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KMID : 0361920000300060669
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Korean Journal of Orthodontics
2000 Volume.30 No. 6 p.669 ~ p.675
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The role of the orthodontist in diagnosis of hyperparathyroidism:rare case with general root resorption
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Cha Bong-Kuen
Lee Suk-Kuen
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Abstract
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Excessive production of parathyroid hormone causes bony disorder such as periosteal bone resorption and bone pain due to excessive skeletal demineralization. A Class Ill facial deformity case with generalized root resorption presented here was turned out to be due to hyperparathyroidism. Clinical and cephalometric analysis revealed a straight skeletal profile with a retruded maxilla and a prognathic mandible. The x-ray findings demonstrated generalized root resorption of entire dentition to different degree. There also appeared osteoporosis like immature trabecular structure with the evidence of ground glass appearance. Serum test showed elevated level of parathyroid hormone and growth hormone. Change of cranial growth by hyperparathyroidism can be dependent upon a decreased bone apposition in viscerocranial growth site and abnormalities in cranial suture growth. It is possible to hypothesize that growth retardation of maxilla at least partially be accounted for hyperparathyroidism. Therefore, regarding to the definite etiology of skeletal Class III and orthodontic treatment planning considering root resorption and osteoporosis, the early diagnosis for the hyperparathyroidism should be carefully carried by clinical and laboratory studies.
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KEYWORD
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