Inter-relação de aspectos clínicos, radiográficos e hematológicos em pacientes sob terapia com bisfosfonatos

• Autor(a) principal: Koth, Valesca Sander
• Data de Publicação: 2016
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da PUC_RS
• Texto Completo: http://tede2.pucrs.br/tede2/handle/tede/6734
• topic: OSSOS - NECROSE; DIFOSFONATOS; TESTES HEMATOLÓGICOS; RADIOGRAFIA PANORÂMICA; DIAGNÓSTICO BUCAL; ESTOMATOLOGIA CLÍNICA; ODONTOLOGIA; CIENCIAS DA SAUDE::ODONTOLOGIA

Bisphosphonates are antiresorptive drugs widely used to treat bone disorders. They have been associated with the development of bisphosphonate-related osteonecrosis of the jaw (BRONJ), a side effect involving gnathic bones that causes necrosis, pain, suppuration, swelling, fistula, tooth mobility, paresthesia and halitosis. This disease is characterized by high morbidity and refractory behavior. The aim of this study was to analyze clinical, radiographic and hematological aspects of patients under bisphosphonate therapy. Records of patients taking bisphosphonates were analyzed according to the occurrence of BRONJ: BRONJ group (n=27) and non-BRONJ group (n=108). Results showed that age did not significantly differ between the groups. The non-BRONJ group had higher prevalence of women, osteoporosis and use of oral bisphosphonate than the BRONJ group, whereas this one had higher prevalence of men, metastasis and intravenous bisphosphonate than the non-BRONJ group. Alkaline phosphatase and erythrocyte sedimentation rate (ESR) were significantly higher in the BRONJ group, whereas fasting serum glucose, C-terminal telopeptide of collagen I (CTX), parathormone (PTH), calcium and phosphorus did not significantly differ. The BRONJ group showed association with smoking, tooth extraction, anemia and leukocytosis; gastric and autoimmune disorders were significantly more prevalent in the non-BRONJ group. On radiographic analysis, persisting alveolar socket, osteolysis, bone sclerosis and narrowing of the mandibular canal were significantly more prevalent in the BRONJ group. Thickening of the lamina dura, periradicular radiolucency, widening of the periodontal ligament space and bone sequestrum did not significantly differ between the groups. Positive correlation was observed between age and ESR, ESR and widening of the periodontal ligament space, and alkaline phosphatase and persisting alveolar socket. Also, bone sclerosis was correlated with persisting alveolar socket and osteolysis, and osteolysis with sequestrum and periradicular radiolucency. Conclusion: In the present study it was observed association of BRONJ with males, intravenous bisphosphonate, bone metastasis, smoking, anemia, leukocytosis persistent alveolar socket, osteolysis, bone sclerosis, narrowing of the mandibular canal and sequestrum. There was no association of BRONJ with patients’ age, and serum levels of calcium, phosphorus, alkaline phosphatase, PTH and CTX.