乳牙、年轻恒牙牙髓组织碱性磷酸酶的分布特征

Localization of ALP in Dental Pulp of Primary and Permanent Teeth in Youths

采用组织化学和图象分析手段探讨了人乳牙、年轻恒牙牙髓组织中碱性磷酸酶（ＡＬＰ）的分布特征以及ＡＬＰ与牙髓修复再生能力的关系，基于ＡＬＰ的作用和在乳牙、年轻恒牙中的含量差异，乳牙牙髓的自身修复潜力远不如年轻恒牙。

Abstract The study was undertaken to compare localization of alkaline phosphatase (ALP)in dental pulp of primary and young permanent teeth by histochemical technique and image analysis.The results showed that the enzyme diffusely distributed in the dental pulps,but the activity of ALP was found higher in the predentin, odontoblasts and subodontoblastic cell layer and lower in the pulp core.The conspicuous difference in activity was noted between pulps of primary teeth and mature permanent teeth.In view of function of ALP, the auto-reparability of the pulps of developing permanent teeth were stronger than that of primary teeth.