利用X线设备来检查和治疗疾病,是现代医学不可缺少的一项重要手段。在口腔X线检查方面已由单一的口内根尖片,(牙合)片,发展到了体腔片,口外的全颌曲面体层片,下颌骨正、侧位片以及颞下颌关节经咽侧位片,颞下 The use of X-ray equipment to examine and treat diseases is an indispensable means of modern medicine. Oral X-ray examination has been from a single intramedullary apical pieces, (occlusal) piece, developed into the body cavity piece, outside the mouth of the all-curved surface of the body slice, mandibular positive, lateral radiographs and temporomandibular joint phalangeal Film, infratemporal