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https://www.readbyqxmd.com/read/28318157/-effects-of-nd-yag-laser-irradiation-on-the-root-surfaces-and-adhesion-of-streptococcus-mutans
#1
Li Yuanhong, Li Zhongcheng, Luo Mengqi, Shen Daonan, Zhang Shu, Meng Shu
OBJECTIVE: This study aimed to evaluate the effects of treatment with different powers of Nd: YAG laser irradiation on root surfaces and Streptococcus mutans (S. mutans) adhesion. METHODS: Extracted teeth because of severe periodontal disease were divided into the following four groups: control group, laser group 1, laser group 2, and laser group 3. After scaling and root planning, laser group 1, laser group 2, and laser group 3 were separately treated with Nd: YAG laser irradiation (4/6/8 W, 60 s); however, the control group did not receive the treatment...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28301014/evaluation-of-surface-roughness-and-bacterial-adhesion-on-tooth-enamel-irradiated-with-high-intensity-lasers
#2
Ruchele D Nogueira, Camilla B Silva, Cesar P Lepri, Regina Guenka Palma-Dibb, Vinicius R Geraldo-Martins
The aim was to evaluate the surface roughness and bacterial adhesion on enamel irradiated with high intensity lasers, associated or not to a fluoride varnish. Eighty fragments of bovine enamel were equally divided in 8 groups (n=10). Group 1 was not treated and Group 2 received only a 5% fluoride varnish application. The other groups were irradiated with an Er:Cr:YSGG (8.92 J/cm2), an Nd:YAG (84.9 J/cm2) and a diode laser (199.04 J/cm2), associated or not to a 5% fluoride varnish. The surface roughness was measured before and after treatments...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28299490/molecular-effects-of-fractional-ablative-erbium-yag-laser-treatment-with-multiple-stacked-pulses-on-standardized-human-three-dimensional-organotypic-skin-models
#3
Laurenz Schmitt, P M Amann, Y Marquardt, R Heise, K Czaja, P A Gerber, T Steiner, F Hölzle, Jens Malte Baron
The molecular changes in gene expression following ablative laser treatment of skin lesions, such as atrophic scars and UV-damaged skin, are not completely understood. A standardized in vitro model of human skin, to study the effects of laser treatment on human skin, has been recently developed. Therefore, the aim of the investigation was to examine morphological and molecular changes caused by fractional ablative erbium:YAG laser treatment on an in vitro full-thickness 3D standardized organotypic model of human skin...
March 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28299489/a-split-face-comparison-of-q-switched-nd-yag-1064-nm-laser-for-facial-rejuvenation-in-nevus-of-ota-patients
#4
Cao Yongqian, Lin Li, Bi Jianhai, Huo Ran, Guo Li, Wei Hao, Wang Xining, Xie Shigang, Wang Yibing
We aimed to investigate the efficacy and safety of using the 1064-nm Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) laser (QSNYL) for skin rejuvenation in patients with Nevus of Ota. A retrospective, randomized, split-faced, clinical study was conducted. Twenty-nine patients with unilateral moderate to severe Nevus of Ota were enrolled. The participants completed 3-13 sessions of QSNYL treatments 3-6 months apart. Two independent physicians compared the treated and untreated sides of the face to evaluate the clearance of Nevus of Ota, the wrinkle severity rating scale (WSRS), the global aesthetic improvement scale (GAIS), and adverse event reporting...
