Molar Anchorage in Invisalign｜【Chris Chang Ortho】CC774

This presentation compared the difference in anchorage loss between L5 and L4 extraction in aligner therapy and the former is more than the latter. It also found power ridge and attachment design are insufficient for maintaining incisor and canine control. Anchorage preparation may decrease lower molar anchorage loss. 本篇報告在比較隱形矯正器治療時的anchorage loss情況，拔除L5相較L4會造成更大的anchorage loss。此外，power ridge 和 attachment design 無法有效維持前牙和犬齒的角度控制。Anchorage preparation可能可以降低後牙的molar anchorage loss。