The effects of orthopedic forces on the craniofacial complex utilizing cervical and headgear appliances.
The effects of orthopedic forces on the craniofacial complex utilizing cervical and headgear appliances.
复制标题
利用颈椎和头套矫治器对颅面复合体进行矫形力的影响。
DOI：
10.1016/s0002-9416(76)80026-7
复制
发表时间：
1976
期刊：
影响因子：
--
通讯作者：
J. Davis
中科院分区：
文献类型：
--
作者：
S. Chaconas;A. Caputo;J. Davis
1.利用双折射材料制作了人体颅骨的三维解剖模型，并进行了光弹性分析。在应用高拉力和颈口外牵引的过程中，通过光弹性技术，在模型内显示应力。2.口外支抗影响上颌磨牙的位置和牙槽骨的发育。颈式头盔对上颌磨牙的倾斜作用比高拉力头盔大得多。接受检查的两种矫治器都可能产生应力，这些应力可能会传递到远端的颌面部缝合。与高牵引相反，颈部牵引一般强调更多的区域和更大的程度。4.蝶骨翼板、颧弓、上颌骨与泪骨、筛骨交界处及上颌牙齿均受两种头盔的影响。5.只有颈椎牵引在上颌骨额突和颧额缝处产生应力。6.有两个以前没有报道过的发现：第一，颈椎牵引往往会打开后部的腭部。第二，高牵引力在左、右上颌骨交界处前鼻棘下方产生压应力。
1. A three-dimensional anatomic model of a human skull was produced with birefringent materials for photoelastic analysis. By means of photoelastic techniques during application of high-pull and cervical extraoral traction, stresses were visualized within the model. 2. Extraoral anchorage affected the position of the maxillary molar and its resulting alveolar development. Cervical headgear had a much greater tipping effect on the maxillary molar than did the high-pull headgear. Both appliances examined could produce stresses which may be transmitted to distant eraniofacial sutures. As opposed to high-pull traction, cervical pull in general stressed more areas and to a much greater degree. 4. The pterygoid plates of the sphenoid bone, the zygomatic arches, the junction of the maxilla with the lacrimal bone and the ethmoid, and the maxillary teeth were affected by both types of headgear. 5. Only cervical traction produced stresses at the frontal process of the maxilla and the Zygomaticofrontal suture. 6. There were two findings which had not been previously reported: First, cervical traction tended to open the palate in the posterior region. Second, high-pull traction produced compressive stresses at the junction of the right and left maxillae inferior to the anterior nasal spine.