March 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28299016/circumscribed-ciliochoroidal-effusion-presenting-as-an-acute-angle-closure-attack
#5
Roslyn Kathryn Manrique Lipa, María Eugenia González Sánchez, Carlos Antonio Hijar Ordovas, Abel Rojo Aragües, Carmen Garcia Borque
PURPOSE: To report a case of choroidal effusion probably caused by angiotensin receptor II blocker. CASE REPORT: A 52-year-old man with aplastic anemia and high blood pressure who developed unilateral acute angle closure glaucoma after receiving oral cyclosporine and angiotensin II receptor blocker (losartan). Ophthalmic examination revealed visual acuity of 20/30 in the left eye, mild mydriasis, iris bombe, no anterior chamber reaction, mild conjunctival hyperemia, and the intraocular pressure of 30 mmHg...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28294697/efficacy-of-low-level-laser-therapy-in-subjective-tinnitus-patients-with-temporomandibular-disorders
#6
Nermin Demirkol, Aslihan Usumez, Mehmet Demirkol, Fatih Sari, Cihan Akcaboy
OBJECTIVE AND BACKGROUND: Tinnitus is an apparent sound, perceived in the ear with no stimulus. It has been described as a sound originating from the brain. It affects 17% of the general population. Etiological factors for tinnitus include temporomandibular joint disorders (TMJ, TMD) and Costen's syndrome. The aim of treatment is to eliminate the tinnitus or at least decrease its apparent volume. MATERIALS AND METHODS: In total, 46 patients referred to our department with bilateral subjective tinnitus with TMDs were selected for this study...
March 14, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28293873/the-association-between-nd-yag-laser-and-desensitizing-dentifrices-for-the-treatment-of-dentin-hypersensitivity
#7
Sandra Ribeiro Cunha, Stephanie Assimakopoulos Garófalo, Taís Scaramucci, Denise Maria Zezell, Ana Cecilia Corrêa Aranha
This study aims to evaluate the association between Nd:YAG laser (with and without a photoabsorber) and two desensitizing dentifrices containing 15% NovaMin or 8% arginine, as potential treatments for dentin hypersensitivity (DH). DH was simulated by EDTA application for 2 min. Specimens were then analyzed with an environmental scanning electron microscope (ESEM) to ensure open dentin tubules (ODT), counted by using ImageJ software. Specimens were randomized into eight groups (n = 10): Laser (L), Laser+Photoabsorber (LP), Arginine (A), Arginine+Laser (AL), Arginine+Laser+Photoabsorber (ALP), NovaMin (N), NovaMin+Laser (NL), and NovaMin+Laser+Photoabsorber (NLP)...
March 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28293872/effect-of-high-laser-output-on-the-central-bronchi-and-pulmonary-artery
#8
A Kirschbaum, P Rexin, D K Bartsch, K Quint
A diode-pump Nd:YAG high-power laser (wavelength 1320 nm, power 100 W) is routinely used to surgically remove lung metastases. Even pulmonary lesions in central locations are resectable via this method, yet it also carries a potential risk of damaging the larger bronchi and vessels in the vicinity. Studies investigating the safety of using high-power lasers are lacking. We therefore aimed to examine the direct effects of a 100-watt laser on the bronchi and pulmonary artery at a standard working velocity. From freshly slaughtered pigs, we isolated cylindrical specimens of the trachea, the main and lobar bronchi, and the central pulmonary artery from the both lungs...
March 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28292198/prospective-analysis-of-a-complete-retrograde-ureteroscopic-technique-with-holmium-laser-stent-cutting-for-management-of-encrusted-ureteral-stents
#9
Alexandre Thomas, Jonathan Cloutier, Luca Villa, Julien Letendre, Achilles Ploumidis, Olivier Traxer
PURPOSE: To propose and evaluate a new endoscopic technique using only a retrograde ureteroscopic approach for the removal of heavily encrusted ureteral stents. METHODS: Data from 51 consecutive patients with encrusted and retained ureteral stents were prospectively collected. Description of the successive steps of surgery is detailed. The Holmium-YAG laser properties offer the opportunity for fragmentation of stent-attached encrustation and the ability to cut the stent itself...
March 14, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28288449/laser-surgeon-client-education-and-satisfaction-with-tattoo-removal
#10
Katrina Hutton Carlsen, Jørgen Esmann, Jørgen Serup
Studies of satisfaction with tattoo removal outcomes by laser, rated by clients themselves, including qualitative aspects, are sparse. We studied long-term results and client satisfaction with tattoo removal by Q-switched YAG laser. Client satisfaction is influenced by numerous factors: pretreatment expectations, objective observations, pretreatment information, laser treatment procedures, and outcome, including subjective experiences such as pain. Client-surgeon interaction during the full laser treatment course is a major determinant of client satisfaction...
