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Статті в журналах з теми "Pilote de diode laser"

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Автор: Grafiati

Опубліковано: 28 вересня 2022

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1

Sfasciotti, Gian Luca, Francesca Zara, Iole Vozza, Veronica Carocci, Gaetano Ierardo, and Antonella Polimeni. "Diode versus CO2 Laser Therapy in the Treatment of High Labial Frenulum Attachment: A Pilot Randomized, Double-Blinded Clinical Trial." International Journal of Environmental Research and Public Health 17, no. 21 (October 22, 2020): 7708. http://dx.doi.org/10.3390/ijerph17217708.

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Background: The labial frenula are triangular plicas departing from the alveolar mucosa and attaching themselves at different heights of the gingiva. Sometimes a high attachment can determine a gingival recession. The most suitable surgical resolution is the use of laser devices. The aim of this study was to compare the labial frenulectomy through the use of Diode and CO2 laser techniques in pediatric patients with a high labial frenulum attachment, clarifying at the same time the preventive role of the surgical treatment to avoid further recession. Methods: A pilot randomized, double-blinded clinical trial was conducted to compare both the surgical advantages and the preventive treatment of laser technology using two different wavelengths within a population of pediatric patients with a high labial frenulum attachment. Different parameters intra and post-surgery were taken into account (Bleeding, Wound Healing, Gingival Recession, Periodontal pocket and Numerical Scale Value for pain) to compare Diode versus CO2 laser therapy. Results: Although both the laser devices provide a good performance in the post-operative period, the Diode laser shows better results (p < 0.001) in three of the five parameters evaluated. Conclusions: From the results it was found that the Diode Laser device is more suitable compared to the CO2 device.

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2

Odor, Alin Alexandru, Edwin Sever Bechir, Deborah Violant, and Victoria Badea. "Antimicrobial Effect of 940 nm Diode Laser based on Photolysis of Hydrogen Peroxide in the Treatment of Periodontal Disease." Revista de Chimie 69, no. 8 (September 15, 2018): 2081–88. http://dx.doi.org/10.37358/rc.18.8.6478.

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Moderate and severe periodontitis represents a challenge in the non-surgical periodontal therapy. Due to the lack of evidence regarding the antimicrobial effectiveness of 940 nm diode laser in periodontal treatment, this study aimed to evaluate the antimicrobial effect of hydrogen peroxide (H2O2) photolysis performed with 940 nm diode laser in the treatment of moderate and severe periodontitis. Twenty-five patients with 100 teeth were selected for this pilot study. The test teeth were randomly assigned to one of the four treatment groups: Group 1: scaling and root planning (SRP) (control group); and the following experimental groups: Group 2: H2O2; Group 3: 940 nm diode laser therapy; Group 4: 940 nm diode laser therapy and H2O2. Clinical examinations, like probing depth (PD), clinical attachment level (CAL) and bleeding on probing (BOP) were performed before and after the treatment. The microbiological evaluation, effectuated before and after the treatment, included nine periodontal bacteria species and investigated by means of real-time PCR assay. The clinical and bacterial differences in the tested groups, was assessed between control group and the other three experimental groups, as well as between the experimental groups. The total bacteria load was reduced for all four studied groups. Group 4 (diode laser + H2O2) showed significant bacterial reduction of the major periodontal bacteria like Pg., Tf., Td., Pi., Pm., Fn (p[0.001) than the other 3 groups (p]0.001). Also the periodontal clinical parameters, like PD, CAL and BOP showed a significant reduction after the photolysis of H2O2 with the 940 nm diode laser (p[0.001). Differences between tested groups showed a significant beneficial results in regard to Group 4.It is suggested that the photoactivation of H2O2 with the 940 nm diode laser can be used successfully in adjunctive to the non-surgical periodontal treatment as a bactericidal tool.

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3

Grigio, Geise da Silva, Ricardo Yudi Tateno, Luiz Felipe Palma, Caleb Shitsuka, Wilson Roberto Sendyk, and Luana Campos. "High-power diode laser for second-stage implant surgery: a randomized pilot clinical trial." Research, Society and Development 9, no. 7 (May 5, 2020): e128974122. http://dx.doi.org/10.33448/rsd-v9i7.4122.

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The present study aimed to compare the conventional scalpel technique and the use of a high-power diode laser for second-stage implant surgery. For that, fifteen patients were randomly assigned to receive either the conventional scalpel technique (Control Group, n = 7) or a diode laser-assisted technique (Laser Group, n = 8) for second-stage surgery of submerged dental implants placed at bone level. The local anesthetic amount required, and the total surgical time was determined just after surgery. Local pain, peri-implant mucosa status, and bleeding were assessed at the end of the surgery and after 7 and 15 days. Information on the need for postoperative pain medication on the first day and during the next two weeks was also gathered. The surgical time was significantly shorter in the Laser Group (P = 0.001) and only the Control Group presented bleeding at the end of surgery and on the seventh day (P = <0.001, P = 0.026). The other evaluations did not show differences between the groups. Within the limitations of the present pilot study and in comparison to clinical outcomes of the conventional scalpel technique, the use of a high-power diode laser seems to be slightly advantageous for the second-stage implant surgery.

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4

Luisa Navarrete, María, Rafael Boemo, Mohamed Darwish, Jesús Monzón, and Pedro Rojas. "Pilot study on the diode laser in stapes surgery." Acta Otorrinolaringologica (English Edition) 61, no. 6 (January 2010): 434–36. http://dx.doi.org/10.1016/s2173-5735(10)70080-6.

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5

Khan, Mansur Ali, Sadhana Joshi, and Ashutosh Gupta. "Micropulse diode laser versus bevacizumab in chronic central serous chorioretinopathy: a pilot study." International Journal of Clinical Trials 4, no. 2 (April 26, 2017): 96. http://dx.doi.org/10.18203/2349-3259.ijct20171920.

