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The root canal therapy of maxillary third molar .

上颌第三磨牙的根管治疗。

The mensuration of molar mass of organic acid .

有机酸摩尔质量的测定。

A couple of days later near the same spot , fossil hunter alemayehu asfaw found a piece of a child 's jaw with a first molar tooth .

几天以后，在该目击地的附近，化石猎手阿勒迈耶胡阿斯范（alemayehuasfaw）有又发现了一片带有第一臼齿的儿童颌骨化石。

Three root canals of mesial root at lower first molar : two cases report .

下颌第一磨牙近中根3根管2例。

The fused tooth of maxillary third molar with supernumerary tooth : a case report .

上颌埋伏第三磨牙与多生牙融合1例。