它通过反馈信息这种符合逻辑概念的方式，在标本的制作、仪器的设置、光密度分析的测量、诊断结果的判读中连续发挥着作用。
It works continuously in a logistic concept with feedback to the sample preparation, the instrumentation Settings, the densitometric measurements, and the diagnostic interpretation.
方法采用光密度分析软件分别测定三叉神经痛患者以及健康人群全景片下颌体部标定区域内的光密度，按年龄、性别进行对比分析，观察两组骨密度的变化情况。
Methods The software of bone mineral density was used to detect both patients with trigeminal neuralgia and the normal subjects′ bone mineral density of the mandibular definite zone through DPT.
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