2017: Current Problems in Dermatology
https://www.readbyqxmd.com/read/28286654/it-s-better-to-be-lucky%C3%A2-%C3%A2-%C3%A2-successful-management-of-an-acute-endobronchial-tumour-embolism-in-the-icu-a-case-report-and-review-of-the-literature
#11
Christopher J Walsh, Ron Olivenstein, Eric Forget, Anne V Gonzalez
Endobronchial tumour embolism is a rare cause of acute central airway obstruction. It is primarily reported during pneumonectomy, and the outcome is frequently fatal. Successful management requires the urgent removal of tumour with rigid or flexible bronchoscopy. We present the case of a 62-year-old woman with poorly differentiated non-small cell lung cancer (NSCLC), referred to our institution for Nd:YAG laser photoresection of endobronchial tumour completely obstructing the right mainstem bronchus (RMSB)...
May 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28282558/efficacy-of-scaling-and-root-planning-with-and-without-adjunct-nd-yag-laser-therapy-on-clinical-periodontal-parameters-and-gingival-crevicular-fluid-interleukin-1-beta-and-tumor-necrosis-factor-alpha-levels-among-patients-with-periodontal-disease-a-prospective
#12
Tariq Abduljabbar, Fahim Vohra, Sergio Varela Kellesarian, Fawad Javed
BACKGROUND AND AIM: Limited evidence exists regarding the role of scaling and root planning (SRP) with adjunct neodymium yttrium aluminum garnet (Nd:YAG) laser therapy in reducing periodontal parameters (plaque index [PI], bleeding on probing [BOP] and probing pocket depth [PPD]) and levels of proinflammatory cytokines in the gingival crevicular fluid (GCF) among patients with periodontal disease (PD). The aim was to assess the effect of SRP with and without adjunct Nd:YAG laser therapy on clinical periodontal parameters and GCF interleukin 1-beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels among patients with PD...
March 3, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28282068/surgical-treatment-and-optical-coherence-tomographic-evaluation-for-accidental-laser-induced-full-thickness-macular-holes
#13
Y Qi, Y Wang, Q You, F Tsai, W Liu
PurposeTo report OCT appearance and surgical outcomes of full-thickness macular holes (MHs) accidentally caused by laser devices.Patients and methodsThis retrospective case series included 11 eyes of 11 patients with laser-induced MHs treated by pars plana vitrectomy, internal limiting membrane (ILM) peeling, and gas or silicone oil tamponade. Evaluations included a full ophthalmic examination, macular spectral-domain optical coherence tomography (SD-OCT), and fundus photography. Main outcome measures is MH closure and final visual acuity; the secondary outcome was the changes of retinal pigment epithelium and photoreceptor layer evaluated by sequential post-operative SD-OCT images...
