Abrahams J J, Berger S B
Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT 06520-8042, USA.
AJR Am J Roentgenol. 1998 Apr;170(4):1085-91. doi: 10.2214/ajr.170.4.9530065.
Before the development of dental CT reformatting software, much of the radiographic assessment of the mandible and maxilla was performed in the dentist's office using plain radiographs. The widespread use of dental reformatting software, however, has caused the radiologist to take a more active role in evaluating the jaw. Unfortunately, most radiologists have had little experience in this area, and many of the CT findings are undescribed. Our objective, therefore, was to determine the CT appearance of dental-related inflammatory disease of the jaw and to discuss the mechanisms causing such disease.
Reformatted CT scans of 400 patients referred for dental implant assessment were evaluated for abnormalities related to infection of dental origin, inflammation of dental origin, or both. The diagnosis was confirmed by surgery, clinical presentation, classic plain film appearance, or a combination of the three.
The following disease processes were identified and described: periodontal lesions, periapical lesions, condensing osteitis, disuse bone atrophy associated with edentia, and maxillary sinus abnormalities associated with dental disease.
Inflammatory diseases of the jaw and their sequelae are frequently seen on CT scans of patients referred for examination before dental implantation. Because radiologists now take an active role in evaluating the jaw, they need to become familiar with these findings.
在牙科CT重组软件开发之前，下颌骨和上颌骨的许多影像学评估是在牙医诊所使用普通X光片进行的。然而，牙科重组软件的广泛使用使放射科医生在评估颌骨方面发挥了更积极的作用。不幸的是，大多数放射科医生在这一领域经验甚少，许多CT表现尚未得到描述。因此，我们的目的是确定颌骨牙科相关炎症性疾病的CT表现，并探讨引发此类疾病的机制。
对400例因牙种植评估而转诊患者的重组CT扫描进行评估，以查找与牙源性感染、牙源性炎症或两者相关的异常情况。通过手术、临床表现、典型X光片表现或三者结合来确诊。
识别并描述了以下疾病过程：牙周病变、根尖周病变、致密性骨炎、与无牙相关的废用性骨萎缩以及与牙科疾病相关的上颌窦异常。
在因牙种植前检查而转诊患者的CT扫描中，经常可以看到颌骨炎症性疾病及其后遗症。由于放射科医生现在在评估颌骨方面发挥着积极作用，他们需要熟悉这些表现。
