低浓度H2O2与可见光联合处理N-TiO2对变形链球菌的杀菌效果。

IF 0.9 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

American journal of dentistry Pub Date : 2022-12-01

Seung-Yong Song, Franklin Garcia-Godoy, Yong Hoon Kwon, Jeong-Kil Park

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引用次数: 0

摘要

目的:考察氮掺杂tio2纳米颗粒短期杀伤变形链球菌(S. mutans)的可行性。方法:对变形链球菌进行N-TiO 2、可见光、不含/含0.5% H₂O₂的组合处理。可见光一次照射3分钟。结果:在N-TiO₂(或TiO₂)+可见光激光(405或660 nm) +0.5% H₂O₂的条件下，亚甲基蓝溶液通过光催化几乎线性地产生自由基，降解(漂白)5-30%。无论试验条件如何，N-TiO 2处理的抗菌效果略优于TiO 2处理。405 nm激光处理对变形链球菌的杀伤效果略优于660 nm激光处理。临床意义:在临床可接受的光照(波长、强度)和低浓度h2o2条件下，短期治疗可消除变形链球菌。

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Bactericidal effect on S. mutans using N-TiO2 with combined treatment of low concentration H2O2 and visible light.

Purpose: To test the feasibility of nitrogen-doped TiO₂ nanoparticles in the killing of Streptococcus mutans (S. mutans) for short term treatment.

Methods: For the study, S. mutans were treated with the combinations of N-TiO₂, visible light, and without/with 0.5% H₂O₂ inclusion. Visible light was irradiated for 3 minutes one time.

Results: Methylene blue solution was degraded (bleached) 5-30% by one of N-TiO₂ (or TiO₂) + visible laser (405 or 660 nm) +0.5% H₂O₂ conditions owing to almost linearly producing free radicals through photocatalysis. Antibacterial outcomes treated with N-TiO₂ were slightly better than those by TiO₂ regardless of test condition. Also, killing of S. mutans treated with 405 nm laser was slightly better than those by 660 nm laser.

Clinical significance: S. mutans can be eliminated using N-TiO₂ with clinically acceptable light (wavelength, intensity) and low concentration H₂O₂ condition under short term treatment.

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来源期刊

American journal of dentistry 医学-牙科与口腔外科

CiteScore

2.40

自引率

7.10%

发文量

审稿时长

1 months

期刊介绍： The American Journal of Dentistry, published by Mosher & Linder, Inc., provides peer-reviewed scientific articles with clinical significance for the general dental practitioner.