Dula K, Mini R, van der Stelt P F, Buser D
Department of Oral Surgery, School of Dental Medicine, University of Berne, Switzerland.
Int J Oral Maxillofac Implants. 2001 Jan-Feb;16(1):80-9.
Indications for the most frequently used imaging modalities in implant dentistry are proposed based on clinical need and biologic risk for the patient. To calculate the biologic risk, the authors carried out dose measurements. They demonstrated that the risk from a periapical radiograph is 20% of that from a panoramic radiograph. A panoramic radiograph and a series of 4 conventional tomographs of a single-tooth gap in the molar region carry 5% and 13% of the risk from computed tomography of the maxilla, respectively. Panoramic radiography is considered the standard radiographic examination for treatment planning of implant patients, because it imparts a low dose while giving the best radiographic survey. Periapical radiographs are used to elucidate details or to complete the findings obtained from the panoramic radiograph. Other radiographic methods, such as conventional film tomography or computed tomography, are applied only in special circumstances, film tomography being preferred for smaller regions of interest and computed tomography being justified for the complete maxilla or mandible when methods for dose reduction are followed. During follow-up, intraoral radiography is considered the standard radiographic examination, particularly for implants in the anterior region of the maxilla or for scientific studies. In patients requiring more than 5 periapical images, panoramic radiography is preferred.
基于临床需求和患者的生物学风险，提出了种植牙科中最常用成像方式的适应症。为了计算生物学风险，作者进行了剂量测量。他们证明根尖片的风险是全景片的20%。磨牙区单牙间隙的全景片和一系列4张传统断层片分别承担上颌骨计算机断层扫描风险的5%和13%。全景放射摄影被认为是种植患者治疗计划的标准放射学检查，因为它剂量低，同时能提供最佳的放射学检查。根尖片用于阐明细节或完善从全景片中获得的结果。其他放射学方法，如传统胶片断层扫描或计算机断层扫描，仅在特殊情况下应用，对于较小的感兴趣区域，胶片断层扫描更受青睐，而当遵循剂量降低方法时，计算机断层扫描适用于整个上颌骨或下颌骨。在随访期间，口腔内放射摄影被认为是标准的放射学检查，特别是对于上颌前部的种植体或科学研究。对于需要超过5张根尖片的患者，全景放射摄影更受青睐。
