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erbium yag

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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
#1
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/28275785/-histological-evaluations-on-periapical-tissues-after-irradiation-by-erbium-doped-yttrium-aluminum-garnet-laser-in-labradors-dogs
#2
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
#3
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/28239750/light-and-laser-treatment-modalities-for-disseminated-superficial-actinic-porokeratosis-a-systematic-review
#4
Gregory A Aird, Jenna L Sitenga, Austin Huy Nguyen, Adam Vaudreuil, Christopher J Huerter
Treatment of disseminated superficial actinic porokeratosis (DSAP) is poorly standardized. The present review seeks to comprehensively discuss the potential for laser and light modalities in the treatment of DSAP. A systematic review of light and laser treatment modalities was conducted to include 26 cases of patients with DSAP. Systematic review resulted in 14 articles to be included. Photodynamic therapy (PDT) overall was the least successful treatment modality, with clinical improvement seen in a minority of patients (MAL-PDT: N = 9 patients, 33...
February 27, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28223745/intense-pulsed-light-alone-and-in-combination-with-erbium-yttrium-aluminum-garnet-laser-on-small-to-medium-sized-congenital-melanocytic-nevi-single-center-experience-based-on-retrospective-chart-review
#5
Mi So Lee, Hee Jin Jun, Sang Hyun Cho, Jeong Deuk Lee, Hei Sung Kim
BACKGROUND: Treatment of congenital melanocytic nevi (CMN) with intense pulsed light (IPL) has recently produced promising results. OBJECTIVE: To evaluate the clinical and histological outcomes of small-to-medium sized CMN treated with IPL alone and in combination with erbium: yttrium-aluminum-garnet (Er: YAG) laser. METHODS: We performed a retrospective chart review of 26 small-to-medium sized CMN treated as described above. The reduction in visible pigmentation, signs of recurrence and any adverse skin changes were evaluated by two independent clinicians...
February 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28210823/non-ablative-erbium-yag-laser-for-the-treatment-of-type-iii-stress-urinary-incontinence-intrinsic-sphincter-deficiency
#6
Adrian Gaspar, Hugo Brandi
The objective of this pilot study was to determine the safety and efficacy of a new non-ablative erbium YAG laser procedure for the treatment of type III stress urinary incontinence (intrinsic sphincter deficiency) in women. Twenty-two patients with a Valsalva leak point pressure less than 60 cm H2O were recruited and treated with a non-ablative erbium laser delivering low fluence pulses inside the whole length of the urethra through a specially designed cannula. Treatment consisted of two treatment sessions with a 3-week interval in-between...
April 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28166434/a-systematic-review-of-comparative-studies-of-co2anderbium-yag-lasers-in-resurfacing-facial-rhytides-wrinkles
#7
Kee-Hsin Chen, Ka-Wai Tam, I-Fan Chen, Shihping Kevin Huang, Pei-Chuan Tzeng, Hsian-Jenn Wang, Chiehfeng Cliff Chen
BACKGROUND: Laser resurfacing is used to minimize wrinkles, solar scars, and sequelae of acne. OBJECTIVE: Purpose of the systemic review was to compare resurfacing outcomes of CO2 laser and erbium: yttrium-aluminum-garnet (erb:YAG) laser therapies. METHODS AND MATERIALS: Medline, Cochrane, EMBASE, Google Scholar databases were searched until April 9, 2015 using the following terms: laser, carbon dioxide/CO2, facial wrinkles, rhytides, erbium-doped yttrium aluminum garnet/erbium:YAG/Er:YAG...
February 6, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28124198/laser-assisted-topical-corticosteroid-delivery-for-the-treatment-of-keloids
#8
Ji Hye Park, Ji Young Chun, Jong Hee Lee
Laser-assisted drug delivery has generated intense interest. The objectives of this study are to evaluate the clinical benefit of laser-assisted corticosteroid delivery and to compare this technique to corticosteroid intralesional injection, a standard treatment for keloids. Patients with keloids on the left shoulder after BCG vaccination were enrolled in this study. The entire lesion was first treated with an ablative fractional erbium-YAG laser. After this treatment, the lesion was divided into two halves...
April 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28121513/evaluation-of-mineral-content-and-photon-interaction-parameters-of-dental-enamel-after-phosphoric-acid-and-er-yag-laser-treatment
#9
Huseyin Simsek, Taskın Gurbuz, Suleyman Kutalmış Buyuk, Yuksel Ozdemir
OBJECTIVE: The purpose of this study was to evaluate the effects of laser and acid etching on the mineral content and photon interaction parameters of dental enamel in human teeth. BACKGROUND DATA: The composition of dental enamel may vary, especially at the surface, depending on the reactions that occur during dental treatment. MATERIALS AND METHODS: Forty maxillary premolars were divided randomly into 2 groups of 20 teeth. In the first group, half of teeth crowns were etched by using 37% phosphoric acid; in the second group, half of teeth crowns were etched by using an erbium:yttrium-aluminum-garnet (Er:YAG) laser...
