Activators are suitable for which type of divergence?

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Multiple Choice

Activators are suitable for which type of divergence?

Explanation:
Activators work by posturing the mandible forward to guide growth, and the vertical effect of that forward posturing depends on the patient’s vertical pattern. In hypo-divergent (low-angle) individuals, the jaw angle is relatively flat, so forward advancement can occur with only modest vertical change. This allows effective sagittal correction without undesirable increases in facial height. In hyper-divergent (high-angle) patients, the same forward positioning tends to increase vertical dimension, which can worsen a long-face/open-bite pattern, making activators less suitable. So, activators are best suited for low-angle divergence.

Activators work by posturing the mandible forward to guide growth, and the vertical effect of that forward posturing depends on the patient’s vertical pattern. In hypo-divergent (low-angle) individuals, the jaw angle is relatively flat, so forward advancement can occur with only modest vertical change. This allows effective sagittal correction without undesirable increases in facial height. In hyper-divergent (high-angle) patients, the same forward positioning tends to increase vertical dimension, which can worsen a long-face/open-bite pattern, making activators less suitable. So, activators are best suited for low-angle divergence.

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