What type of movement is achieved when the center of rotation is located between the center of resistance and apex?

When the center of rotation is positioned between the center of resistance and the apex of a tooth, it results in a movement known as uncontrolled tipping. This occurs because the force applied to the tooth causes the crown to rotate around a point in a manner where the root moves in a different direction than the crown. In this situation, the effect of the force is not evenly distributed, leading to a tipping motion that does not maintain the desired alignment or positional change of the tooth.

In contrast, controlled tipping would require a different positioning of the center of rotation, resulting in a rotational movement that allows for more precise adjustments. Translation, on the other hand, involves the movement of the entire tooth in a more linear fashion without tipping; this is typically accomplished when the center of rotation aligns with the center of resistance. Reverse tipping describes a scenario where the crown moves in the opposite direction to what would normally occur in tipping movements. Understanding these distinctions helps clarify why uncontrolled tipping is characterized by the specific placement of the center of rotation noted in the question.