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https://www.readbyqxmd.com/read/29340524/efficacy-of-removal-of-cariogenic-bacteria-and-carious-dentin-by-ablation-using-different-modes-of-er-yag-lasers
#1
A Baraba, L Kqiku, D Gabrić, Ž Verzak, K Hanscho, I Miletić
The primary objective of this in vitro study was to evaluate the efficiency of removal of cariogenic bacteria and carious dentin by ablation using two lasers: fluorescence-feedback controlled (FFC) Er:YAG laser and different pulses of Er:YAG laser based on variable square pulse technology (VSPt). The secondary objective was to measure the temperature during laser ablation of carious tissue. Seventy-two extracted human molars were used in this study. Sixty teeth with carious dentin were randomly divided into four experimental groups according to the treatment for caries removal: group 1: 400 µs (FFC group); group 2: super short pulse (SSP group, 50 µs pulse); group 3: medium short pulse (MSP group, 100 µs pulse); group 4: short pulse (SP group, 300 µs pulse) and one positive control group with no treatment...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29336318/nevus-anelasticus-in-a-school-aged-girl-ultrastructural-observation-and-er-yag-laser-treatment
#2
Ge Shi, Ya-Yun Wu, Ying Zhou, Shi-Jie Li, Yi-Ming Fan
No abstract text is available yet for this article.
January 16, 2018: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/29333582/outpatient-erbium-yag-2940%C3%A2-nm-laser-treatment-for-snoring-a-prospective-study-on-40-patients
#3
Isabelle Fini Storchi, Steven Parker, Francesca Bovis, Stefano Benedicenti, Andrea Amaroli
Snoring is a sleep phenomenon due to the partial upper airway obstruction during sleep which causes vibration of the tissues of the rhino-oro-hypopharynx and less frequently the larynx. This study evaluated the use and effectiveness of the erbium:YAG 2940-nm laser as an adjunctive in providing treatment for patients suffering from chronic snoring-related sleep disorders. A prospective study of 40 consecutive patients with snoring and sleep disorders was performed, assessing data before and after three Er:YAG laser treatment sessions...
January 15, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29329120/re-osseointegration-of-dental-implants-after-periimplantitis-treatments-a-systematic-review
#4
Marwa Madi, Moe Htet, Osama Zakaria, Adel Alagl, Shohei Kasugai
PURPOSE: This review considers possible surgical treatment modalities for induced periimplantitis to regain re-osseointegration as reported in the recent literature. MATERIALS AND METHODS: Electronic searches in MEDLINE/PubMed and Google Scholar databases were performed on experimental studies considering induced periimplantitis and attempts to achieve re-osseointegration from 2003 up to December 2016. Conflicts about articles were solved by authors' discussion...
January 11, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29327089/comparative-efficacy-of-er-cr-ysgg-and-er-yag-lasers-for-etching-of-composite-for-orthodontic-bracket-bonding
#5
Amir Hossein Mirhashemi, Nasim Chiniforush, Nastaran Sharifi, Amir Mehdi Hosseini
Several techniques have been proposed to obtain a durable bond, and the efficacy of these techniques is assessed by measuring parameters such as bond strength. Laser has provided a bond strength as high as that of acid etching in vitro and has simpler use with shorter clinical time compared to acid etching. This study aimed to compare the efficacy of Er:YAG and Er,Cr:YSGG lasers for etching and bonding of composite to orthodontic brackets. No previous study has evaluated the effect of these particular types of laser...
January 11, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29327088/amplification-of-pressure-waves-in-laser-assisted-endodontics-with-synchronized-delivery-of-er-yag-laser-pulses
#6
Nejc Lukač, Matija Jezeršek
When attempting to clean surfaces of dental root canals with laser-induced cavitation bubbles, the resulting cavitation oscillations are significantly prolonged due to friction on the cavity walls and other factors. Consequently, the collapses are less intense and the shock waves that are usually emitted following a bubble's collapse are diminished or not present at all. A new technique of synchronized laser-pulse delivery intended to enhance the emission of shock waves from collapsed bubbles in fluid-filled endodontic canals is reported...
