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Brazilian Oral Research 2021There are several studies that evaluate the use of lasers in periodontal treatment in non-surgical or surgical therapy. However, while several studies showed clinically... (Review)
Review
There are several studies that evaluate the use of lasers in periodontal treatment in non-surgical or surgical therapy. However, while several studies showed clinically beneficial effects of some lasers in periodontal treatment, there are few clinical reports of additional advantages of lasers as adjunctive treatments in periodontology. The aim of this paper is to demonstrate and critically analyze the level of scientific evidence of effects of low-level lasers and high-power lasers in periodontology. A narrative review of the studies was carried out in each topic and type of laser or periodontal treatment. In nonsurgical periodontal therapy the results showed that there is an additional clinical benefit when using a diode laser (DL) associated with scaling and root planing (SRP) in patients with moderate to severe periodontitis. The Er:YAG laser seems to be the most suitable for nonsurgical periodontal therapy and promotes the same clinical effects as conventional therapy. In periodontal surgery vaporization of the gingival or mucosal tissue can be carried out with DL, CO2, Nd:YAG, Er:YAG and Er,Cr:YSGG lasers. Photobiomodulation (PBM), mediated by low-level lasers associated with non-surgical periodontal therapy, promotes additional benefits in the short term and accelerates the bone and gingival tissue repair process and also reduces postoperative symptoms of periodontal surgery. The effect of antimicrobial Photodynamic Therapy is relevant in the initial reevaluation periods. Studies have shown controversial results of the use of lasers in periodontics, and this fact may be due to the lack of standard parameters of irradiation in each clinical application.
Topics: Chronic Periodontitis; Dental Scaling; Humans; Laser Therapy; Lasers, Semiconductor; Lasers, Solid-State; Periodontitis; Root Planing
PubMed: 34586213
DOI: 10.1590/1807-3107bor-2021.vol35.0099 -
Lasers in Medical Science May 2017The aim of this systematic review was to assess a potential benefit of laser use in the treatment of recurrent aphthous stomatitis (RAS). The primary outcome variables... (Meta-Analysis)
Meta-Analysis Review
The aim of this systematic review was to assess a potential benefit of laser use in the treatment of recurrent aphthous stomatitis (RAS). The primary outcome variables were pain relief, duration of wound healing and reduction in episode frequency. A PICO approach was used as a search strategy in Medline, Embase and Cochrane databases. After scanning and excluding titles, abstracts and full texts, 11 studies (ten RCTs and one non-randomised controlled trial) were included. Study selection and data extraction was done by two observers. Study participants varied between 7-90 for the laser and 5-90 for the control groups. Laser treatment included Nd:YAG laser ablation, CO laser applied through a transparent gel (non-ablative) and diode laser in a low-level laser treatment (LLLT) mode. Control groups had placebo, no therapy or topical corticosteroid treatment. Significant pain relief immediately after treatment was found in five out of six studies. Pain relief in the days following treatment was recorded in seven studies. The duration of RAS wound healing was also reduced in five studies. However, criteria of evaluation differed between the studies. The episode frequency was not evaluated as only one study addressed this outcome parameter, but did not discriminate between the study (LLLT) and control (corticosteroid) groups. Jadad scores (ranging from 0 to 5) for quality assessment of the included studies range between 0 and 2 (mean = 1.0) for studies analysing pain relief and between 0 and 3 (mean = 1.1) for studies evaluating wound healing. The use of lasers (CO laser, Nd:YAG laser and diode laser) to relieve symptoms and promote healing of RAS is a therapeutic option. More studies for laser applications are necessary to demonstrate superiority over topical pharmaceutical treatment and to recommend a specific laser type, wavelength, power output and applied energy (ablative versus photobiomodulation).
Topics: Humans; Laser Therapy; Lasers, Gas; Lasers, Semiconductor; Lasers, Solid-State; Pain; Recurrence; Stomatitis, Aphthous; Wound Healing
PubMed: 28345122
DOI: 10.1007/s10103-017-2184-z -
Medicine Nov 2019Laser systems are a common treatment choice for onychomycosis. They exert their effects on inhibiting the growth of the fungus by selective photothermolysis but efficacy... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Laser systems are a common treatment choice for onychomycosis. They exert their effects on inhibiting the growth of the fungus by selective photothermolysis but efficacy is dependent on the specific type of apparatus used. To systematically review the available published literature on the curative effects and safety of laser treatment for onychomycosis.
