Engraving and Cutting of Plastic Material Parts Using Low-Power Lasers

This paper presents some of the authors� theoretical and experimental research related to the use of low-power lasers (diode laser) for the engraving, photoengraving and cutting of the parts made of plastics. There shall be presented the research carried out using a small machine, covering a net area of 150x150mm2. Small-sized companies or the persons having such pursuits can afford this type of machines. The authors also put forward several solutions to improve the performance of such machines by introducing at least one new axis of the �Z� or �A� type.

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Experimental Research of Rat Retina Injury Induced by Low Power Laser Irradiation

Applied laser ◽

10.3788/al20123206.548 ◽

2012 ◽

Vol 32 (6) ◽

pp. 548-551

Author(s):

梁洁 Liang Jie ◽

陈鹏 Chen Peng ◽

王少霞 Wang Shaoxia ◽

方毅 Fang Yi ◽

康宏向 Kang Hongxiang ◽

...

Keyword(s):

Low Power ◽

Laser Irradiation ◽

Experimental Research ◽

Power Laser ◽

Rat Retina

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Experimental Research of Rat Retina Injury Induced by Low Power Laser Irradiation

Applied laser ◽

10.3788/al20123206.0548 ◽

2012 ◽

Vol 32 (6) ◽

pp. 548-551

Author(s):

梁洁 Liang Jie ◽

陈鹏 Chen Peng ◽

王少霞 Wang Shaoxia ◽

方毅 Fang Yi ◽

康宏向 Kang Hongxiang ◽

...

Keyword(s):

Low Power ◽

Laser Irradiation ◽

Experimental Research ◽

Power Laser ◽

Rat Retina

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The effects of photobiomodulation therapy for the treatment of dentin hypersensitivity

Clinical and Laboratorial Research in Dentistry ◽

10.11606/issn.2357-8041.clrd.2020.162971 ◽

2020 ◽

Author(s):

Erika Michele dos Santos Araújo ◽

Bárbara Fávero Araújo Lima ◽

Júlia Gomes Lúcio de Araújo ◽

Fernanda Cristina Nogueira Rodrigues ◽

Stella Ferreira do Amaral ◽

...

Keyword(s):

Case Report ◽

Visual Analogue Scale ◽

Low Power ◽

Diode Laser ◽

Male Patient ◽

Analogue Scale ◽

Dentin Hypersensitivity ◽

Cervical Lesions ◽

Patient Reported ◽

Power Diode

Objective: This case report proposes a treatment for dentin hypersensitivity (DH) using photobiomodulation (PBT) with low power diode laser. Methods and Results: Male patient, 28 years old, reporting “dental sensitivity,” diagnosed by anamnesis and intraoral examination, with non-carious cervical lesions (NCCL) and DH on teeth 15 to 25, with different pain intensities, measured with visual analogue scale (VAS). For DH treatment, a PBT was proposed, with 808nm, 100mW, 20s and 2J of energy, applied during 3 sessions, with one-week interval and reevaluation after 30 days. After the first session, the patient reported improvement of sensitivity in all teeth, except for 15, that remained sensitive even during the reevaluation. Conclusion: PBT was effective in DH treatment, with desensitization being observed for 30 days in 90% of treated teeth.

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Activation of C-fiber nociceptors by low-power diode laser

Arquivos de Neuro-Psiquiatria ◽

10.1590/0004-282x20160018 ◽

2016 ◽

Vol 74 (3) ◽

pp. 223-227 ◽

Cited By ~ 2

Author(s):

Eduardo Azevedo ◽

Andressa Silva ◽

Raquel Martins ◽

Monica L. Andersen ◽

Sergio Tufik ◽

...

Keyword(s):

Low Power ◽

Evoked Potentials ◽

Diode Laser ◽

Laser Evoked Potentials ◽

Non Invasive ◽

C Fibers ◽

C Fiber ◽

The Mean ◽

Young Subjects ◽

Power Diode

ABSTRACT Objective The evaluation of selective activation of C-fibers to record evoked potentials using the association of low-power diode laser (810 nm), tiny-area stimulation and skin-blackening. Method Laser-evoked potentials (LEPs) were obtained from 20 healthy young subjects. An aluminum plate with one thin hole was attached to the laser probe to provide tiny-area stimulation of the hand dorsum and the stimulated area was covered with black ink. Results The mean intensity used for eliciting the ultra-late laser-evoked potential (ULEP) was 70 ± 32 mW. All subjects showed a clear biphasic potential that comprised a negative peak (806 ± 61 ms) and a positive deflection (1033 ± 60 ms), corresponding to the ULEP related to C-fiber activation. Conclusion C-fiber-evoked responses can be obtained using a very low-power diode laser when stimulation is applied to tiny areas of darkened skin. This strategy offers a non-invasive and easy methodology that minimizes damage to the tissue.

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