超声或二极管激光激活乙二胺四乙酸、依替膦酸和过氧乙酸去除根管壁氢氧化钙的效果。

The effectiveness of ethylenediaminetetraacetic, etidronic, and peracetic acids activated with ultrasonics or diode laser on calcium hydroxide removal from root canal walls.

机构信息

Department of Endodontics, Dental Faculty, University of Gazi, Ankara, Turkey.

出版信息

Niger J Clin Pract. 2021 Nov;24(11):1662-1668. doi: 10.4103/njcp.njcp_539_20.

DOI:10.4103/njcp.njcp_539_20

PMID:34782506

Abstract

BACKGROUND

To assess the efficiency of ethylenediaminetetraacetic acid (EDTA), etidronic (HEBP), and peracetic (PAA) acids agitated with ultrasonic energy or diode laser on removing calcium hydroxide (CH) dressings from root canal walls.

MATERIAL AND METHODS

Single root canals of eighty extracted human teeth were chemomechanically instrumented and filled with CH. Sixty teeth were divided into six experimental groups (n = 10) according to the applied irrigation regimens for the removal of CH: Group 1: 5.25% NaOCl-17% EDTA, Passive ultrasonic irrigation (PUI); Group 2: 5.25% NaOCl + 9% HEBP, PUI; Group 3: 5.25% NaOCl-2% PAA, PUI; Group 4: 5.25% NaOCl-17% EDTA, Diode laser-activated irrigation (LAI); Group 5: 5.25% NaOCl + 9% HEBP, LAI; Group 6: 5.25% NaOCl-2% PAA, LAI. The other 20 teeth were served as negative (n = 10) and positive controls (n = 10). The residuary amount of CH was scored in coronal, middle, and apical thirds of the root canals by using scanning electron microscope. The data were statistically analyzed using Kruskal-Wallis H with Bonferroni adjusted Mann-Whitney U test with a significance level of 0.05.

RESULTS

Etidronic acid activated with ultrasonics or diode laser removed the highest amount of CH from the middle third of root canals, compared to the other irrigation regimens (P < 0.001). Although the residual CH scores of PAA-PUI, PAA-LAI, and EDTA-PUI, EDTA-LAI groups were not statistically different from each other (P > 0.05), lower amount of CH was observed in the PAA-PUI and PAA-LAI groups.

CONCLUSIONS

Use of etidronic acid activated with ultrasonics or diode laser can be an appropriate irrigation regimen for CH removal from root canal system.

摘要

背景

评估乙二胺四乙酸（EDTA）、依替膦酸（HEBP）和过氧乙酸（PAA）在超声能量或二极管激光搅拌下从根管壁去除氢氧化钙（CH）敷料的效率。

材料和方法

对 80 颗人离体牙的单根管进行化学机械预备和 CH 填充。60 颗牙根据应用的冲洗方案分为 6 个实验组（n=10），用于去除 CH：第 1 组：5.25%次氯酸钠-17%EDTA，被动超声冲洗（PUI）；第 2 组：5.25%次氯酸钠+9%HEBP，PUI；第 3 组：5.25%次氯酸钠-2%PAA，PUI；第 4 组：5.25%次氯酸钠-17%EDTA，二极管激光激活冲洗（LAI）；第 5 组：5.25%次氯酸钠+9%HEBP，LAI；第 6 组：5.25%次氯酸钠-2%PAA，LAI。另外 20 颗牙作为阴性（n=10）和阳性对照（n=10）。通过扫描电子显微镜在根管的冠、中、根尖三分位评估 CH 的残留量。使用 Kruskal-Wallis H 检验和 Bonferroni 调整的 Mann-Whitney U 检验对数据进行统计学分析，显著性水平为 0.05。

结果

与其他冲洗方案相比，超声或二极管激光激活的依替膦酸从中段去除了最多的 CH（P<0.001）。尽管 PAA-PUI、PAA-LAI 和 EDTA-PUI、EDTA-LAI 组的残留 CH 评分彼此之间无统计学差异（P>0.05），但在 PAA-PUI 和 PAA-LAI 组中观察到 CH 残留量较低。