材料和方法 研究对象是46例牙周病患者,年龄28～45岁。检查上颌前磨牙和磨牙的牙周组织血流图。电极系统安放在一侧上后牙颊侧牙龈上,用胶布在牙面上固定(预先将牙冠颊面擦干)。用4Pг-2M-у型血流图仪和H-338-4型自动记录器。在功能负荷试验前和试验后1～30min检查牙周血流图。功能负荷试验方法是让患者用被检查的一侧后牙咀嚼生的胡萝卜5小块,每块1.0cm~3,咀嚼30s。对照组是53名牙周组织健康者。 Materials and Methods Subjects were 46 patients with periodontal disease, aged 28 to 45 years. Check the periodontal tissue flow map of the maxillary premolars and molars. The electrode system is placed on the buccal gingivae of the posterior teeth on one side and is fixed on the tooth surface with a tape (pre-crowned the buccal surface). With 4Pг-2M-у type blood flow meter and H-338-4 automatic recorder. Periodontal blood flow was checked before and after 1 ~ 30min of functional load test. The functional load test method is to let the patient chew the small pieces of carrot on the examined posterior teeth of 1.0 cm to 3 pieces each for 30 seconds. The control group was 53 healthy periodontal tissues.