Dental The greatest advantage of using extra oral anchorage is that: A More force can be applied B It has a direct reciprocal action on opposing arch C It permits posterior movement of teeth in one arch without disturbing the opposing arch adversely D Any of the above 💡 Explanation The greatest advantage of using extra oral anchorage is that: ✓ Correct Answer: C. It permits posterior movement of teeth in one arch without disturbing the opposing arch adversely