METHODS
Databases including PubMed, web of science, China National Knowledge Internet (CNKI), WanFang Database and VIP were searched systematically to identify relevant articles published up to July 2018. Potentially relevant articles were sourced, assessed against eligibility criteria by 2 researchers independently and data were extracted from included studies. A meta-analysis was performed using R software.
RESULTS
Thirty-five articles involving 1723 patients and 4278 infected nails were included. Meta-analysis of data extracted from these studies revealed that: the overall mycological cure rate was 63.0% (95%CI 0.53-0.73); the mycological cure rate associated with the 1064-nm Nd: YAG laser was 63.0% (95%CI 0.51-0.74); and that of CO2 lasers was 74.0% (95%CI 0.37-0.98). The published data indicate that laser treatment is relatively safe, but can cause tolerable pain and occasionally lead to bleeding after treatment.
CONCLUSION
Laser treatment of onychomycosis is effective and safe. The cumulative cure rate of laser treatment was significantly higher for CO2 lasers than other types of laser. Laser practitioners should be made aware of potential adverse effects such as pain and bleeding.
Topics: Humans; Lasers, Gas; Lasers, Solid-State; Low-Level Light Therapy; Nails; Onychomycosis; Randomized Controlled Trials as Topic; Treatment Outcome
PubMed: 31770202
DOI: 10.1097/MD.0000000000017948 -
Indian Journal of Dermatology,... 2019The Q-switched Nd:YAG laser is an established modality of treatment for epidermal and dermal pigmented lesions. The dual wavelengths of 1064nm and 532nm are suited for... (Review)
Review
The Q-switched Nd:YAG laser is an established modality of treatment for epidermal and dermal pigmented lesions. The dual wavelengths of 1064nm and 532nm are suited for the darker skin tones encountered in India. Though this laser has become the one of choice for conditions such as nevus of Ota, Hori's nevus and tattoos, its role in the management of melasma and other acquired dermal melanoses is not clear. Despite several studies having been done on the Q-switched Nd:YAG laser in melasma, there is no consensus on the protocol or number of sessions required. Acquired dermal melanoses are heterogenous entities with the common features of pigment incontinence and dermal melanophages resulting in greyish macular hyperpigmentation. This article reviews the current literature on laser toning in melasma and the role of the Q-switched Nd:YAG laser in stubborn pigmentary disorders such as lichen planus pigmentosus. As the pathology is primarily dermal or mixed epidermal-dermal in these conditions, the longer wavelength of 1064nm is preferred due to its deeper penetration. Generally multiple sessions are needed for successful outcomes. Low fluence Q-switched Nd:YAG laser at 1064nm utilizing the multi-pass technique with a large spot size has been suggested as a modality to treat melasma. Varying degrees of success have been reported but recurrences are common on discontinuing laser therapy. Adverse effects such as mottled hypopigmentation have been reported following laser toning; these can be minimized by using larger spot sizes of 8 to 10mm with longer intervals (2 weeks) between sessions.
Topics: Female; Humans; Laser Therapy; Lasers; Lasers, Solid-State; Male; Melanosis; Skin Pigmentation
PubMed: 30027914
DOI: 10.4103/ijdvl.IJDVL_1086_16 -
Journal of Refractive Surgery... Sep 2022
Topics: Corneal Surgery, Laser; Humans; Lasers, Excimer
PubMed: 36098389
DOI: 10.3928/1081597X-20220817-01 -
Topics in Current Chemistry (Cham) May 2023Patterning is crucial for the large-scale application of functional materials. Laser-induced transfer is an emerging patterning method for additively depositing... (Review)
Review
Patterning is crucial for the large-scale application of functional materials. Laser-induced transfer is an emerging patterning method for additively depositing functional materials to the target acceptor. With the rapid development of laser technologies, this laser printing method emerges as a versatile method to deposit functional materials in either liquid or solid format. The emerging applications such as solar interfacial evaporation, solar cells, light-emitting diodes, sensors, high-output synthesis, and other fields are rising fields benefiting from laser-induced transfer. Following a brief introduction to the principles of laser-induced transfer, this review will comprehensively deliberate this novel additive manufacturing method, including preparing the donor layer and the applications, advantages, and limitations of this technique. Finally, perspectives for handling current and future functional materials using laser-induced transfer will also be discussed. Non-experts in laser technologies can also gain insights into this prevailing laser-induced transfer process, which may inspire their future research.