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<p class="abstract"><strong>Background:</strong> Central serous chorioretinopathy (CSC) is an idiopathic condition with an illdefined aetiopathogenesis and no clearly effective treatment. The choice of treatment include thermal laser photocoagulation, photodynamic therapy (PDT), subthreshold micropulse laser and anti VEGF<span lang="EN-IN">. </span></p><p class="abstract"><strong>Methods:</strong> In a prospective nonrandomized pilot trial we evaluated two of these modalities subthreshold micropulse laser treatment and intravitreal anti VEGF in 20 consecutive cases of non-resolving CSC of duration 3 to 6 months with vision below 6/12 treated with either Bevacizumab for leakage close to fovea or subthreshold micropulse 810 diode laser for extrafoveal leakage (10% duty cycle, 100 µ spot size) as seen on fluorescein angiography<span lang="EN-IN">.</span></p><p class="abstract"><strong>Results:</strong> At 6 months follow up complete resolution was seen in 9/10 in laser and 6/10 in Avastin group. The mean visual acuity improved from Log MAR 0.61 ± 0.17 at baseline to Log MAR 0.07± 0.11 post treatment in laser group and from Log MAR 0.59 ± 0.17 to Log MAR 0.18 ± 0.09 in the Avastin group . Similarly mean central macular thickness decreased from 607 µ ± 162.1 to 206 µ ± 55 in laser group and from 601 µ ± 182 to 262 µ ± 75 in those receiving Avastin. Both visual outcome and resolution of serous detachment was better with Micropulse laser as compared to Bevacizumab<span lang="EN-IN">. </span></p><p class="abstract"><strong>Conclusions:</strong> Micropulse diode laser treatment of CSC has higher rate of resolution and better visual outcome as compared to Bevacizumab injections.</p>

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6

Praveen, Kotu, Gajendra Veeraraghavan, Reddy Reddy, Pavani Kotha, Jyothirmai Koneru, and Kalyan Yelisetty. "Management of Oral Leukoplakia Using Diode Laser: A Pilot Study." British Journal of Medicine and Medical Research 10, no. 7 (January 10, 2015): 1–6. http://dx.doi.org/10.9734/bjmmr/2015/19178.

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7

Fini Storchi, Isabelle, Massimo Frosecchi, Francesca Bovis, Angelina Zekiy, Stefano Benedicenti, Andrea Amaroli, and Robert A. Convissar. "Snoring and Sleep-Related Symptoms: A Novel Non-Invasive 808 nm Wavelength Diode Laser Non-Ablative Outpatient Treatment. A Prospective Pilot-Study on 45 Patients." Photonics 8, no. 3 (March 3, 2021): 69. http://dx.doi.org/10.3390/photonics8030069.

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Background: Surgical treatments for snoring and sleep-related symptoms are invasive, may have complications, have inconstant success rates, and may have a significant relapse rate. Methods: We evaluated the effectiveness of a non-surgical, non-invasive outpatient 808 nm diode laser treatment. Forty-five patients with snoring and sleep disorders were treated with an Elexxion-Claros® 50W Diode Laser 808-nm using the specific SNORE3 application. The possible presence of obstructive sleep apnea syndrome in patients was diagnosed with Polysomnography. The Epworth sleepiness scale was reported pre- and post-laser treatments. Patients were classified according to both Friedman tongue position and Mallampati classification. During treatment, the pain reported by patients was measured on a visual analogue scale. Results: The following data improved significantly: visual analogue scale for the loudness of snoring, Epworth sleepiness scale, waking up during sleep because of snoring, dreaming during the night, dry mouth on awakening, daytime sleepiness, tiredness on awakening, Mallampati score, Friedman tongue position and degree of oropharynx at nose, oropharynx, hypopharynx, and larynx classification (p < 0.001). A cessation of choking in 89% of the patients and of restless legs syndrome in 83% of the patients (p ≤ 0.005 and p ≤ 0.025) was also noted after the laser treatments. All of the patients who reported suffering from headaches upon waking (10 subjects) reported the complete cessation of this phenomenon after laser therapy. Conclusions: diode laser treatment is a promising procedure not only in reducing the loudness of snoring, but also in raising the global quality of sleep, a statistically significant reduction of AHI, and a cessation of bothersome phenomenon related to apnea. Results were sustainable at one year post-treatment.

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8

Yaremenko, A. I., A. Yu Zernitskiy, S. I. Kutukova, E. A. Zernitskaya, A. I. Stolyarova, and L. O. Anisimova. "Pilot in vivo animal study of bone regeneration by Laser Patterned Microcoagulation technology." Parodontologiya 25, no. 2 (May 16, 2020): 90–96. http://dx.doi.org/10.33925/1683-3759-2020-25-2-90-96.

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Relevance. Fractional laser technologies are very popular. The ability to create microchannels (coagulation or ablative nature) in the tissue by laser radiation stimulating its regeneration is the basis of fractional technology. The histological structure of the rabbit parietal bone during its regeneration after Laser Patterned Microcoagulation treatment was investigated by hematoxylin and eosin (H&E) stain.Purpose. This in vivo study investigated the regeneration of the rabbit’s parietal bone after fractional laser treatment using diode lasers with wavelengths 980 nm and 1550 nm.Materials and methods. A study was performed on the bone tissue of 10 laboratory animals (rabbits) using laser fractional treatment with wavelengths 1.55 and 0.98 μm. As laboratory animals (rabbits) were used Soviet chinchillas weighing 2.5-3 kg. 2 different lasers were used: FONALaser (Sirona Dental Systems, Germany) with a wavelength of 980 nm, a power of 5 W and a laser surgical device (LSP “IRE-Polyus”, Russia) with a wavelength of 1550 nm, a power of 25 W and a pulse width range from 60 to 250 ms.Results. On day 21, the thickness of the periosteum in the group with a wavelength of 980 nm did not significantly differ from the thickness of the periosteum in the group with a wavelength of 1550 nm – p = 0.4000. On the 45th day of observation, there were also no significant differences in the thickness of the periosteum between both groups – p = 0.2000.Conclusion. It was shown that the most destruction processes were noted by laser with a wavelength 1550 nm in the experiment without periosteum. The smallest changes were noted by laser with a wavelength 980 nm in the presence of periosteum. In this study, in 6 cases out of 10, the formation of young bone tissue as thin strip form at the bottom of the lesion site was noted.