January 11, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29322655/efficiency-of-er-yag-laser-in-debonding-of-porcelain-laminate-veneers-by-contact-and-non-contact-laser-application-modes-in-vitro-study
#7
Mohand ALBalkhi, Eyad Swed, Omar Hamadah
OBJECTIVE: To determine the efficiency of debonding porcelain laminate veneers (PLV) by using several laser parameters and two different application modes of Er:YAG laser [contact (CM) and non-contact (NCM)], by verification of the consumed PLV debonding time and the changes in dental pulp temperature. MATERIALS AND METHODS: Forty extracted non-carious human maxillary premolars were prepared for receiving PLV. Sixteen of them were divided into two groups, each of them comprised eight samples based on the application mode; group A with NCM, and group B with CM...
January 11, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29306778/influence-on-proliferation-and-adhesion-of-human-gingival-fibroblasts-from-different-titanium-surface-decontamination-treatments-an-in-vitro-study
#8
Cao Jie, Tong Wang, Pu Yinfei, Tang Zhihui, Meng Huanxin
OBJECTIVES: To investigate the effects of different decontamination treatments on microstructure of titanium (Ti) surface as well as proliferation and adhesion of human gingival fibroblasts (HGFs). MATERIAL AND METHODS: Ti discs with machined (M) and sand blasted, acid etched (SAE) surfaces were treated with five different decontamination treatments: (1) stainless steel curette (SSC), ultrasonic system with (2) straight carbon fiber tip (UCF) or (3) metal tip (UM), (4) rotating Ti brush (RTB), and (5) Er:YAG laser (30 mJ/pulse at 30 Hz)...
December 24, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29305571/laser-application-to-the-root-surface-increases-the-bonding-strength-of-surface-treated-prefabricated-glass-fiber-posts-in-teeth-with-excessive-substance-loss
#9
Zuhal Gorus, Ayse Mese, Berivan Dundar Yilmaz, Ozkan Adiguzel
BACKGROUND This study examined the effect of roughening of the root surface using an erbium-doped yttrium aluminum garnet (Er: YAG) laser on the binding strength of teeth undergoing root canal treatment. MATERIAL AND METHODS Ninety single-rooted teeth were used and assigned randomly to 9 groups (n=10 each). Root canals were prepared using the FlexMaster rotary system. An Er: YAG laser was applied to the root canals in Group 1, with no surface treatment of the glass-fiber post. In Group 2, aluminum oxide particles were applied...
January 6, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29283687/recall-erythema-phenomenon-following-er-yag-laser-treatment-two-case-studies-and-literature-review
#10
Margit L W Juhász, Melissa Kanchanapoomi Levin, Ellen S Marmur
Recall erythema is a phenomenon occurring when an area of epidermis treated with laser is later exposed to a trigger, most often sunlight or hot water, causing erythema in the zone of laser treatment after post-treatment erythema has already resolved. Radiation recall dermatitis is a more specific subtype of recall erythema in which an area treated with radiation is subjected to another exposure causing erythema in the area of previous radiation. Cases of recall dermatitis after laser treatment are extremely rare and have only been reported with diode neodymium-doped yttrium aluminum garnet lasers...
December 28, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29279728/a-comparison-of-er-yag-laser-with-photon-initiated-photoacoustic-streaming-nd-yag-laser-and-conventional-irrigation-on-the-eradication-of-root-dentinal-tubule-infection-by-enterococcus-faecalis-biofilms-a-scanning-electron-microscopy-study
#11
Burcu Ozses Ozkaya, Kamran Gulsahi, Mete Ungor, Julide Sedef Gocmen
This study evaluated the antimicrobial efficacy of Er:YAG laser activation with photon-initiated photoacoustic streaming (PIPS), Nd:YAG laser disinfection, and conventional irrigation on Enterococcus faecalis biofilms using scanning electron microscopy (SEM). Biofilms were grown on 110 root halves and divided into the following: Groups 1 and 2 (saline and 1% NaOCl with apical position of PIPS, resp.), Groups 3 and 4 (saline and 1% NaOCl with coronal position of PIPS, resp.), Groups 5 and 6 (Nd:YAG laser after saline and 1% NaOCl irrigation, resp...
