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本实验采用三维光弹技术对头帽颏兜的作用机理进行研究。结果显示，应力高度集中在下颌骨生长发育的重要中心髁突颈和下颌升支后缘；在下颌骨颊舌向切片检测时发现，应力多集中在下颌骨正中及舌侧；主应力方向为从颏兜受力处斜向后上至髁突颈，正与下颌生长方向相反。
The experiment uses three-dimensional photoelastic technology on the mechanism of the cap chin pocket study. The results show that the stress is highly concentrated in the mandibular growth and development of the important condylar neck and mandibular ascending trailing edge; in the mandibular buccal and tongue biopsy revealed that the stress concentration in the mandible in the middle and lingual; the main stress direction From the chinburi stress at the back up to the condyle neck, and the growth direction of the jaw opposite.