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9

Haller, Julia A. "Pilot Trial of Transscleral Diode Laser Retinopexy in Retinal Detachment Surgery." Archives of Ophthalmology 111, no. 7 (July 1, 1993): 952. http://dx.doi.org/10.1001/archopht.1993.01090070070022.

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10

Schubert, Hermann D. "Pilot Trial of Transscleral Diode Laser Retinopexy in Retinal Detachment Surgery." Archives of Ophthalmology 112, no. 5 (May 1, 1994): 579. http://dx.doi.org/10.1001/archopht.1994.01090170023008.

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11

Key, Daryl, Edward Letts, Chuan-Wei Tsou, Mi-Hee Ji, Marzieh Bakhtiary-Noodeh, Theeradetch Detchprohm, Shyh-Chiang Shen, Russell Dupuis, and Tadao Hashimoto. "Structural and Electrical Characterization of 2” Ammonothermal Free-Standing GaN Wafers. Progress toward Pilot Production." Materials 12, no. 12 (June 14, 2019): 1925. http://dx.doi.org/10.3390/ma12121925.

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Free-standing gallium nitride (GaN) substrates are in high demand for power devices, laser diodes, and high-power light emitting diodes (LEDs). SixPoint Materials Inc. has begun producing 2” GaN substrates through our proprietary Near Equilibrium AmmonoThermal (NEAT) growth technology. In a single 90 day growth, eleven c-plane GaN boules were grown from free-standing hydride vapor phase epitaxy (HVPE) GaN substrates. The boules had an average X-ray rocking curve full width at half maximum (FWHM) of 33 ± 4 in the 002 reflection and 44 ± 6 in the 201 reflection using 0.3 mm divergence slits. The boules had an average radius of curvature of 10.16 ± 3.63 m. The quality of the boules was highly correlated to the quality of the seeds. A PIN diode grown at Georgia Tech on a NEAT GaN substrate had an ideality factor of 2.08, a high breakdown voltage of 1430 V, and Baliga’s Figure of Merit of >9.2 GW/cm2. These initial results demonstrate the suitability of using NEAT GaN substrates for high-quality MOCVD growth and fabrication of high-power vertical GaN switching devices.

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12

Haller, Julia A. "Pilot Trial of Transscleral Diode Laser Retinopexy in Retinal Detachment Surgery-Reply." Archives of Ophthalmology 112, no. 5 (May 1, 1994): 580. http://dx.doi.org/10.1001/archopht.1994.01090170023009.

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13

Nappi, Luigi, Alessandro Pontis, Felice Sorrentino, Pantaleo Greco, and Stefano Angioni. "Hysteroscopic metroplasty for the septate uterus with diode laser: a pilot study." European Journal of Obstetrics & Gynecology and Reproductive Biology 206 (November 2016): 32–35. http://dx.doi.org/10.1016/j.ejogrb.2016.08.035.

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14

Pinto, Nathali Cordeiro, Fernando Campos Gomes Pinto, Eduardo Joaquim Lopes Alho, Elisabeth Matheus Yoshimura, Vera Lucia Jornada Krebs, Manoel Jacobsen Teixeira, and Maria Cristina Chavantes. "Pilot study in neonates using low-level laser therapy in the immediate postoperative period of myelomeningocele." Einstein (São Paulo) 8, no. 1 (March 2010): 5–9. http://dx.doi.org/10.1590/s1679-45082010ao1441.

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ABSTRACT Objective: To analyze the tissue repair behavior after corrective surgical incision in neonates submitted to low-level laser therapy, in an attempt to diminish the incidence of postoperative dehiscence following the surgery for myelomeningocele performed immediately after birth. Methods: It is a prospective pilot study with 13 myelomeningocele patients submitted to surgery at birth who received adjuvant treatment with low-level laser therapy (Group A). Diode laser C.W., λ = 685t nm, p = 21 mW, E = 0.19 J was punctually applied along the surgical incision, summing up 4 to 10 J energy delivered per patient, according to the surgical wound area and, then, compared with the previous results, which were obtained from 23 patients undergoing surgery without laser therapy (Group B). Results: This pilot study showed a significant decline in dehiscence of surgical wounds in neonates submitted to low-level laser therapy as compared to controls (7.69 versus 17.39%, respectively), demonstrating this is an effective, safe and noninvasive treatment method. conclusion: This new adjuvant therapeutic proposal with low-level laser therapy aided healing of surgical wounds, preventing morbidities, as well as decreasing hospital stay, which implies cost of reduction for patients and for the institution.

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15

Krespi, Yosef P., and Victor Kizhner. "Palatal stiffening via transoral, retrograde interstitial laser coagulation." Surgical Techniques Development 1, no. 2 (October 10, 2011): 23. http://dx.doi.org/10.4081/std.2011.e23.

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Current treatment modalities for snoring may include mucosal removal, coblation or radiofrequency palatoplasty, injection snoreplasty and placement of palatal implants with described disadvantages. We introduce a new laser assisted method avoiding intraoral injury. A pilot study treating 13 loud snorers having an RDI<8 was conducted. A diode laser coupled to a flexible fiberand a handle with curved needle was used. The fiber was introduced into the nasal surface of soft palate between palatoglossal and glossopharyngeal arches and advanced progressively anteriorly after pulling the uvula forward three times to create palatal scarring and stiffening. All responded to a phone survey. Six patients reported significant improvement, 4 had some improvement, 2 had mild improvement and one patient had no change. Pain score was moderate for 3 patients while the rest had mild pain. The laser harbors many advantages over other methods. Results with this technique are encouraging further studies.

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16

Roisman, Luiz, Fernanda Pedreira Magalhães, Daniel Lavinsky, Nilva Moraes, Flávio E. Hirai, José Augusto Cardillo, and Michel Eid Farah. "Micropulse Diode Laser Treatment for Chronic Central Serous Chorioretinopathy: A Randomized Pilot Trial." Ophthalmic Surgery, Lasers and Imaging Retina 44, no. 5 (September 1, 2013): 465–70. http://dx.doi.org/10.3928/23258160-20130909-08.

