RESULTS : Positive staining was detected in distinct parts of the tooth germ in different developmental stages . In cap stage ( E15 ) the positive staining was detected in inner enamel epithelium and the staining of the cells of stratum intermedium and stellate reticulum was less positive .

结果c-Met在 牙胚发育的不同阶段表达于 牙 胚中特定的部位帽状期（胚胎15d），内釉上皮 阳性 表达，中间层及部分星网状层细胞弱阳性表达；

METHODS : The expression of MMP-2 in of the pulp of the healthy and carious tooth were examined by immunohistochemical staining RT-PCR real-time PCR and western-blot .

以健康、浅龋和深龋 牙齿中牙髓组织为研究对象，利用 免疫组化、RT-PCR、实时荧光定量PCR和Western印迹检测MMP-2在其中的表达差异。

Methods Apply force on right maxillary first molars in rats and examine the decalcified alveolodental connected tissue in different stage of tooth movement with immunohistochemical staining technique ( SP method ) .

方法对大鼠正畸牙移动不同阶段的 牙及牙周组织联合切片，进行 免疫组织化学研究。