Topics: Lasers; Software
PubMed: 37212928
DOI: 10.1007/s41061-023-00429-6 -
Retina (Philadelphia, Pa.) Sep 2016
Topics: Consumer Product Safety; Eye Injuries; Humans; Lasers; Product Labeling; Retina
PubMed: 27533775
DOI: 10.1097/IAE.0000000000001253 -
Lasers in Medical Science Dec 2022Effective treatment for traumatic tattoo is lacking. We aimed to compare the effectiveness and safety between Q-1064 nm laser as monotherapy and alternating Q-1064 nm...
Effective treatment for traumatic tattoo is lacking. We aimed to compare the effectiveness and safety between Q-1064 nm laser as monotherapy and alternating Q-1064 nm laser with CO AFL in treating traumatic facial tattoo (black or blue color) and accompanied scars. Clinical data of 98 patients were grouped and analyzed based on the different treatment lasers. Tattoo clearance was evaluated with a 4-point scale, and scar improvement was analyzed with modified VOSAS scores. Patient satisfaction of the tattoo clearance and scar improvement, and treatment-related complications were analyzed. Significant increased clinical effects with patient satisfaction and decreased worsened scar were confirmed with the two alternated lasers, relative to those with Q-1064 nm laser alone (P < 0.05). Consequently, alternating Q-1064 nm laser and CO AFL treatment could be used for traumatic facial tattoo with black or blue color removal safely and effectively.
Topics: Humans; Tattooing; Cicatrix; Carbon Dioxide; Lasers, Solid-State; Treatment Outcome; Lasers, Gas; Laser Therapy
PubMed: 36580127
DOI: 10.1007/s10103-022-03658-1 -
Current Opinion in Urology Sep 2021To summarize and comment on publications of the last 2 years in the field of endoscopic surgery for benign prostatic enlargement, focusing on similarities and... (Review)
Review
PURPOSE OF REVIEW
To summarize and comment on publications of the last 2 years in the field of endoscopic surgery for benign prostatic enlargement, focusing on similarities and differences of laser and electrosurgery.
RECENT FINDINGS
Because of good hemostasis and safety, invasive endoscopic surgery has evolved to a choice of treatment for vulnerable patients with ongoing antithrombotic medication and in same-day surgery. Recent publications show a good perioperative course and no deterioration in the postoperative outcome. Furthermore, alterations to the original surgical techniques of resection, enucleation, and vaporization have increased the preservation rate for antegrade ejaculation, advancing them to an appealing choice of treatment for sexually active men. Favorable outcomes can be achieved in both laser and electrosurgery. Only the choice of the surgical technique determines the outcome.
SUMMARY
Various invasive endoscopic surgical techniques are available, offering different advantages and disadvantages for the patient. All of them can be performed with laser and electrosurgery. Therefore, focusing on the proper choice of surgical technique instead of the energy source will guarantee the patient to benefit most.
Topics: Electrosurgery; Humans; Lasers; Male; Prostatic Hyperplasia; Transurethral Resection of Prostate; Treatment Outcome
PubMed: 34265843
DOI: 10.1097/MOU.0000000000000917 -
International Journal of Molecular... May 2023Since their invention by Theodore Maiman in 1960, lasers represent a class of light sources based on the stimulated emission of radiation in the visible, ultraviolet or...
Since their invention by Theodore Maiman in 1960, lasers represent a class of light sources based on the stimulated emission of radiation in the visible, ultraviolet or infrared spectral range [...].
Topics: Lasers; Biological Science Disciplines
PubMed: 37239881
DOI: 10.3390/ijms24108526