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17

Tatuskar, Pramod, Shanmugasundaram Shashikiran, and Narayan N. Valavalkar. "Evaluation of Efficacy of Diode Laser in Treating Hypersensitive Dentin: A Pilot Study." CODS Journal of Dentistry 11, no. 2 (2019): 36–39. http://dx.doi.org/10.5005/jp-journals-10063-0047.

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18

KIM, Beom Joon, Ho Gyun LEE, Seung Man WOO, Jai Il YOUN, and Dae Hun SUH. "Pilot study on photodynamic therapy for acne using indocyanine green and diode laser." Journal of Dermatology 36, no. 1 (January 2009): 17–21. http://dx.doi.org/10.1111/j.1346-8138.2008.00580.x.

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19

Kharadi, Usama A. Rashid, Sanjeev Onkar, Rajendra Birangane, Swapnali Chaudhari, Abhay Kulkarni, and Rohan Chaudhari. "Treatment of Oral Leukoplakia with Diode Laser: a Pilot Study on Indian Subjects." Asian Pacific Journal of Cancer Prevention 16, no. 18 (January 11, 2016): 8383–86. http://dx.doi.org/10.7314/apjcp.2015.16.18.8383.

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20

Capon, Alexandre C., Alban R. Gossé, Gwen N. K. Iarmarcovai, Alain H. Cornil, and Serge R. Mordon. "Scar Prevention by Laser-Assisted Scar Healing (LASH): A pilot study using an 810-nm diode-laser system." Lasers in Surgery and Medicine 40, no. 7 (September 2008): 443–45. http://dx.doi.org/10.1002/lsm.20657.

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21

MORITZ, A., N. GUTKNECHT, O. DOERTBUDAK, K. GOHARKHAY, U. SCHOOP, P. SCHAUER, and W. SPERR. "Bacterial Reduction in Periodontal Pockets Through Irradiation with a Diode Laser: A Pilot Study." Journal of Clinical Laser Medicine & Surgery 15, no. 1 (February 1997): 33–37. http://dx.doi.org/10.1089/clm.1997.15.33.

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22

Berardi, Davide, Simona De Benedittis, Andrea Scoccia, Giorgio Perfetti, and Pio Conti. "New laser-treated implant surfaces: A histologic and histomorphometric pilot study in rabbits." Clinical & Investigative Medicine 34, no. 4 (August 1, 2011): 202. http://dx.doi.org/10.25011/cim.v34i4.15361.

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Purpose: The purpose of this study was to confirm the validity of laser treated implant surfaces, with regard to high superficial purity preservation and to extremely regular and uniform roughness surfaces. Methods: In this in vivo study, seven different laser treated implant surfaces were analyzed. A diode-pumped solid state source laser, in a Q-Switch output mode, was used at various wavelengths, which were chosen to generate surface irregularities of varying diameter, depth and pitch. Twenty one implants were placed in 11 New Zealand rabbits. Eight weeks after surgery, implants were harvested for histometric analysis: total, threads and body bone-to-implant, and bone-to-implant contacts were measured. The morphologic analysis of the surface was carried out using a Scanning Electron Microscope. Results: Average bone-implant contact values were approximately 50% for all tested surfaces. Both total and threads values, within the same processing pattern group, had a high variance. Bone-implant contact thread and body variances were different, so that is possible that laser beam angle is able to modify the superficial roughness and thus the histological response. Conclusions: Implants provided with pores of 20 and 25 µm achieved more than satisfactory bone-implant contact partial peaks. Further statistically significant experiments are needed in order to study, in depth, these surfaces.

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23

Langella, Luciana Gonçalves, Andréa Oliver Gomes, Tamiris da Silva, Marcela Letícia Leal Gonçalves, Anna Carolina Ratto Tempestini Horliana, Lara Jansiski Motta, Raquel Agnelli Mesquita-Ferrari, Kristianne Porta Santos Fernandes, Alessandro Melo Deana, and Sandra Kalil Bussadori. "A comparative pilot study on the effects of laser and light-emitting diode therapy on pain in individuals with temporomandibular disorder." Research, Society and Development 11, no. 5 (April 12, 2022): e43111528463. http://dx.doi.org/10.33448/rsd-v11i5.28463.

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Temporomandibular disorder (TMD) is described as a subgroup of orofacial pain. Studies have demonstrated that phototherapy is an effective treatment option for TMD, leading to improvements in pain and orofacial function. To compare the effects of photobiomodulation with different light sources on pain and functioning in patients with TMD. Methods: A randomized, controlled, double-blind clinical trial (pilot study) was conducted with 15 individuals aged 18 years or older allocated to two photobiomodulation groups: laser and LED. Sessions were held twice a week for four weeks (total: eight sessions). The Research Diagnostic Criteria for Temporomandibular Disorders were used for the evaluation and Pain was measured using the Visual Analog Scale. Orofacial function was determined based on measures of mandibular movements. Photobiomodulation was administered to the temporomandibular joint, masseter (upper, middle and lower) and anterior temporal muscles. Results: Statistically significant differences in pain were found in the intra-group analyses (pre-treatment vs. post-treatment) in both groups (laser: p=0.0117; LED: p=0.0180). Statistically significant intra-group differences were found for maximum mouth opening without assistance and maximum mouth opening with assistance in the laser group (p= 0.0203 and 0.0001, respectively). The same was found in the LED group only regarding maximum mouth opening with assistance (p=0.0459). Statistically significant intra-group differences (pre-treatment vs. post-treatment) were found for lateral excursion to both sides in the laser group (right side: p=0.0209; left side: p=0.0005) and only to the left side in the LED group (p=0.0342). Conclusion: Photobiomodulation with laser and LED produce similar effects regarding improvements in TMD.

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24

Lanzetta, P., F. Furlan, L. Morgante, D. Veritti, and F. Bandello. "Nonvisible Subthreshold Micropulse Diode Laser (810 nm) Treatment of Central Serous Chorioretinopathy: A Pilot Study." European Journal of Ophthalmology 18, no. 6 (November 2008): 934–40. http://dx.doi.org/10.1177/112067210801800613.

