PIPS联合纳米银对根管粪肠球菌抗菌效果研究

doi:10.13591/j.cnki.kqyx.2023.02.003

Abstract

Abstract:

Objective To explore the antibacterial effect of combined use of photon-induced photoacoustic streaming (PIPS) and silver nanoparticles (AgNPs) on Enterococcus faecalis biofilm in root canals. Methods A total of 36 isolated teeth with single root canal were collected to establish an experimental root canal model of Enterococcus faecalis infection. Samples were randomly divided into six groups and 0.9% NaCl, 2% NaClO, 0.1% AgNPs solutions were used with conventional needle irrigation (CNI) or PIPS for root canals. Colony count method was used to measure the number of Enterococcus faecalis biofilm in root canals before and after treatment, and the percentage of colony count reduction was calculated. Results The inhibitory effect of Enterococcus faecalis biofilm in all experimental groups was stronger than that in the control group (P<0.05). The decrease amplitude of 0.9% NaCl, 2% NaClO, 0.1% AgNPs assisted with PIPS was greater than that of 0.9% NaCl, 2% NaClO, 0.1% AgNPs assisted with CNI (P<0.05). The decrease in the 0.1% AgNPs assisted with PIPS group was significantly greater than that in the 2% NaClO assisted with PIPS group (P<0.05). Conclusion PIPS-assisted AgNPs solution washing can significantly improve the effect of clearing Enterococcus faecalis biofilm in root canals.

Key words: nano-silver (AgNPs), photon-induced photoacoustic streaming (PIPS), Enterococcus faecalis

CLC Number:

R781.05

CUI Jingwen,FAN Jianlin. Efficacy of the photon-induced photoacoustic streaming combined with nano-silver solution on Enterococcus faecalis in root canals[J]. Stomatology, 2023, 43(2): 110-113.

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References 24

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组别	治疗前/ (CFU/个)	治疗后/ (CFU/个)	RCC/%
CNI	189.80±15.46	212.00±19.29	-11.47
NaClO+CNI	191.50±13.20	113.00±6.63	40.57^A
AN+CNI	196.30±16.61	124.50±10.80	36.62^A
PIPS	200.00±10.30	117.50±7.87	41.34^A
NaClO+PIPS	191.80±8.14	25.50±2.55	86.83^ABC
AN+PIPS	195.50±10.88	17.00±2.18	91.46^ABDE

Efficacy of the photon-induced photoacoustic streaming combined with nano-silver solution on Enterococcus faecalis in root canals

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