1) ultrasonic instruments
超声器械
1.
Objective: (l)To compare the difference between ultrasonic instruments and traditional slow-speed handpiece in retropreparation(2)to evaluate the ultrasonic instruments effecting on canal isthmus (3)to evaluate the feasibility, advantages and disadvantages of ultrasonic instruments on posterior teeth in root-end preparation.
结果:超声器械的牙体组织切割量、微裂数目、管腔碎屑和玷污层明显少于慢速手机(P＜0。
2) ultrasonic scaling apparatus
超声波除垢器械
3) ultrasonic surgical instrument
超声手术器械
4) ultrasonic scaling apparatus
超声波除垢器;超声波洁牙器械
6) electrophonic apparatus
电声器械
补充资料：器械
1.工具。亦泛指用具。 2.指武器。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条