Effect of 0.4 % stannous fluoride gel on streptococci mutans in relation to elastomeric rings and steel ligatures in orthodontic patients .
0.4%氟化亚锡凝胶对正畸患者弹力结扎圈及结扎钢丝上变形链球菌的作用。
Conclusions : monitored the ischemia signs of trumatized limb carefully is very important to the diagnosis of arteries injuries early ; repaired injuried arteries using microsurgical technique is benefit to reduce amputation rate ; controlled bleeding by clamps and ligatures will lead to arteries defect .