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25

Friedman, Paul M., Ming H. Jih, Arash Kimyai-Asadi, and Leonard H. Goldberg. "Treatment of Inflammatory Facial Acne Vulgaris with the 1450-nm Diode Laser: A Pilot Study." Dermatologic Surgery 30, no. 2 (February 2004): 147–51. http://dx.doi.org/10.1111/j.1524-4725.2004.30062.x.

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26

Sepman, Alexey, Christian Fredriksson, Yngve Ögren, and Henrik Wiinikka. "Laser-Based, Optical, and Traditional Diagnostics of NO and Temperature in 400 kW Pilot-Scale Furnace." Applied Sciences 11, no. 15 (July 30, 2021): 7048. http://dx.doi.org/10.3390/app11157048.

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A fast sensor for simultaneous high temperature (above 800 K) diagnostics of nitrogen oxide (NO) concentration and gas temperature (T) based on the spectral fitting of low-resolution NO UV absorption near 226 nm was applied in pilot-scale LKAB’s Experimental Combustion Furnace (ECF). The experiments were performed in plasma and/or fuel preheated air at temperatures up to 1550 K, which is about 200 K higher than the maximal temperature used for the validation of the developed UV NO sensor previously. The UV absorption NO and T measurements are compared with NO probe and temperature measurements via suction pyrometry and tuneable diode laser absorption (TDL) using H2O transitions at 1398 nm, respectively. The agreement between the NO UV and NO probe measurements was better than 15%. There is also a good agreement between the temperatures obtained using laser-based, optical, and suction pyrometer measurements. Comparison of the TDL H2O measurements with the calculated H2O concentrations demonstrated an excellent agreement and confirms the accuracy of TDL H2O measurements (better than 10%). The ability of the optical and laser techniques to resolve various variations in the process parameters is demonstrated.

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Leite, Priscila, Nicole Melo, Pâmela Silva, Robinsom Montenegro, Paulo Bonan, and André Batista. "Low-level laser therapy for temporomandibular disorders (tmd) treatment: a systematic review of randomized trials." Journal of Research in Dentistry 2, no. 5 (September 1, 2014): 376. http://dx.doi.org/10.19177/jrd.v2e52014376-387.

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AIM: Conducting a systematic review of randomized clinical trials focusing on the efficacy of LLLT on pain control in patients with TMD, diagnosed by the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). MATERIAL AND METHODS: Search was performed at PubMed/MEDLINE database with the terms: (1) “Laser AND temporomandibular disorders”; (2) “Laser AND temporomandibular disorders AND RDC/TMD”; (3) “Low-level laser therapy AND temporomandibular disorders”; (4) “Low-level laser therapy AND temporomandibular disorders AND RDC/TMD”; (5) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome”; (6) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome AND RDC/TMD”; (7) “Laser AND temporomandibular joint dysfuntion syndrome” (8) “Laser AND RDC/TMD”; (9) “Low-level laser therapy AND RDC/TMD”. Inclusion criteria: articles need to be randomized clinical trial performed in humans; evaluate the effect of LLLT in the treatment of TMD diagnosed by the use of RDC/TMD; published in English or Portuguese in the last 10 years. Protocol studies and pilot studies were excluded. RESULTS: Ten studies were included. The type of laser used was Gallium Aluminum Arsenide (GaAlAs) diode, with exception of 1 paper, which used super pulsed Gallium Arsenide laser. Eight studies reported decreased in pain levels, in two articles there was no statistically significant difference between test and placebo groups. CONCLUSION: In most studies, LLLT was effective in pain remission, but there is no standardization in parameters like wavelength, output power and frequency. Studies with more complex experimental designs, standardized diagnostic criteria for TMD and defined protocols for the use of LLLT are needed to determine its efficacy in the treatment of TMD.

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Jung, Yunho, Gwang Ho Baik, Weon Jin Ko, Bong Min Ko, Seong Hwan Kim, Jin Seok Jang, Jae-Young Jang, et al. "Diode Laser—Can It Replace the Electrical Current Used in Endoscopic Submucosal Dissection? (with Video)." Clinical Endoscopy 54, no. 4 (July 30, 2021): 555–62. http://dx.doi.org/10.5946/ce.2020.229.

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Background/Aims: A new medical fiber-guided diode laser system (FDLS) is expected to offer high-precision cutting with simultaneous hemostasis. Thus, this study aimed to evaluate the feasibility of using the 1,940-nm FDLS to perform endoscopic submucosal dissection (ESD) in the gastrointestinal tract of an animal model.Methods: In this prospective animal pilot study, gastric and colorectal ESD using the FDLS was performed in ex vivo and in vivo porcine models. The completeness of en bloc resection, the procedure time, intraprocedural bleeding, histological injuries to the muscularis propria (MP) layer, and perforation were assessed.Results: The en bloc resection and perforation rates in the ex vivo study were 100% (10/10) and 10% (1/10), respectively; those in the in vivo study were 100% (4/4) and 0% for gastric ESD and 100% (4/4) and 25% (1/4) for rectal ESD, respectively. Deep MP layer injuries tended to occur more frequently in the rectal than in the gastric ESD cases, and no intraprocedural bleeding occurred in either group.Conclusions: The 1,940-nm FDLS was capable of yielding high en bloc resection rates without intraprocedural bleeding during gastric and colorectal ESD in animal models.

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van der Ploeg-Westerveld, Jos, Jacqueline Wagter, Martin J. C. van Gemert, H. A. M. Neumann, H. Bour, and A. Zwart. "Diode laser hair removal around ileo-colo ostomys is safe, effective and beneficial: A pilot study." Lasers in Surgery and Medicine 39, no. 10 (December 2007): 773–75. http://dx.doi.org/10.1002/lsm.20580.

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Le Bars, Pierre, Gaston Niagha, Ayepa Alain Kouadio, Julien Demoersman, Elisabeth Roy, Valérie Armengol, and Assem Soueidan. "Pilot Study of Laser Doppler Measurement of Flow Variability in the Microcirculation of the Palatal Mucosa." BioMed Research International 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/5749150.

