| Objective:To investigate the effect of occlusal reconstruction on masticatory efficiency, blood flow velocity and cerebral oxygen saturation in patients with dentition defect and edentulous jaw.Methods:Thirty-three patients with dentition defect and edentulous jaw treated with occlusal reconstruction in Department of Stomatology, Medical School, Huzhou Teachers College from Feb 2011 to Oct 2013 were enrolled in the study. Firstly, the masticatory efficiency and satisfaction were analyzed by using absorption photometry and questionnaire method. Secondly, the systolic peak flow velocity (vs), end-diastolic peak flow (vd), mean peak flow velocity (vm) of middle cerebral artery and the oxygen saturation (rScO2) in the brain were detected at rest and chewing status using transcranial Doppler color ultrasonography and near-infrared spectroscopy, respectively.Results:1. The masticatory efficiency was significantly increased on 3,6 months after treatment (P<0.05).However,there were no significant difference between 3 and 6 months after treatment.The patients were satisfied with the new denture.2. In rest state, Vm was significantly increased on 3 months after treatment, while Vs and Vd were significantly increased on 6 months aftert reatment and rScO2 were increased on 12 months after treatment (P<0.05).3. In chewing state, Vs,Vm, and rScO2 were increased on 3 months after treatment, and Vd was also increased on 6 months after treatment (P<0.05).Conculsion:1. Occlusal reconstruction can improve the chewing efficiency of patients with dentition defect and edentulous jaw, and has a good clinical effect.2. Occlusal reconstruction can increase blood flow velocity of middle cerebral artery and oxygen saturation in brain, and improve cerebral oxygen supply of the brain in patients with dentition defect and edentulous jaw. |
