Helium-neon laser therapy interferes with epiphyseal plate growth in the femur and tibia of rabbits

2013 ◽  
Vol 2 (4) ◽  
Author(s):  
Flavia de Oliveira ◽  
Maria Stella Peccin ◽  
Kelly Rosseti Fernandes ◽  
Ana Claudia Muniz Renno ◽  
Paulo Ricardo Giusti ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Laser Light ◽  
Negative Control ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Neon Laser ◽  
Level Laser ◽  
Helium Neon Laser ◽  
The Right ◽  
Helium Neon

AbstractThe purpose of this study was to evaluate the influence of low-level laser therapy (LLLT) on epiphyseal cartilage in the femur and tibia of rabbits. A total of six male New Zealand rabbits were used in this study. The right tibia or femur lesions (control group) served as negative control and the left as experimental (laser) group. Helium-neon (HeNe) laser light with an energy density of 6 J/cm

scholarly journals THE EXPRESSION OF TGF-1 AFTER LOW LEVEL LASER THERAPY IN INFLAMMATION ANIMAL MODEL

2017 ◽  
Vol 53 (1) ◽  
pp. 29
Author(s):  
Imam Subadi ◽  
Indrayuni Lukitra Wardhani ◽  
Andriati Andriati
Keyword(s):  
Laser Therapy ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Treatment Groups ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser

Pain is the most common complaints in everyday practice. Pain is a clinical manifestation caused by stimuli due to potential tissue damage. Low level laser therapy (LLLT) has been used in reducing pain. One of indicator tissue healing is activation of transforming growth factor -b1(TGF-b1). Tissue healing will eliminate the pain. Do LLLT stimulate TGF-b1 expression? The objective of this study was to investigate the expression of TGF-b1 in low level laser therapy. Thirty male Wistar rats, body weight 250 – 300 gram, 3 month old, were divided into 3 groups, negative control (n=10), positive control (n=10) and treatment groups (n=10). The positive control and treatment groups were injected with Complete’s Freund Adjuvant (CFA) 100 mL at left footpad. The treatment group treated with low level laser therapy Lasermed type 2100 wavelength 905 nm, out power 25-500 mW, dose 1 joule/cm2;5 times with interval 24 hours on left footpad. Samples were taken from the skin of footpad and immunohistochemical examination with monoclonal antibody anti- TGF-b1. Calculations carried out on brown reaction in macrophage cell. Data were analyzed using the Games Howell with SPSS 17. There were significant differences in the expression of TGF-b1 in treatment group (15.8±3.1) compared with the positive control group (3.9±1.1) and negative control group (4.6±2.1). There were no significant differences between expression TGF-b1 in positive control group and negative control group. In conclusion, low level laser therapy increased the expression of TGF-b1.

scholarly journals The Effect of Low Reactive-Level Laser Therapy (LLLT) with Helium-Neon Laser on Operative Wound Healing in a Rat Model

2007 ◽  
Vol 69 (8) ◽  
pp. 799-806 ◽  
Author(s):  
Akio YASUKAWA ◽  
Haruki HRUI ◽  
Yoshihisa KOYAMA ◽  
Masahiro NAGAI ◽  
Kazuo TAKAKUDA
Keyword(s):  
Wound Healing ◽  
Laser Therapy ◽  
Rat Model ◽  
Neon Laser ◽  
Level Laser ◽  
Helium Neon Laser ◽  
Helium Neon ◽  
Operative Wound

Assessment of healing of dental implant surgical site following Low-Level Laser Therapy using Bio-Clinical parameters: An Exploratory Study

2020 ◽  
Author(s):  
VARSHA PALLED ◽  
DR. JITENDRA RAO ◽  
DR. RAGHUWAR DAYAL SINGH ◽  
DR. SHUCHI TRIPATHI ◽  
DR. KALPANA SINGH ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Test Group ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Clinical Parameters ◽  
Implant Stability ◽  
Low Level ◽  
Implant Stability Quotient ◽  
Low Level Laser ◽  
Level Laser

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.

Physical and Mathematical Considerations About Laser Perimetry

1974 ◽  
Vol 23 (S1) ◽  
pp. 349-351 ◽  
Author(s):  
L. Favella ◽  
L. Liuzzi ◽  
F. Bartoli
Keyword(s):  
White Light ◽  
Laser Light ◽  
Monochromatic Light ◽  
Neon Laser ◽  
Helium Neon Laser ◽  
Helium Neon ◽  
Mathematical Characteristics

The physical and mathematical characteristics of white light, monochromatic light, and laser light, are discussed with reference to the advantages offered by perimetry using a red helium-neon laser.

scholarly journals Effects of Low-Level Laser Therapy, 660 nm, in Experimental Septic Arthritis

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Bruna Formentão Araujo ◽  
Lígia Inez Silva ◽  
Anamaria Meireles ◽  
Camila Thieimi Rosa ◽  
Nereida Mello da Rosa Gioppo ◽  
...  
Keyword(s):  
Synovial Fluid ◽  
Septic Arthritis ◽  
Laser Therapy ◽  
Inflammatory Infiltrate ◽  
Morphological Analysis ◽  
Low Level Laser Therapy ◽  
Infectious Process ◽  
Low Level Laser ◽  
Level Laser ◽  
The Right

The effectiveness of low-level laser therapy (LLLT) in the presence of an infectious process has not been well elucidated. The aim of the study was to evaluate the effects of LLLT in an experimental model of septic arthritis. Methods. Twenty-one Wistar rats were divided as follows: control group, no bacteria; placebo group, bacteria were inoculated; Treated group, bacteria were injected and treatment with LLLTwas performed. To assess nociception, a von Frey digital analgesimeter was applied. Synovial fluid was streaked to analyze bacterial growth. The standard strain of S. aureus was inoculated in the right knee. LLLT was performed with 660 nm, 2 J/cm2, over 10 days. After treatment, the knees were fixed and processed for morphological analysis by light microscopy. Results. It was found that nociception increases in the right knee. There was a lack of results for the seeding of the synovial fluid. The morphological analysis showed slight recovery areas in the articular cartilage and synovia; however, there was the maintenance of the inflammatory infiltrate. Conclusion. The parameters used were not effective in the nociception reduction, even with the slight tissue recovery due to the maintenance of inflammatory infiltrate, but produced no change in the natural history of resolution of the infectious process.

Photographing helium–neon laser light

1992 ◽  
Vol 60 (6) ◽  
pp. 571-571 ◽  
Author(s):  
John R. de Bruyn ◽  
R. Bradley
Keyword(s):  
Laser Light ◽  
Neon Laser ◽  
Helium Neon Laser ◽  
Helium Neon
Sign in / Sign up

Export Citation Format

Share Document