掺铒钇铝石榴石激光、冲击波增强发射光声流与传统针管冲洗对冲洗剂根尖挤出的比较效果。

Comparative effects of erbium-doped yttrium aluminum garnet laser, the shock wave-enhanced emission photoacoustic streaming, and the conventional needle irrigation on apical extrusion of irrigants.

作者信息

Vatanpour Mehdi, Fazlyab Mahta, Nikzad Maliheh

机构信息

Department of Endodontics, Dental School of Islamic Azad University, No. 9, 9th Neyestan St., Pasdaran Ave., Tehran, Iran.

Department of Endodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

出版信息

Photodiagnosis Photodyn Ther. 2022 Sep;39:102878. doi: 10.1016/j.pdpdt.2022.102878. Epub 2022 Apr 22.

DOI:10.1016/j.pdpdt.2022.102878

PMID:35470126

Abstract

OBJECTIVES

This study compared the effects of erbium-doped yttrium aluminum garnet (Er:YAG) laser with the shockwave-enhanced emission photoacoustic streaming (SWEEPS) protocol and the conventional needle irrigation (CNI) on extrusion of irrigants through the root apex of molar teeth with different apical diameters.

MATERIALS AND METHODS

In this ex vivo experimental study, access cavities were prepared in 120 extracted maxillary and mandibular molars in 12 groups of conventional needle irrigation (CNI), auto-SWEEPS, ultra-short pulse (USP), and super-short pulse (SSP), each with 0.25, 0.4 and 0.8 mm apical diameters (n = 10). The root canals were prepared and mounted in resin blocks. Periodontal pressure was simulated by a capillary tube of water in the apex. The volume of extruded irrigant was quantified spectrophotometrically, and analyzed by the Kruskal-Wallis test.

RESULTS

Apical extrusion in CNI was the same in the three apical diameters, and was maximum compared with others groups. The amount of extruded irrigant through the apex was different among the three apical diameters in auto-SWEEPS (P = 0.002) and USP (P = 0.001) modes. The SSP mode caused maximum extrusion of irrigant with no significant difference among different apical diameters (P = 0.681) followed by auto-SWEEPS. The USP mode caused the lowest extrusion in 0.25 mm diameter (P = 0.006). In auto-SWEEPS, 0.25 mm diameter had a significant difference with 0.8 mm. In USP, 0.25 mm had a significant difference with 0.4 and 0.8 mm diameters. In 0.25 mm, USP and SSP (P < 0.05), and USP and auto-SWEEPS (P < 0.05) had significant differences. In 0.4 mm, only SSP and USP had a significant difference (P < 0.05).

CONCLUSION

. CNI with a 27-gage needle caused greater irrigant extrusion than the SWEEPS modes. The USP mode caused minimum extrusion of irrigant.

摘要

目的

本研究比较了掺铒钇铝石榴石（Er:YAG）激光联合冲击波增强发射光声流（SWEEPS）方案和传统针头冲洗（CNI）对不同根尖直径磨牙根尖孔冲洗液挤出量的影响。

材料与方法

在这项体外实验研究中，将120颗拔除的上颌和下颌磨牙分为12组，分别采用传统针头冲洗（CNI）、自动SWEEPS、超短脉冲（USP）和超短脉冲（SSP），每组根尖直径分别为0.25、0.4和0.8毫米（n = 10）。制备根管并固定于树脂块中。通过根尖处的毛细管模拟牙周压力。采用分光光度法定量测定冲洗液挤出量，并通过Kruskal-Wallis检验进行分析。

结果

CNI在三种根尖直径下的根尖挤出量相同，且与其他组相比最大。自动SWEEPS（P = 0.002）和USP（P = 0.001）模式下，三种根尖直径的根尖冲洗液挤出量不同。SSP模式导致冲洗液挤出量最大，不同根尖直径间无显著差异（P = 0.681），其次是自动SWEEPS。USP模式在0.25毫米直径时冲洗液挤出量最低（P = 0.006）。在自动SWEEPS中，0.25毫米直径与0.8毫米直径有显著差异。在USP中，0.25毫米直径与0.4毫米和0.8毫米直径有显著差异。在0.25毫米时，USP与SSP（P < 0.05）以及USP与自动SWEEPS（P < 0.05）有显著差异。在0.4毫米时，只有SSP与USP有显著差异（P < 0.05）。