RESULTS: The dentine surface characteristics in the contrast group showed anomaly dentine structure with some detritus and residum. The dentinal tubules were not completely exposed. The characteristics of the drilling group appeared rougher with irregular particles scattered throughout the surface. The well-defined smear layer was detected. The dentine tubule orifices were plugged. The cavity surface of the Carisolv group showed that the smear layer was consistently removed and the dentinal tubules of carious area were sufficient exposed.
结果：对照组牙本质崩解破坏，可见碎屑和残渣，牙本质小管形态不完整；机械法去龋组牙本质表面有不规则的颗粒和碎片，有玷污层形成，牙本质小管口堵塞；Carisolv去龋组未见碎屑和残渣以及玷污层，牙本质小管清楚可见。
RESULTS: VIP-immunoreactive nerve fibers were expressed from apical foramina to the central pulp as bunchy line, and became fan-shaped at the cervical line, more branches in the coronal pulp. Some branches surrounded blood vessels, some branches terminated in the pulp matrix, the others passed Raschkow nerve plexus and run forward the odontoblastic layer and the predentine, but not went into dentine.
结果：VIP阳性神经纤维自根尖孔呈束状进入牙髓，至颈部扇形分开，在冠髓大量分支，部分围绕在血管周围，部分终止于牙髓基质，部分参与形成成牙本质细胞层下Raschkow神经丛，然后发出分支伸入成牙本质细胞层和前期牙本质，但不进入成熟牙本质。
The slices were treated by immunohistochemistry reaction and the image analysis. RESULTS: VIP-immunoreactive nerve fibers were expressed from apical foramina to the central pulp as bunchy line, and became fan-shaped at the cervical line, more branches in the coronal pulp. Some branches surrounded blood vessels, some branches terminated in the pulp matrix, the others passed Raschkow nerve plexus and run forward the odontoblastic layer and the predentine, but not went into dentine.
结果：VIP阳性神经纤维自根尖孔呈束状进入牙髓，至颈部扇形分开，在冠髓大量分支，部分围绕在血管周围，部分终止于牙髓基质，部分参与形成成牙本质细胞层下Raschkow神经丛，然后发出分支伸入成牙本质细胞层和前期牙本质，但不进入成熟牙本质。
Based upon the growth layer groups in cementum and dentine of the tooth, the age of the huge Sperm Whale was estimated at 29 years.
根据对牙齿磨片牙骨质和牙齿齿质上的生长层组判断，其年龄约为29龄。
While mechanical removal of the predentine and part of dentine will produce a smear layer which not only masks the growth factors but also is unfavorable for the cell attachment.
机械磨除前期牙本质和部分牙本质，若不作适宜的化学处理，留下的沾污层一方面不利于生长因子的暴露，另一方面沾污层防碍了细胞的附着。
Thick layers of dentin-like matrix associated with a layer of highly elongated odontablast-like cells were found around the granular TGF-β1-HA surface 8 or 12 weeks after operation, while enhancement of circumferential dentine deposition and dentin bridge formation was also found at adjacent peripheral and exposure area.
术后8、12周，TGF-β1-HA颗粒周围有厚层的牙本质样基质及与其相连的高柱状成牙本质样细胞，邻近的周围及洞口部位也看到修复性牙本质明显沉积和牙本质桥形成。