Tardivo D, Pommel L, La Scola B, About I, Camps J
UMR 6578, UFR Médecine Nord, Marseille, France.
Odontostomatol Trop. 2010 Mar;33(129):29-35.
To compare the antibacterial effect of the passive ultrasonic to passive sonic irrigation with a 5.25% NaOCI solution.
Sixty human teeth were used. The crowns were removed and the roots were instrumented prior to sterilization and incubation with Enterococcus faecalis. Five mL of 5.25% NaOCI were used during a 3 min final rinsing with: syringe irrigation (n = 20), passive ultrasonic irrigation with the Irrisafe (n = 20) and passive sonic irrigation with the Endo Activator (n = 20). A sterile file was used to remove dentine shavings at the apex and placed in BHI. After 72 h, this infusion was used to inoculate blood agar plates. The presence or absence of Enterococcus faecalis colonies was determined and statistically analyzed.
No statistically significant difference was found among the 3 groups. None of the irrigation regimen permitted to obtain 100% of bacteria free teeth.
The passive agitation of the irrigation solution did not increase its antibacterial efficiency. Longer irrigation times may be required.
比较5.25%次氯酸钠溶液被动超声冲洗与被动声波冲洗的抗菌效果。
使用60颗人牙。去除牙冠，在根管预备后进行消毒，并与粪肠球菌一起孵育。在最后3分钟冲洗时使用5毫升5.25%次氯酸钠溶液，冲洗方式分别为：注射器冲洗（n = 20）、使用Irrisafe进行被动超声冲洗（n = 20）和使用Endo Activator进行被动声波冲洗（n = 20）。用无菌锉去除根尖处的牙本质碎屑并置于脑心浸液中。72小时后，用该浸液接种血琼脂平板。确定粪肠球菌菌落的有无并进行统计学分析。
3组之间未发现统计学上的显著差异。没有一种冲洗方案能使牙齿达到100%无菌。
冲洗液的被动搅动并未提高其抗菌效率。可能需要更长的冲洗时间。
