Kumar S, Mathur R M, Chandra S, Jaiswal J N
J Pedod. 1990 Winter;14(2):93-6.
One hundred and twenty primary maxillary and mandibular extracted teeth were collected to study the occurrence and nature of pulp calcifications. The teeth were serially sectioned, stained with hematoxylin and eosin, examined by light microscope. Pulp calcifications were observed in 31 (25.8%) teeth. Two types of pulp calcifications were noticed i.e., diffuse calcifications and free/attached type denticles. The occurrence of pulp calcification appears identical in all teeth except in the first primary molar which is statistically not significant (P greater than 0.05). The low prevalence of pulp calcifications in the primary teeth support the view that pulp calcification increases as the age advances.
收集了120颗上颌和下颌的乳牙，以研究牙髓钙化的发生率和性质。将牙齿进行连续切片，用苏木精和伊红染色，通过光学显微镜检查。在31颗（25.8%）牙齿中观察到牙髓钙化。发现了两种类型的牙髓钙化，即弥漫性钙化和游离/附着型牙质小体。除第一乳磨牙外，牙髓钙化在所有牙齿中的发生率似乎相同，差异无统计学意义（P大于0.05）。乳牙中牙髓钙化的低发生率支持了牙髓钙化随年龄增长而增加的观点。
