Head orientation is a key factor in cephalometric and facial analysis for orthodontic and orthognathic surgery treatment planning, because it influences the anteroposterior perception of the maxillomandibular complex and may result in an incorrect diagnosis.1
A.L. Barbera, W.J. Sampson, G.C. Townsend
Variation in natural head position and establishing corrected head position
Homo, 65 (3) (2014), pp. 187-200
Consequently, because the maxillomandibular relation is one of the defining factors of head positioning, NHO should theoretically change after orthognathic surgery, and even more when counterclockwise (CCW) rotational movements are performed, due to its effect on the accommodation of the head on the cervical column.11, 12
Change in cranio-cervical angulation following orthognathic surgery
Eur J Orthod, 27 (3) (2005), pp. 268-273
Impact of orthognathic surgery on the body posture
Gait Posture, 67 (2019), pp. 25-30
Needless to say, both treating orthodontists and surgeons should use the same reference plane in order to use a common terminology for treatment planning, and therefore align
Although head and neck posture changes after orthognathic surgery have been widely reported in the literature,30, 31 our study has demonstrated that CCW rotation of the maxillomandibular complex is significantly related to FH-NHO° changes (P = 0.006) (Fig. 5), which suggests that occlusal plane changes have an impact on the cranio-cervical posture.11
https://www.sciencedirect.com/science/article/pii/S0901502721000527
Variation between natural head orientation and Frankfort horizontal plane in ort…
이 글은 네이버 블로그에서 가져온 글입니다. 원문: blog.naver.com/surgeon
답글 남기기