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Background.Histopathological alterations can arise when the denture-supporting mucosa experiences microbial and mechanical stress through the denture base and diagnosis of these diseases usually follows microvascular changes. Microcirculation measurement could allow for detection of such dysfunction and aid in the early diagnosis of palatal mucosa pathologies.Materials and Methods. We tested the sensitivity of laser Doppler for measuring the microcirculation of the palatal mucosa, assessing the median raphe (MR), Schroeder area (SA), and retroincisive papilla (RP). A Doppler PeriFlux 5000 System, containing a laser diode, was used. 54 healthy participants were recruited. We compare the measurements of PU (perfusion unit) using ANOVA test.Results.The numerical values for palatal mucosa blood flow differed significantly among the anatomical areas (p=0.0167). The mean value of Schroeder area was 92.6 (SD: 38.4) and was significantly higher than the retroincisive papilla (51.9) (SD: 20.2) (p<0.05), which in turn was higher than that of median raphe (31.9) (SD: 24.2) (p<0.0001).Conclusion.Schroeder area appeared to have the greatest sensitivity, and vascular flow variability among individuals was also greatest in this region. We suggest that analysis of blood stream modification with laser Doppler of the palatal mucosa can help to detect onset signs of pathological alterations.

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Inoue, Ken, Naohisa Yoshida, Reo Kobayashi, Yuri Tomita, Hikaru Hashimoto, Satoshi Sugino, Ryohei Hirose, et al. "The Efficacy of Tumor Characterization for Colorectal Lesions with Blue Light Imaging of a Compact Light-Emitting Diode Endoscopic System Compared to a Laser Endoscopic System: A Pilot Study." Gastroenterology Research and Practice 2022 (April 12, 2022): 1–7. http://dx.doi.org/10.1155/2022/9998280.

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Background: A compact and cost-effective light source-processor combined 3-color light-emitting diode (LED) endoscopic system (ELUXEO-Lite: EP-6000, Fujifilm Co., Tokyo) with a magnified colonoscope (EC-6600ZP, Fujifilm Co.) has been released. Aims: In this study, we analyzed the efficacy of this system for colorectal tumor characterization with magnified blue light imaging (BLI-LED) and image’s subjective and objective evaluations, compared to a magnified blue laser imaging (BLI-LASER) using a standard LASER endoscopic system. Methods: We retrospectively reviewed 37 lesions observed with both BLI-LED and BLI-LASER systems from 2019 using the Japanese narrow band imaging classification. Two representative magnified images, one BLI-LED and one BLI-LASER, of the same area of a lesion were evaluated for diagnostic accuracy and visualization quality by three experts and three non-experts. Their color difference values (CDVs) and brightness values (BVs) were also calculated as objective indicators. Results: Among 37 lesions, mean tumor size was 18.9 ± 13.1 mm, and 21 lesions were nonpolypoid. Histopathology revealed 14 sessile serrated lesions, 7 adenomas, 12 high-grade dysplasias and T1a cancers, and 4 T1b cancers. The diagnostic accuracy rates of BLI-LED/BLI-LASER of experts and non-experts were 90.1% and 87.4% ( p = 0.52 ) and 89.2% and 89.2% ( p = 0.99 ). The percentages of instances where BLI-LED images were better, the two imaging types were equivalent, or BLI-LASER images were better were 16%/83%/1% for experts and 19%/58%/23% for non-experts ( p < 0.001 ). CDVs and BVs between BLI-LED and BLI-LASER were not significantly different (CDVs: p = 0.653 , BVs: p = 0.518 ). Conclusions: BLI-LED using the compact system was noninferior to BLI-LASER for colorectal tumor characterization and image quality.

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Lusche, Inés, Cornelius Dirk, Matthias Frentzen, and Jörg Meister. "Cavity Disinfection With a 445 nm Diode Laser Within the Scope of Restorative Therapy – A Pilot Study." Journal of Lasers in Medical Sciences 11, no. 4 (October 3, 2020): 417–26. http://dx.doi.org/10.34172/jlms.2020.66.

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Hashimoto, Ken, Motoichiro Kogure, Timothy L. Irwin, Keiko Tezuka, Toshimitsu Osawa, Kyoichi Kato, and Teruko Ebisawa. "Permanent hair removal with a diode-pumped Nd:YAG laser: a pilot study using the direct insertion method." Journal of the American Academy of Dermatology 49, no. 6 (December 2003): 1071–80. http://dx.doi.org/10.1016/s0190-9622(03)02130-3.

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Kawalec, J. S., C. Reyes, V. K. Penfield, V. J. Hetherington, D. Hays, F. Feliciano, D. Gartz, J. Jones, R. Esposito, and M. S. Cernica. "Evaluation of the Ceralas D15 diode laser as an adjunct tool for wound care: a pilot study." Foot 11, no. 2 (June 2001): 68–73. http://dx.doi.org/10.1054/foot.2001.0669.

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Odor, Alin Alexandru, Edwin Sever Bechir, and Doriana Agop Forna. "Effect of Hydrogen Peroxide Photoactivated Decontamination Using 940 nm Diode Laser in Periodontal Treatment: A Pilot Study." Photobiomodulation, Photomedicine, and Laser Surgery 38, no. 10 (October 1, 2020): 614–24. http://dx.doi.org/10.1089/photob.2019.4718.

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Kim, Nam-Hoon, Chan Il Park, and Jinseong Park. "A pilot investigation on laser annealing for thin-film solar cells: Crystallinity and optical properties of laser-annealed CdTe thin films by using an 808-nm diode laser." Journal of the Korean Physical Society 62, no. 3 (February 2013): 502–7. http://dx.doi.org/10.3938/jkps.62.502.

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Paasch, Uwe, Justinus A. Wagner, and Hartmut W. Paasch. "Novel 755-nm diode laser vs. conventional 755-nm scanned alexandrite laser: Side-by-side comparison pilot study for thorax and axillary hair removal." Journal of Cosmetic and Laser Therapy 17, no. 4 (May 13, 2015): 189–93. http://dx.doi.org/10.3109/14764172.2015.1007062.

