[Clinical biological behavior and treatment strategy of hemangioma in oral and maxillofacial region].

Hemangioma can not be prevented until nowadays. Early identification and definite diagnosis are necessary to achieve the best outcome. The clinical biological behaviors of hemangiomas in oral and maxillofacial region are completely investigated and deeply analyzed in this paper.

[Research on histologic changes of periodontal tissue, testification of TNF-alpha and their relationship in diabetics rats].

Objective: The histologic and TNF-alpha changes of the experimental periodontitis were studied in diabetic rat model in different periods. The mechanism of the occurring and developing of periodontitis was probed on the aspect of cytology.

Methods: The diabetic rat models were established by injecting streptozotocin into its abdomen.