March 10, 2017: Eye
https://www.readbyqxmd.com/read/28280508/is-it-necessary-to-prepare-the-enamel-before-dental-bleaching
#14
Andréa Dias Neves Lago, Patrícia Moreira de Freitas, Erika Michele Dos Santos Araújo, Adriana Bona Matos, Narciso Garone-Netto
The aim of this in vitro study was to assess the influence of distinct surface treatments on the microhardness and color of enamel that will be bleached. Surface treatments are tested, accordingly: G1, no treatment; G2, 2% sodium fluoride; G3, casein phosphopeptide paste; G4, 2% fluoride+Nd:YAG laser. Forty blocks from bovine teeth composed the sample that were tested in Knoop microhardness (n = 10) and in color change (n = 10). After 24 h, bleaching with 35% hydrogen peroxide was performed for 45 min. Microhardness and color changes (using parameters ΔE, ΔL, Δa, and Δb) were assessed before and after bleaching...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28275785/-histological-evaluations-on-periapical-tissues-after-irradiation-by-erbium-doped-yttrium-aluminum-garnet-laser-in-labradors-dogs
#15
Hao-Ming Wang, Meng-Qi Zhou, Jin Hong
PURPOSE: To investigate the thermal effects on periapical tissues of Labrador dogs after intra-canal irradiation by erbium-doped yttrium aluminum garnet (Er:YAG) laser at different powers based on the antibacterial experiment of Enterococcus faecalis and Escherichia coli in root canals with an isthmus, to assess the histological changes, and to prove the safety for clinical applications. METHODS: Two hundred root canals of 10 healthy adult Labradors dogs were selected and divided into 5 groups...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28275279/influence-of-laser-activated-irrigation-with-two-erbium-lasers-on-bond-strength-of-inidividually-formed-fiber-reinforced-composite-posts-to-root-canal-dentin
#16
Ivana Parčina, Amižić, Ivana Miletić, Andrei C Ionescu, Eugenio Brambilla, Dragana Gabrić, Anja Baraba
OBJECTIVE: The aim of this in vitro study was to investigate the effect of laser activated irrigation (LAI) using two erbium lasers on bond strength of individually formed fiber-reinforced composite (FRC) posts to root canal dentin. MATERIALS AND METHODS: Twenty-seven single-rooted human teeth were endodontically treated and after post space preparation divided into three groups (n=9 per group), according to the pre-treatment of post space preparation: 1) Conventional syringe irrigation (CSI) and saline; 2) Er...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28272229/occult-lens-subluxation-related-to-laser-peripheral-iridotomy-a-case-report-and-literature-review
#17
Rongrong Hu, Xiaoyu Wang, Yang Wang, Yang Sun
RATIONALE: Laser peripheral iridotomy (LPI) is commonly performed as a primary treatment for acute primary angle closure glaucoma after administration of anti-glaucoma medications or for prevention of this condition. Minor complications may occur following LPI and most of them do not have deleterious consequences. We report a rare case of lens subluxation that has a possible relationship with LPI treatment. PATIENT CONCERNS: A 54-year-old female patient was initially referred for surgical treatment of medication-uncontrollable angle closure glaucoma in her left eye...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28272082/er-yag-laser-ablation-an-adjuvant-treatment-for-medically-resistant-pyoderma-gangrenosum
#18
Ercan Çalşkan
No abstract text is available yet for this article.
March 7, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28271946/the-effect-of-long-pulsed-nd-yag-laser-for-the-treatment-of-onychomycosis
#19
Gökhan Okan, Nagehan Tarikci, Gonca Gokdemir
BACKGROUND: Topical onychomycosis therapies are usually inadequate, and patient compliance to systemic therapies is poor. Recently, interest in laser therapy for the treatment of onychomycosis has increased. We sought to investigate the efficacy of long-pulsed Nd:YAG laser therapy for onychomycosis. METHODS: Thirty patients with mycologically confirmed onychomycosis received long-pulsed 1064-nm Nd:YAG laser therapy, moving the beam in a spiral pattern over the whole nail plate two times, with a 1-minute pause between passes...
January 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28271594/sealing-ability-and-adaptation-of-root-end-filling-materials-in-cavities-prepared-with-different-techniques
#20
Selen Küçükkaya Eren, Mehmet Ömer Görduysus, Cem Şahin
The aim of this study was to evaluate the sealing ability and marginal adaptation of calcium silicate-based cements (CSCs) in root-end cavities prepared by ultrasonic and laser tips. A total of 72 extracted human maxillary incisor teeth were randomly divided as 60 teeth in experimental groups and 6 teeth each for positive and negative control groups. Specimens in experimental groups were obturated, their root-end resections were performed and randomly divided into six groups (n = 10) as follows: G1: Ultrasonic retrotip + MTA, G2: Ultrasonic retrotip + Calcium Enriched Mixture (CEM), G3: Ultrasonic retrotip + Biodentine, G4: Er:YAG laser tip + MTA, G5: Er:YAG laser tip + CEM, G6: Er:YAG laser tip + Biodentine...
March 8, 2017: Microscopy Research and Technique
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