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Oh, In Y., Beom J. Kim, Myeung N. Kim, Chan W. Kim, and Sung E. Kim. "Efficacy of Light-Emitting Diode Photomodulation in Reducing Erythema After Fractional Carbon Dioxide Laser Resurfacing: A Pilot Study." Dermatologic Surgery 39, no. 8 (August 2013): 1171–76. http://dx.doi.org/10.1111/dsu.12213.

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Bhatsange, Anuradha, EktaP Meshram, Alka Waghamare, Lalitha Shiggaon, Vijay Mehetre, and Alkesh Shende. "A clinical and histological comparison of mucosal incisions produced by scalpel, electrocautery, and diode laser: A pilot study." Journal of Dental Lasers 10, no. 2 (2016): 37. http://dx.doi.org/10.4103/2321-1385.196962.

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Meyer, Christian, Detlef Bartsch, Nikolas Mirow, and Andreas Kirschbaum. "Video-Assisted Laser Resection of Lung Metastases—Feasibility of a New Surgical Technique." Thoracic and Cardiovascular Surgeon 65, no. 05 (January 22, 2017): 382–86. http://dx.doi.org/10.1055/s-0036-1597990.

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Background Our pilot study describes our initial experience to do a laser resection of lung metastases under video-assisted thoracoscopic control via a minithoracotomy. With this approach, if needed, mediastinal lymphadenectomy is also possible. Methods In this study, 15 patients (11 men and 4 women, mean age: 60 years) with resectable lung metastases of different solid primary tumors (colorectal cancer in seven patients, melanoma in three patients, renal cell carcinoma in two patients, and one each with oropharyngeal cancer, breast cancer, and seminoma) were included. An anterior minithoracotomy incision (approximately 5–7 cm length) was created in the fifth intercostal space and a soft tissue retractor (Alexis Protector; Applied Medical) was positioned. Two additional working ports were inserted. The entire lung was palpated via the minithoracotomy. All detected lung metastases were removed under thoracoscopic control. Nonanatomic resections were performed using a diode-pumped neodymium-doped yttrium aluminium garnet laser (LIMAX120; KLS Martin GmbH & Co KG) with a laser power of 80 W in a noncontact modus. Deeper parenchymal lesions were sutured. Results A total of 29 lung metastases up to 30 mm in size were resected and all metastases diagnosed on preoperative imaging were detected. All diagnosed lung metastases were completely resected (R0). The median operation time was 102 (range: 85–120) minutes. Median blood loss was 47.6 mL and no postoperative complications occurred. Neither local recurrences nor new lung metastases were observed within 6 months after the procedures. Conclusion Video-assisted laser resection of lung metastases is safe, effective, and fulfills the requirements of modern lung metastases surgery.

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Wegner, Celine, Paul Schlett, Ulrich G. Hofmann, Julian Höth, Thomas Klotzbücher, Thomas Buckert, and Thilo B. Krüger. "Neurophotonic Scanning System – Towards Automatic Infrared Neurostimulation." Current Directions in Biomedical Engineering 6, no. 3 (September 1, 2020): 272–75. http://dx.doi.org/10.1515/cdbme-2020-3069.

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AbstractIntraoperative neuromonitoring is without doubt important for all surgical interventions, where nerve structures are at risk. Mapping techniques for the identification of motor nerves and cortex are available. They rely on manual identification using an electrical stimulation probe. A landmark-based visualization of the results is currently not possible. To overcome these limitations, we are developing a system for automatic stimulation and display of functional tissue. Infrared neurostimulation (INS) was proposed to be a feasible alternative to electrical stimulation of nerves. It provides contactless and artifact-free activation of nerves. For our preclinical experiments we used an infrared diode laser system with a wavelength of 1470 nm. For automatic screening, we developed a scanning system and suitable scan-algorithms in order to provide optimal scanning parameters. Recording of compound muscle action potentials (CMAP) was performed with a differential amplifier and appropriate neurophysiologic software. Subunits of the system were combined via multiple interfaces. A control-software merges all relevant functions of the individual parts and parallel use. Marking of tissue was realized with a red pilot laser deflected by the same scanning system. With this work we could show, that a system for automatic laser deflection with parallel neurophysiologic recording and subsequent highlighting of irradiated tissue is possible. This system can serve as a tool for further systematic investigations in the field of INS.

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Pannier, Rabe, and Maurins. "1470 nm diode laser for endovenous ablation (EVLA) of incompetent saphenous veins - a prospective randomized pilot study comparing warm and cold tumescence anaesthesia." Vasa 39, no. 3 (August 1, 2010): 249–55. http://dx.doi.org/10.1024/0301-1526/a000037.

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Background: Major side effects after endovenous laser ablation (EVLA) are pain and bruising. Low temperature of the tumescence fluid might cause additional venous constriction and a cooling effect around the vein. The aim of this study was to show outcome and side effects after EVLA of incompetent great saphenous veins (GSV) with a 1470 nm Diode laser (Ceralas E, biolitec) using cold or warm tumescence fluid for anaesthesia. Patients and methods: Between August and November 2007, 85 consecutive patients (85 legs) with an incompetent GSV were treated by EVLA. The patients were randomized in two groups. In 42 patients (Group A) a warm (37 °C) and in 43 patients (Group B) a cold (5 °C) tumescence fluid (TF) was used for local anaesthesia in the track of GSV. All patients were re-examined after 1, 10 and 30 days clinically and by duplex for complications and occlusion in the treated vein segment. Patient’s satisfaction was assessed on a 0 to 4 points scale. Results: In each group one patient was lost to follow-up. There was no significant difference concerning gender, age, C of CEAP, BMI or diameter of the treated vein. In Group A a mean of 462 ml TF and in Group B a mean of 428 ml TF were used. In Group A the mean LEED (average linear endovenous energy density) was 114 J / cm and in Group B 115 J / cm. In both groups occlusion of the treated veins was achieved for all patients. The diameter of the GSV at 3 cm below the sapheno-femoral junction shrunk from 1.0 to 0.7 cm in both groups. The modified CEAP clinical score improved in Group A from 2.9 to 0.7 (mean value) and in Group B from 3.0 to 1.1. The mean pain score on a scale from 0 to 4 during day 2 to day 10 was 1.2 in Group A and 1.0 in Group B. At this time patients in Group A took a mean of 3.4 and in Group B 1.7 analgetic tablets. Ecchymoses were rare in both groups (4 in Group A, 7 in Group B). Conclusions: In this prospective randomized comparative study the temperature of the tumescence fluid did not influence the occlusion rate when a high LEED was used. In both groups pain and ecchymoses are less frequent in this study with a 1470 nm diode laser than reported in studies with 810-980 nm systems. Cold tumescence fluid reduced pain slightly and reduced the intake of analgetics significantly.

