牙骨质小皮2) cementum corpuscle 牙骨质小体3) cementum [英][si'mentəm] [美][sɪ'mɛntəm] 牙骨质 1. Role of Hertwig s epithelial root sheath in the developing cementum; 上皮根鞘细胞在牙骨质发育中的作用 2. Effect Of Platelet