Objective To detect and analyse CRP level in rat chronic periodontitis and atherosclerosis compound model.Methods Sixty rats were randomly divided into four groups,15 in each group: Group A:control group;Group B:periodontitis group;Group C:atherosclerosis group;Group D:periodontitis and atherosclerosis group.Every group accepted the corresponding treatment.Pathological changes in periodontal tissue of experimental teeth and arterial vessels were observed.CRP level in serum was assayed by ELISA.Results Histopathological observation of periodontal tissue revealed: Obvious inflammation of periodontal tissue was observed in group B,D.Attachment loss levels in group B and D were higher than that of A,C groups(P
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