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Morsi, Asmaa, Darya Haidary, René Franzen, and Norbert Gutknecht. "Intra-pulpal temperature evaluation during diode laser (445 nm) irradiation for treatment of dentine hypersensitivity: in vitro a pilot study." Lasers in Dental Science 4, no. 3 (August 8, 2020): 139–44. http://dx.doi.org/10.1007/s41547-020-00085-9.

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Choy, Bonnie Nga Kwan, Jimmy Shiu Ming Lai, Jane Chun Chun Yeung, and Jonathan Cheuk Hung Chan. "Randomized comparative trial of diode laser transscleral cyclophotocoagulation versus Ahmed glaucoma valve for neovascular glaucoma in Chinese – a pilot study." Clinical Ophthalmology Volume 12 (December 2018): 2545–52. http://dx.doi.org/10.2147/opth.s188999.

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Obana, A. "A Retrospective Pilot Study of Indocyanine Green Enhanced Diode Laser Photocoagulation for Subfoveal Choroidal Neovascularization Associated with Age-Related Macular Degeneration." Japanese Journal of Ophthalmology 44, no. 6 (December 2000): 668–76. http://dx.doi.org/10.1016/s0021-5155(00)00274-4.

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46

Karkos, P. D., M. Stavrakas, and K. Markou. "Early glottic cancer and difficult laryngoscopy: flexible endoscopic diode laryngeal laser-assisted surgery - a pilot study of an oncologically safe tool." Clinical Otolaryngology 41, no. 6 (November 14, 2016): 830. http://dx.doi.org/10.1111/coa.12770.

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Park, Jung Ju, and Kyung Lhi Kang. "Effect of 980-nm GaAlAs diode laser irradiation on healing of extraction sockets in streptozotocin-induced diabetic rats: a pilot study." Lasers in Medical Science 27, no. 1 (July 6, 2011): 223–30. http://dx.doi.org/10.1007/s10103-011-0944-8.

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48

Ciurescu, C., L. Vanweersch, R. Franzen, and N. Gutknecht. "The antibacterial effect of the combined Er,Cr:YSGG and 940 nm diode laser therapy in treatment of periodontitis: a pilot study." Lasers in Dental Science 2, no. 1 (February 6, 2018): 43–51. http://dx.doi.org/10.1007/s41547-017-0018-8.

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van Kollenburg, Rob A. A., Luigi A. M. J. G. van Riel, Paul R. Bloemen, Jorg R. Oddens, Theo M. de Reijke, Harrie P. Beerlage, and Daniel Martijn de Bruin. "Transperineal Laser Ablation Treatment for Lower Urinary Tract Symptoms Due to Benign Prostatic Obstruction: Protocol for a Prospective In Vivo Pilot Study." JMIR Research Protocols 9, no. 1 (January 21, 2020): e15687. http://dx.doi.org/10.2196/15687.

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Background Standard surgical treatments for lower urinary tract symptoms (LUTS) due to benign prostatic obstruction (BPO) use a transurethral approach. Drawbacks are the need for general or spinal anesthesia and complications such as hematuria, strictures, and cloth retention. Therefore, a minimal invasive technique under local anesthesia is desired to improve patient safety. Recently, SoracteLite transperineal laser ablation (TPLA) has been introduced as a novel minimal invasive treatment for BPO. The system used is unique because 4 laser sources are independently available. This 1064-nm diode laser induces coagulative necrosis. Moreover, TPLA is unique because it has a transperineal approach and can be performed under local anesthesia in an outpatient setting. Objective The primary objective of this study is to determine the safety and feasibility of TPLA treatment for men, who are fit for standard surgery, with LUTS due to BPO. The secondary objectives are to determine functional outcomes by flowmetry and patient-reported outcome measures (PROMs), side effects, and tissue changes observed on imaging. Methods This study is a prospective, single center, interventional pilot study IDEAL framework stage 2a and will include 20 patients. Eligible patients are men ≥40 years of age, with a prostate volume of 30 to 120 cc, have urodynamically proven bladder outlet obstruction, and have a peak urinary flow of 5 to 15 mL per second. All patients will undergo TPLA of their prostate under local anesthesia by using the EchoLaser system. Depending on the prostate volume, 2 to 4 laser fibers will be placed bilaterally into the prostate. Patient follow-up consists of uroflowmetry, PROMs, and imaging by using contrast-enhanced ultrasound. Total follow-up is 12 months following treatment. Results Presently, recruitment of patients is ongoing. Publication of first results is expected by early 2020. Conclusions TPLA offers the potential to be a novel minimal invasive technique for treatment of LUTS due to BPO in men fit for standard desobstruction. This study will evaluate the safety and feasibility of TPLA and report on functional outcomes and tissue changes observed on imaging following TPLA treatment. International Registered Report Identifier (IRRID) DERR1-10.2196/15687

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Ravi, Monica, HEsther Nalini, ArunKumar Prasad, and RRenuka Devi. "The effect of biostimulation with 980-nm diode laser on postoperative pain and tissue response after surgical periodontal therapy: A pilot study." Journal of Indian Academy of Dental Specialist Researchers 3, no. 2 (2016): 47. http://dx.doi.org/10.4103/jiadsr.jiadsr_9_17.

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