adjustable axis face-bow的用法和样例：
- Adjustable axis is designed to install and adjust wasily &precisely.
- Objective:To evaluate the influence on root resorption after distalizing molars with face bow.
- PURPOSE: To design a three-dimensional face bow and use it in pre-diagnosis, guiding reduction in operation and post-operative evaluation of zygomatic fractures.
- Fan-like cleavage means cleavages at axis faces occurring in the core of a fold, which spreads in fan like and shaped like branches of trees or straight with good symmetrical patterns.
- Keywords Fixed palatal Arch（FPA）;face bow;anchorage;