目的：为了确定大的牙齿病变的原因，暂时确定为爆发前冠状吸收(PEIR)的情况，在TelErani（以色列）铁器时代墓地的年轻人的永久性第二下颌磨牙中，约会CA。3000年B.P.临时诊断是基于一个年轻人的病变的巨大大小，该年轻人的相邻牙齿无龋齿，没有可见的釉质缺陷。
方法：对患侧的TelErani的下磨牙进行了X光检查，并与我们之一治疗的现代PEIR临床病例的X光片进行了比较（UZ）以及使用能量色散X射线光谱法（EDS）详细检查病变的内部结构和矿物质含量。
结果：TelErani标本与PEIR的现代临床病例非常相似。此外，这两种情况都发生在年轻人中，他们的相邻牙齿没有龋齿。SEM检查显示，来自TelErani的受影响牙齿中没有牙本质，以及吸收特征的结构和矿物质含量的变化。
结论：我们的研究表明，来自TelErani的3000岁下颌骨第二磨牙的变化是PEIR的特征，并证明了这种情况的古代。
OBJECTIVE: To determine the cause of a large dental lesion, tentatively identified as a
case of pre-eruptive intra-coronal resorption (PEIR), in the permanent second mandibular molar of a young individual from an Iron Age cemetery at Tel Erani (Israel), dated to ca. 3000 years B.P. The provisional diagnosis was based on the massive size of the lesion in a young individual in whom the adjacent teeth were caries-free and showed no visible enamel defects.
METHODS: The lower molars of Tel Erani on the affected side were radiographed and compared to radiographs of a modern clinical
case of PEIR treated by one of us (U.Z) and the internal structure and mineral content of the lesion examined in detail using energy-dispersive X-ray spectroscopy (EDS).
RESULTS: The Tel Erani specimen closely resembled the modern clinical
case of PEIR. Moreover, both cases occurred in young individuals in whom the adjacent teeth were caries-free. Examination with SEM revealed absence of dentine in the affected tooth from Tel Erani, together with changes in structure and mineral content characteristic of resorption.
CONCLUSIONS: Our study shows that the changes found in the lower second molar of the 3000 year old mandible from Tel Erani are characteristic of PEIR and demonstrate the antiquity of this condition.
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