血液透析患者の口腔所見に関する臨床的研究 : 第2報二次性上皮小体機能亢進症患者におけるx線写真および骨シンチグラフィーによる顎骨変化の検討

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Fourty-nine patients with secondary hyperparathyroidism (2°HPT) were studied on the panoramic radiograph index (PRI) in comparison with two indexes judged by dental films and other data before parathyroidectomy.Intensity of 99mTc-MDP accumulation was represented by using a quantitative method of bone-to-soft tissue uptake ratio (B/St ratio) on calvaria, mandible and L3.Twenty-three patients of these patients were evaluated using bonescintigraphy as well. PRI was correlative with two roentgenographic indexes of dental film, roentgenographic changes of hand, serum alkaline phosphatase (Al-P) and intact PTH, but not with c-PTH and m-PTH. B/St ratio on mandible, calvaria and L3 were respectively correlative with PRI, Al-P, index of hand and intact PTH. These results indicate that renal osteodystrophy (ROD) relatively causes the changes of not only lamina dura but also maxilla and mandible on X-ray, and PRI and B/St ratio of mandible are useful for evaluation of ROD, in patients with 2°HPT.