Pre-Irradiation of Blood by Gallium Aluminum Arsenide (830 nm) Low-Level Laser Enhances Peripheral Endogenous Opioid Analgesia in Rats

2008 ◽  
Vol 107 (3) ◽  
pp. 1058-1063 ◽  
Author(s):  
Satoshi Hagiwara ◽  
Hideo Iwasaka ◽  
Akira Hasegawa ◽  
Takayuki Noguchi
2007 ◽  
Vol 39 (10) ◽  
pp. 797-802 ◽  
Author(s):  
Satoshi Hagiwara ◽  
Hideo Iwasaka ◽  
Kentaro Okuda ◽  
Takayuki Noguchi

2021 ◽  
Vol 62 (1) ◽  
pp. 98-107
Author(s):  
Ricardo Barbosa Lima ◽  
Sabrina Nascimento Ribeiro ◽  
Amanda Lopes ◽  
Juliely Nascimento Furtado De Moura ◽  
Márcio Luiz Lima Taga ◽  
...  

Introduction: The use of elastomeric separators during orthodontic treatment can cause pain and low-level laser therapy has been used to manage this outcome. Objective: To present the evidence on the effect of low-level laser therapy in the management of pain caused by the use of elastomeric separators. Methods: An integrative review of clinical studies was carried out in the PubMed, Web of Science, Scopus, BVS, SciELO and clinicaltrials.gov databases using a PICo strategy developed with descriptors, including studies published in the last ten years, without language restriction. 68 articles were tracked and 12 were reviewed. Literature review: Considering laser therapy, most studies used gallium and aluminum arsenide (Ga-Al-As), with a wavelength between 808nm and 940nm, as well as power between 40.6mW and 200mW. The visual analog scale (VAS) was used by most studies to measure the pain. Two studies did not find significant differences in low-level laser therapy in pain caused by elastomeric separators, eight studies found significant differences between the intervention, control and placebo groups (when used) and two studies were not fully conclusive and pointed out partial statistical differences between the groups in question. The application techniques were too heterogeneous in the studies included in this review and do not allow a quantitative synthesis. Conclusion: The low-level laser therapy can demonstrate beneficial effects in reducing pain caused by elastomeric separators. However, it is not yet possible to determine the best application technique.


Author(s):  
VARSHA PALLED ◽  
DR. JITENDRA RAO ◽  
DR. RAGHUWAR DAYAL SINGH ◽  
DR. SHUCHI TRIPATHI ◽  
DR. KALPANA SINGH ◽  
...  

The purpose of this study was to evaluate whether Low-Level Laser Therapy (LLLT) improves the healing of the implant surgical site with clinical and biochemical parameters.Thirty patients with an edentulous space spanning a single tooth were selected. The patients were randomly allocated to two groups - the control group and the test group. The test group received laser energy at a power of 2J/cm 2 with a total of 4-6J energy over each implant. Clinical parameters (Implant Stability Quotient, probing index, modified sulcus bleeding index)and osteoprotegerin (OPG) were assessed at baseline and follow-up intervals (2 weeks, 6 weeks, and 3 months).The test group showed significantly higher implant stability quotient compared to thecontrol group at 2 weeks(57.93±3.95 and 35.67±3.08; p<0.01) and 3months(58.86±3.75 and 67.06±3.78; p<0.01). A significant rise in OPG levels of the test group(686.30±125.36pg/ml at baseline and 784.25±108.30pg/ml at 3months;p<0.01) was seen contrary to significant decline in the control group (839.50±249.08pg/ml at baseline,415.30±78.39pg/ml at 3months;p<0.01). Within the limitations of the study, the study suggests that the healing of peri-implant hard and soft tissues may be enhanced with the use of LLLT as an explicit modality during the post-operative period.


2020 ◽  
Vol 69 (3) ◽  
Author(s):  
Paulo Esteves Pinto Faria ◽  
Astrid Temprano ◽  
Fábio Piva ◽  
Eduardo Sant'ana ◽  
Dênis Pimenta

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