuals with a Class II skeletal pattern?

Reducing the overjet Signup and view all the answers

How does the mandible posture in individuals with a Class II skeletal pattern when the lips meet at rest?

It postures forwards to allow the lips to meet Signup and view all the answers

What is the effect of the lower lip being drawn up behind the upper incisors when lip-to-lip contact is not possible?

Retroclination of the lower labial segment and/or proclination of the upper incisors Signup and view all the answers

What is the consequence of the tongue habitually coming forward to contact the lower lip?

Proclination of the lower incisors Signup and view all the answers

What is often associated with soft tissue behavior characterized by the tongue coming forward to contact the lower lip?

Incompetent lips and/or an increased vertical skeletal proportion Signup and view all the answers