牙体牙髓牙周病学杂志
牙體牙髓牙週病學雜誌
아체아수아주병학잡지
CHINESE JOURNAL OF CONSERVATIVE DENTISTRY
2015年
5期
322-325
,共4页
根管消毒%粪肠球菌%感染根管%激光%超声
根管消毒%糞腸毬菌%感染根管%激光%超聲
근관소독%분장구균%감염근관%격광%초성
root canal disinfection%Enterococcus faecalis%infected root canal%laser%ultrasonic
目的：对比Nd：YAG激光、Er：YAG激光、超声冲洗等根管消毒方法对感染根管的消毒效果。方法：选择85个新鲜拔除的人单根管离体牙建立粪肠球菌感染模型后，随机分为4组（n＝20），分别用Nd：YAG激光、Er：YAG激光、超声冲洗、生理盐水冲洗，通过细菌培养法对比各组的杀菌率。临床选取280例慢性根尖周炎病例，随机分为4组（n＝70）。根管预备后分别用和体外实验相同的4种方法处理根管后进行根管充填，对术后1、3、5 d及1年后的疗效进行评价。结果：体外实验显示，Nd：YAG激光、Er：YAG激光的杀菌效果均显著优于超声冲洗组和阴性对照组（P＜0．05），而超声冲洗组与阴性对照组无明显差异（P＞0．05）。临床试验表明，Nd：YAG激光、Er：YAG激光、超声冲洗组均能明显减少根管充填后24 h内EIAE的发生率（P＜0．05）；1年后的疗效显示，Nd：YAG激光、Er：YAG激光组显著优于生理盐水冲洗组（P＜0．05），而超声冲洗组与生理盐水冲洗组则无明显差异（P＞0．05）。结论：Nd：YAG激光和Er：YAG激光有较好的根管消毒效果，能有效预防和减少一次性根管治疗期间急症的发生。
目的：對比Nd：YAG激光、Er：YAG激光、超聲遲洗等根管消毒方法對感染根管的消毒效果。方法：選擇85箇新鮮拔除的人單根管離體牙建立糞腸毬菌感染模型後，隨機分為4組（n＝20），分彆用Nd：YAG激光、Er：YAG激光、超聲遲洗、生理鹽水遲洗，通過細菌培養法對比各組的殺菌率。臨床選取280例慢性根尖週炎病例，隨機分為4組（n＝70）。根管預備後分彆用和體外實驗相同的4種方法處理根管後進行根管充填，對術後1、3、5 d及1年後的療效進行評價。結果：體外實驗顯示，Nd：YAG激光、Er：YAG激光的殺菌效果均顯著優于超聲遲洗組和陰性對照組（P＜0．05），而超聲遲洗組與陰性對照組無明顯差異（P＞0．05）。臨床試驗錶明，Nd：YAG激光、Er：YAG激光、超聲遲洗組均能明顯減少根管充填後24 h內EIAE的髮生率（P＜0．05）；1年後的療效顯示，Nd：YAG激光、Er：YAG激光組顯著優于生理鹽水遲洗組（P＜0．05），而超聲遲洗組與生理鹽水遲洗組則無明顯差異（P＞0．05）。結論：Nd：YAG激光和Er：YAG激光有較好的根管消毒效果，能有效預防和減少一次性根管治療期間急癥的髮生。
목적：대비Nd：YAG격광、Er：YAG격광、초성충세등근관소독방법대감염근관적소독효과。방법：선택85개신선발제적인단근관리체아건립분장구균감염모형후，수궤분위4조（n＝20），분별용Nd：YAG격광、Er：YAG격광、초성충세、생리염수충세，통과세균배양법대비각조적살균솔。림상선취280례만성근첨주염병례，수궤분위4조（n＝70）。근관예비후분별용화체외실험상동적4충방법처리근관후진행근관충전，대술후1、3、5 d급1년후적료효진행평개。결과：체외실험현시，Nd：YAG격광、Er：YAG격광적살균효과균현저우우초성충세조화음성대조조（P＜0．05），이초성충세조여음성대조조무명현차이（P＞0．05）。림상시험표명，Nd：YAG격광、Er：YAG격광、초성충세조균능명현감소근관충전후24 h내EIAE적발생솔（P＜0．05）；1년후적료효현시，Nd：YAG격광、Er：YAG격광조현저우우생리염수충세조（P＜0．05），이초성충세조여생리염수충세조칙무명현차이（P＞0．05）。결론：Nd：YAG격광화Er：YAG격광유교호적근관소독효과，능유효예방화감소일차성근관치료기간급증적발생。
AIM:To compare the in vitro and in vivo root canal disinfection effects of Nd:YAG laser (NdL),Er:YAG laser(ErL),ultrasonic irrigation(US)and normal saline(NS)irrigation.METHODS:For the in vitro study,85 single -rooted teeth were selected and contaminated with Enterococcus faecalis.The specimens were randomly divided into 4 groups(n=20)and were then treated with NdL,ErL,US and NS irrigation respectively.Bac-teria were collected from the root canals and cultured.For the in vivo study,280 teeth with chronic apical periodontitis were selected and randomly divided into 4 groups(n=70).After root canal preparation,the root canals were treated with NdL,ErL,US and NS respectively,and were then filled.The patients were followed-up at 1 d,3 d,5 d and 1 year after treatment.RESULTS:In vitro study showed that the root canal disinfection effects of NdL and ErL were sig-nificantly stronger than that of US and NS (P<0.05).No significant difference was found between US and NS(P>0. 05 ).In vivo study showed that NdL,ErL and US decreased the incidence of EIAE after root canal filling at 1 d (P<0.05).At 1 year follow-up,the success rate of NdL and ErL groups were higher than that of US and NS groups (P<0.05).However,no significant difference was found between US and NS groups (P>0.05).CONCLUSION:Nd:YAG laser and Er:YAG laser is effective in root canal disinfection.
