What type of movement occurs when the crown of the tooth moves more than the root?

The type of movement where the crown of the tooth moves more than the root is referred to as controlled tipping. This movement occurs when a force is applied in a manner that allows the crown to tilt while the root remains relatively stationary, resulting in a precise and manageable positioning of the tooth.

This process ensures that adjustments to the tooth's position are made thoughtfully and with attention to the surrounding structures, which is crucial for maintaining periodontal health and achieving desired orthodontic outcomes. Controlled tipping is often utilized when a specific or moderate relocation of the crown is required without significantly altering the root's position in the alveolar bone.

In contrast, uncontrolled tipping would involve a more abrupt or unintended movement of both the crown and root, leading to less predictable results. Translation is associated with a simultaneous movement of both the crown and root in the same direction, while reverse tipping entails movement that shifts the root more than the crown. Understanding these distinctions helps in applying the appropriate forces and mechanics during orthodontic treatment.