Basic Principles for Intrusions & Extrusions For basic principles or intrusions and extrusions, refer to the following: 1. A tooth that’s not upright will not extrude or intrude easily. 2. Place a horizontal engager and tilt it upright first. 3. Make sure there is adequate interproximal space; use IPR where appropriate to make space and prevent collisions. 4. Then extrude or intrude […]
Category Archives: Difficult movements
For information regarding Auxiliaries and Clear Aligner treatment, refer to the following steps: NOTE: The term “auxiliaries” as used in orthodontic treatment with clear aligners refers to an entity or item that may be used in conjunction with clear aligners to enhance the movement of, or effect a change in, the teeth or skeletal components. Some […]
Definition Extruding with auxiliaries is a technique used to extrude a tooth that has not erupted as desired to create an aesthetically aligned smile. Extrusions are one of the more difficult movements to achieve with clear aligners. It is important to watch for extrusions not occurring with your cases, as this can be one of the reasons […]
Definition Rotating is when you turn a tooth around its long axis. One method to rotate teeth is with the use of auxiliaries, such as buttons and elastics. One button is placed on the tooth to be rotated while another button is placed on an ‘anchor’ tooth. The goal is to provide rotational correction of a tooth without […]
Definition Rotating is when you turn a tooth around its long axis. Uses Rotating a tooth can be difficult. Various factors can get in the way or the tooth may just not want to turn. Crowding, not enough pressure, patient non-compliance and degree of rotation needed, can all affect treatment progression and results. How to help Tooth […]