Calcium oxalate deposition in the periodontium secondary to chronic renal failure

摘要: Abstract Deposition of calcium oxalate in the periodontium, with accompanying bone loss and tooth resorption, occurred a 55-year-old woman on long-term renal dialysis for end-stage disease. These deposits were birefringent upon examination polarized light. Scanning electron microscopy revealed clusters sharply angular oblong needlelike crystals. Microincineration followed by staining alizarin red S was positive oxalate. X-ray diffraction studies crystals tissue specimen pattern identical to that commercially prepared monohydrate. It is postulated pre-existing inflammatory periodontal disease may have provided appropriate milieu deposition precipitation deposits, acting as foreign body, further intensified response, resulting extensive alveolar external resorption.