Figure 4.

Morphological findings observed in normal rat, nondiabetic ((a), (b), and (c)) and hyperglycemic diabetic ((d), (e), and (f)), untreated or incisions treated with CEC and Zn + TDI, on the 4th postoperative day, respectively. Note the fibrin crust leukocyte (c) and the almost complete contraction of surgical margins (arrows) and reepithelialization of advanced epithelial surface (ep) in diabetic animals treated with Zn + TDI compared to nondiabetic rats treated with incisions or treated with CEC alone (H & E 20x).