With full surrounding enclosure design, reduce laser radiation and avoid any mechanicalinjury.
整机全包围设计,减少激光辐射,预防机械伤害。
2
Results Secondary infection of the root tubes , apex overfilled and peripheral mechanicalinjury were main failure factors in the treatment of root tubes .
结果根管治疗失败的主要原因为根管继发感染、根尖超填及根尖周机械损伤。
3
Objective: To study the significance of early changes of nitric oxide level in brain tissue and the permeability of blood brain barrier after mechanicalinjury in brainstem.