2017: Scanning
https://www.readbyqxmd.com/read/29236177/effect-of-er-yag-laser-enamel-conditioning-and-moisture-on-the-microleakage-of-a-hydrophilic-sealant
#12
Zeynep Aslı Güçlü, Andrew Paul Hurt, Nazmiye Dönmez, Nichola Jayne Coleman
For a given sealant, successful pit and fissure sealing is principally governed by the enamel conditioning technique and the presence of moisture contamination. A new generation of hydrophilic resin sealants is reported to tolerate moisture. This study investigates the impact of Er:YAG laser pre-conditioning and moisture contamination on the microleakage of a recent hydrophilic sealant. Occlusal surfaces of extracted human molars were either acid etched (n = 30), or successively lased and acid etched (n = 30)...
December 13, 2017: Odontology
https://www.readbyqxmd.com/read/29234138/effect-of-high-power-laser-with-and-without-graphite-coating-on-bonding-of-resin-cement-to-lithium-disilicate-ceramic
#13
Fernanda A Feitosa, Rodrigo M de Araújo, Franklin R Tay, Lina Niu, César R Pucci
The present study evaluated the effect of different high-power-laser surface treatments on the bond strength between resin cement and disilicate ceramic. Lithium disilicate ceramic specimens with truncated cones shape were prepared and divided into 5 groups: HF (hydrofluoric acid-etching), Er:YAG laser + HF, Graphite + Er:YAG laser + HF, Nd:YAG laser + HF, and Graphite + Nd:YAG laser + HF. The treated ceramic surfaces were characterized with scanning electron microscopy and surface roughness measurement...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29209868/laser-surface-modification-of-decellularized-extracellular-cartilage-matrix-for-cartilage-tissue-engineering
#14
Eva Goldberg-Bockhorn, Silke Schwarz, Rachana Subedi, Alexander Elsässer, Ricarda Riepl, Paul Walther, Ludwig Körber, Roman Breiter, Karl Stock, Nicole Rotter
The implantation of autologous cartilage as the gold standard operative procedure for the reconstruction of cartilage defects in the head and neck region unfortunately implicates a variety of negative effects at the donor site. Tissue-engineered cartilage appears to be a promising alternative. However, due to the complex requirements, the optimal material is yet to be determined. As demonstrated previously, decellularized porcine cartilage (DECM) might be a good option to engineer vital cartilage. As the dense structure of DECM limits cellular infiltration, we investigated surface modifications of the scaffolds by carbon dioxide (CO2) and Er:YAG laser application to facilitate the migration of chondrocytes inside the scaffold...
December 6, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29192632/effect-of-different-modes-of-erbium-yttrium-aluminum-garnet-laser-on-shear-bond-strength-to-dentin
#15
E Kucukyilmaz, M S Botsali, E Korkut, Y Sener, T Sari
OBJECTIVES: The aim of this study was to evaluate the effect of different surface treatments on the shear bond strength (SBS) of resin composites to dentin using total etch dentin bonding adhesives. MATERIALS AND METHODS: Sixty extracted human molars were flattened to obtain dentin surfaces. The samples were divided into three groups (n = 20): Group I: 37% phosphoric acid + optibond FL + resin composite; Group II: Erbium:yttrium aluminum garnet (Er:YAG) laser (medium short pulse [MSP] mode, 120 mJ/10 Hz) + optibond FL + resin composite; Group III: Er:YAG laser (quantum square pulse [QSP] mode, 120 mJ/10 Hz) + optibond FL + resin composite...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29167686/comparison-of-enamel-morphologic-characteristics-after-conditioning-with-various-combinations-of-acid-etchant-and-er-yag-laser-in-bonding-and-rebonding-procedures-a-sem-analysis
#16
Mohammad Sadegh Ahmad Akhoundi, Ardavan Etemadi, Maryam Nasiri, Elahe Soltanmohamadi Borujeni
Objectives: Many studies have evaluated re-etched enamel by using scanning electron microscopy (SEM); however, there is no evidence regarding the use of Erbium-doped yttrium aluminium garnet (Er:YAG) laser at primary and secondary bonding instead of acid etching with regards to enamel surface changes. The purpose of the present study was to determine that whether or not the methods of primary and secondary enamel preparation affect enamel characteristics after rebonding, by using SEM analysis...
