Periodontitis has been demonstrated as a risk factor for ischaemic stroke in several clinical studies. Atherosclerosis of the cerebral vasculatureis an important pathological process causing ischaemic stroke. The investigator's study aims to investigate the relationship between tooth loss(used as a surrogate of periodontal disease) and atherosclerotic-related arterial stenosis in the Chinese population. An estimated 1,000 participants that underwent cerebral angiography at Guangdong Provincial Hospital of Chinese Medicine between Apirl 2020 and January 2022 will be recruited in this trial. Arterial stenosis features of each participants will be collected based on the results of digital subtraction angiography (DSA). The missing teeth counts of each participant will be collected and some of them will recieved comprehensive periodontal examination. Besides, blood samples will be collected in order to investigate the serum inflammatory markers(CRP,WBC,albumin,IL-6,IL-10). The relationship between tooth loss and atherosclerotic-related arterial stenosis will be analysed by regression models adjusted for conventional risk factors (sex,age, obesity,smoking,Alcohol drinking,diabetes,hypertension,hyperuricaemia,hyperhomocysteinaemia)
This study aimed to evaluate the association between periodontitis and atherosclerosis of the cerebral vasculature in the Chinese population.