January 24, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28116422/-evaluation-of-root-canal-isthmus-debridement-efficacy-of-er-yag-laser-in-combination-with-sodium-hypochlorite
#10
Meng-Qi Zhou, Hao-Ming Wang, Jia-Qi Xiao, Jin Hong
PURPOSE: To histologically evaluate the efficacy of sodium hypochlorite (NaClO) in combination with Er:YAG (erbium-doped yttrium aluminium garnet) laser in dissolving necrotic tissue and cleaning root canals as well as canal isthmuses. METHODS: After scanned by cone-beam CT (CBCT), 50 well-prepared premolars with root canal isthmuses were selected and randomly assigned into 5 groups. They were subsequently subjected to different regimens as followed: group A-irrigated with 1% NaClO for 1 minute, group B- irradiated by Er:YAG laser at 0...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28095561/self-resolving-eruptive-keratoacanthomas-after-full-field-erbium-laser-resurfacing
#11
Eileen L Axibal, Julia D Kreger, Michael E Contreras, Joel L Cohen
Keratoacanthoma (KA) is a subtype of squamous cell carcinoma whose development has been linked to excessive sun exposure, immunosuppression, and trauma. Given the rapidly expanding therapeutic armamentarium for anti-aging modalities in dermatology, reports of KA secondary to invasive cosmetic procedures are on the rise. We present a case of eruptive KAs after full- eld ablative Erbium:YAG 2940 nm laser resurfacing of the face that resolved with minimal intervention. This case demonstrates the potential for a rare yet signi cant laser complication that may warrant discussion during the consenting process...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28061356/clinical-differences-in-autofluorescence-between-viable-and-nonvital-bone-a-case-report-with-histopathologic-evaluation-performed-on-medication-related-osteonecrosis-of-the-jaws
#12
Ilaria Giovannacci, Marco Meleti, Domenico Corradi, Paolo Vescovi
Medication-related osteonecrosis of the jaws (MRONJ) is an adverse side effect of several drug therapies, including bisphosphonates (BPs). Osteonecrosis of the jaw specifically related to BP therapy is usually referred to using the acronym BRONJ. However, no consensus has yet been reached regarding the most appropriate management of BRONJ. The greatest success rates have been recorded with surgical removal of necrotic bone. In particular, erbium:yttrium-aluminum-garnet (Er:YAG) laser-assisted surgery has shown significantly better results than conventional surgical approaches...
December 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28009690/fractional-erbium-doped-yttrium-aluminum-garnet-laser-versus-microneedling-in-treatment-of-atrophic-acne-scars-a-randomized-split-face-clinical-study
#13
RANDOMIZED CONTROLLED TRIAL
Mai Abdel Raouf Osman, Hisham Ali Shokeir, Marwa M Fawzy
BACKGROUND: Ablative fractional erbium-doped yttrium aluminum garnet (Er:YAG) laser and microneedling have been popularized in recent years and their effectiveness and side effects individually reported. No previous study, however, has directly compared the efficacy and safety between the 2 different treatments. OBJECTIVE: To compare the efficacy and safety of the ablative fractional Er:YAG laser and microneedling for the treatment of atrophic acne scars. MATERIALS AND METHODS: Thirty patients with atrophic acne scars were randomly treated in a split-face manner with a fractional Er:YAG laser on one side and microneedling on the other side...
January 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27998364/bone-healing-following-different-types-of-osteotomy-scanning-electron-microscopy-sem-and-three-dimensional-sem-analyses
#14
Marko Blaskovic, Dragana Gabrić, Nichola J Coleman, Ian J Slipper, Mitko Mladenov, Elizabeta Gjorgievska
The aim of the present study was to compare dynamics of the bone healing process after different types of osteotomies. In total, 24 Wistar rats were subjected to different types of osteotomy performed with standard steel bur, piezosurgery, contact, and non-contact Erbium:yttrium-aluminum-garnet (Er:YAG) laser ablation. The animals were randomly divided into four groups, to be euthanized immediately after the procedure, or at 1, 2, or 3 weeks after surgery. The obtained bone samples were analyzed by scanning electron microscopy (SEM)...
