Structural changes of dental enamel , dentine, cementum and pulpal reactions in carious process are discussed.其中,釉质龋的研究资料最为丰富, 其次是牙本质, 有关牙骨质龋的资料最少....

雌黄...

indumentum的音标：indumentum的英式发音音标为：[ɪndjʊ'mentəm]indumentum的美式发音音标为：[ɪndjʊ'mentəm]...

体被...