Tyndall D A, Turner S P
University of North Carolina, School of Dentistry, Chapel Hill.
Am J Orthod Dentofacial Orthop. 1990 Feb;97(2):159-67. doi: 10.1016/0889-5406(90)70089-U.
Orthodontic private practitioners and training institutions were surveyed in regard to the various radiographic materials and methods used in their practices and for ascertaining film-ordering patterns for various types of patients. The reasons for the survey were to assess the degree of acceptance of more radiation-efficient imaging systems into orthodontic practice and to add to the data on orthodontic patient selection criteria and radiographic prescription patterns. All orthodontic programs in the United States and Canada were surveyed, along with all of the practicing orthodontists in the state of North Carolina. The response rates were 61% and 55%, respectively. It was found that a majority of practitioners and training institutions used more radiation-efficient rare earth screen systems, but more institutions used prepatient soft-tissue enhancement beam alteration methods, thus sparing thyroid dose. Lateral cephalometric and panoramic films were found to be the most frequently ordered films, and training institutions ordered more supplemental and follow-up radiographs than private practitioners. In general, patients requiring orthognathic surgery generated a greater number and variety of films than other patient types in both surveyed populations.
针对正畸私人执业者和培训机构在其业务中使用的各种放射成像材料和方法，以及确定各类患者的胶片订购模式展开了调查。此次调查的目的是评估正畸业务中对辐射效率更高的成像系统的接受程度，并补充有关正畸患者选择标准和放射成像处方模式的数据。对美国和加拿大的所有正畸项目，以及北卡罗来纳州的所有执业正畸医生进行了调查。回复率分别为61%和55%。结果发现，大多数执业者和培训机构使用了辐射效率更高的稀土屏系统，但更多机构采用了患者软组织增强束改变方法，从而减少了甲状腺剂量。头颅侧位片和全景片被发现是最常订购的胶片，培训机构订购的补充和随访放射片比私人执业者更多。总体而言，在两个被调查群体中，需要正颌手术的患者所产生的胶片数量更多、种类更丰富，比其他患者类型更多样。