May 2017: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29164181/gingival-depigmentation-using-er-yag-laser-and-scalpel-technique-a-six-month-prospective-clinical-study
#17
Rola Alhabashneh, Obaida Darawi, Yousef S Khader, Lama Ashour
OBJECTIVE: To compare the 6-month clinical efficacy of Er:YAG laser and standard scalpel technique in treating gingival hyperpigmentation. METHOD AND MATERIALS: Patients requesting treatment for moderate to severe gingival hyperpigmentation in the maxilla were enrolled in this split-mouth study. The contralateral maxillary sides were randomly assigned to receive either Er:YAG laser (continuous wavelength of 2,940 nm) with a noncontact tip or the standard scalpel technique...
November 21, 2017: Quintessence International
https://www.readbyqxmd.com/read/29152831/laser-treatment-of-cutaneous-angiokeratomas-a-systematic-review
#18
REVIEW
Jannett Nguyen, Lance W Chapman, Dorota Z Korta, Christopher B Zachary
Angiokeratomas can present therapeutic challenges, especially in cases of extensive lesions, where traditional surgical methods carry high risks of scarring and hemorrhage. Argon, pulsed dye (PDL), neodymium-doped yttrium aluminum garnet (Nd:YAG), copper vapor, potassium titanyl phosphate, carbon dioxide, and erbium-doped yttrium aluminum garnet (Er:YAG) lasers have emerged as alternative options. To review the use and efficacy of lasers in treating angiokeratomas. A PubMed search identified randomized clinical trials, cohort studies, case series, and case reports involving laser treatment of cutaneous angiokeratomas...
November 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/29133970/laser-and-platelet-rich-plasma-to-treat-medication-related-osteonecrosis-of-the-jaws-mronj-a-case-report
#19
Carlo Fornaini, Luigi Cella, Aldo Oppici, Anna Parlatore, Fabio Clini, Matteo Fontana, Giuseppe Lagori, Elisabetta Merigo
Aims: The appropriate management of Medication-Related OsteoNecrosis of the Jaw (MRONJ) is still a challenge for dentists and oral surgeons and in these last years high-technology instruments have been proposed at the different steps of interventions, also combined with promoters of tissue repair.The aim of this report is to show the advantages of a combined approach (laser and PRP) for the treatment of MRONJ. Methods: It is described the case of a patient positive for MRONJ observed at the Odontostomatology and Maxillo-Facial Surgery Unit of the Hospital of Piacenza where surgical approach was performed by using different devices: Er:YAG laser (2940 nm) to remove and vaporize necrotic hard tissue until bleeding bone; Platelet-Rich Plasma (PRP) to stimulate hard and soft tissue healing; diode laser (808 nm) to biostimulate the surgical site...
September 30, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29133969/treatment-of-chronic-lower-extremity-ulcers-with-a-new-er-yag-laser-technology
#20
J M Alcolea, E Hernández, P A Martínez-Carpio, M Vélez, V Khomchenko, A Sola, M A Trelles
Chronic lower extremity ulcers (CLEUs) have a high prevalence and are difficult to treat due to their various aetiologies. The aim of this study is to evaluate the results achieved in treating CLEUs using an Erbium: YAG (Er:YAG) laser with RecoSMA technology. This laser emits thousands of microbeams of energy causing superficial epidermal ablation and a separation of dermal fibres due to a mechanical-acoustic and resonance effect. The evaluation of the results achieved was carried out by questionnaires completed by 18 patients enrolled in the study...
September 30, 2017: Laser Therapy
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