December 2016: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/27921170/effect-of-photon-initiated-photoacoustic-streaming-passive-ultrasonic-and-sonic-irrigation-techniques-on-dentinal-tubule-penetration-of-irrigation-solution-a-confocal-microscopic-study
#15
Merve Akcay, Hakan Arslan, Merve Mese, Nazlı Durmus, Ismail Davut Capar
OBJECTIVES: The aim of this in vitro study was to evaluate the efficacy of different irrigation techniques including laser-activated irrigation using an erbium:yttrium-aluminum-garnet (Er:YAG) laser with a novel tip design (photon-induced photoacoustic streaming (PIPS)), Er:YAG laser with Preciso tip, sonic activation, and passive ultrasonic activation on the final irrigation solution penetration into dentinal tubules by using a laser scanning confocal microscope. MATERIAL AND METHODS: In this study, 65 extracted single-rooted human mandibular premolars were instrumented up to size 40 and randomly divided into 5 groups (n = 13) based on the activation technique of the final irrigation solution as follows: conventional irrigation (control group), sonic activation, passive ultrasonic activation, Er:YAG-PIPS tip activation, and Er:YAG-Preciso tip activation...
December 5, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27885520/the-effect-of-pre-operative-topical-anaesthetic-cream-on-the-ablative-width-and-coagulative-depth-of-ablative-fractional-resurfacing-laser
#16
Preawphan Punyaratabandhu, Rungsima Wanitphakdeedecha, Penvadee Pattanaprichakul, Panitta Sitthinamsuwan, Weeranut Phothong, Sasima Eimpunth, Visnu Lohsiriwat, Woraphong Manuskiatti
Topical anaesthetic cream (TAC) is commonly used as a pre-treatment of ablative fractional resurfacing (AFR) laser. Most of anaesthetic cream contains distilled water as major component. Therefore, pre-operative TAC may interfere the photothermal reaction in the skin treated with fractional carbon-dioxide (FCO2) laser and fractional erbium-doped yttrium aluminium garnet (FEr:YAG) laser. The objective of the study was to compare the ablative width (AW) and coagulative depth (CD) of AFR laser with and without pre-treatment with TAC...
February 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/27869377/physical-modalities-for-the-treatment-of-rosacea
#17
Maja A Hofmann, Percy Lehmann
Rosacea is characterised by a wide variety of vascular changes. Apart from telangiectasia and erythema, often so-called flushing occurs. These vascular abnormalities can be targeted with specific light and laser devices. In addition to KTP laser, pulsed dye laser (PDL) and Nd:YAG laser, also intense pulsed light devices (IPLs) are used. The described therapeutic effects include the reduction of vascular abnormalities and even improvement of papulopustular changes. While the KTP laser shows very good results in telangiectasia, the dye laser and IPL devices are used preferably in erythema...
December 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27869376/physikalische-methoden-zur-behandlung-der-rosazea
#18
Maja A Hofmann, Percy Lehmann
Die Rosazea ist durch vielfältige vaskuläre Veränderungen gekennzeichnet. Neben Teleangiektasien und Erythemen treten häufig auch sogenannte "Flushings" auf. Haupteinsatzgebiete von Licht- und Lasersystemen sind diese vaskulären Veränderungen, wie Erytheme und Teleangiektasien. Neben dem KTP-Laser, dem Farbstofflaser (PDL) und dem Nd:YAG-Laser kommen auch Blitzlampen (IPL) zum Einsatz. Neben der Rückbildung der vaskulären Komponente, ist auch eine Verbesserung der papulopustulösen Komponente beschrieben...
December 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27856377/assessment-of-the-efficiency-of-erbium-yag-laser-as-an-assistant-method-to-rapid-maxillary-expansion-an-in-vivo-study
#19
Shadi George Moawad, Joseph Bouserhal, Mohammad Kusai Al-Munajed
INTRODUCTION: Maxillary transverse deficiency (MTD) is one of the most pervasive and common skeletal problems in the craniofacial complex. This study aimed to evaluate the effect of associating the application of Erbium-YAG laser with rapid maxillary expansion (RME) for treating MTD in young adult patients with permanent dentition in regard to skeletal and dental effects. METHODS: Twenty-four subjects, aged from 15.5 to 19 years and needing RME as a therapeutic procedure, were randomly assigned to either the laser group (n=12) or the control group (n=12)...
December 2016: International Orthodontics
https://www.readbyqxmd.com/read/27849400/erbium-yttrium-aluminum-garnet-laser-versus-q-switched-neodymium-yttrium-aluminum-garnet-laser-for-the-treatment-of-xanthelasma-palpebrarum
#20
Ali Balevi, Pelin Ustuner, Mustafa Ozdemir
BACKGROUND: Several lasers have been used for the treatment of xanthelasma palpebrarum (XP), such as Q-switched neodymium:yttrium aluminum garnet (QSNd:YAG) and erbium:yttrium aluminum garnet (Er:YAG) laser. Up to now, a comparative study among these laser options in the treatment of XP has not been reported. OBJECTIVE: The aim of this study was to compare the clinical efficacy and response rates of QSNd:YAG and Er:YAG in the treatment of XP. METHODS: Sixty patients with a total of 102 XP lesions were randomly and equally divided into two groups...
February 2, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
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