Sewerin I P
Royal Dental College, Copenhagen, Denmark.
Clin Oral Implants Res. 1991 Jul-Sep;2(3):151-6. doi: 10.1034/j.1600-0501.1991.020308.x.
A Brånemark standard titanium implant and an IMZ plasma flame spray-coated implant were radiographed experimentally under standardized circumstances. Angulations in relation to film plane and central X-ray as well as rotations around the implant's longitudinal axis were varied. The influence of implant architecture on image density and image pattern was analyzed and images of the two types of implants were compared. The Brånemark implant is asymmetric and exhibits only radiographic burnout in its apical area. The 4 vertical apical cuts cause very distracting images and leave the impression that the implant is conical. It is possible to evaluate angulations with great accuracy from the thread profile, but there are limited possibilities for estimation of rotational stages. The IMZ implant shows symmetric images in any projection. The 4 vertical slits cause a disturbing burnout in the central part of the implant in certain views, and radiographic images are very inconstant. Possibilities of estimating angulation and rotation are varying. Differences in radiographic image characteristics are supposed to influence diagnostic yield as they affect the possibilities of identifying osseointegration radiographically and of controlling image identity in serial radiography.
在标准化条件下，对一枚Brånemark标准钛种植体和一枚IMZ等离子火焰喷涂种植体进行了实验性X线摄影。种植体相对于胶片平面和X线中心线的角度以及围绕种植体长轴的旋转角度均有所变化。分析了种植体结构对图像密度和图像形态的影响，并比较了两种种植体的图像。Brånemark种植体不对称，仅在其根尖区域显示X线摄影显影不佳。4条垂直的根尖切口导致图像非常分散注意力，给人一种种植体呈圆锥形的印象。可以从螺纹轮廓非常准确地评估角度，但估计旋转阶段的可能性有限。IMZ种植体在任何投影中均显示对称图像。在某些视图中，4条垂直狭缝在种植体中央部分导致令人不安的显影不佳，并且X线摄影图像非常不稳定。估计角度和旋转的可能性各不相同。X线摄影图像特征的差异被认为会影响诊断效果，因为它们会影响通过X线摄影识别骨整合以及在系列X线摄影中控制图像一致性的可能性。
