上颌第二磨牙近颊第二根管变异2例
Journal of Practical Stomatology(2021)
Abstract
上颌第二磨牙近颊第二根管多位于近颊第一根管附近,本文报道两例上颌第二磨牙近颊第二根管位于腭根位置,提示要注意上颌第二磨牙的根管变异.
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