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Lasers in dentistry

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https://read.qxmd.com/read/30720935/er-yag-and-diode-laser-application-in-implant-bed-preparation-and-implant-uncovering-a-case-report
#1
Katarzyna Świder, Marzena Dominiak
The use of lasers in the field of dentistry has increased recently. Their numerous advantages and applications in soft and hard tissue surgeries make them a great alternative to conservative methods in dental implantology. The most commonly used lasers are diode and erbium-doped yttrium aluminium garnet (Er:YAG) lasers. The Er:YAG laser can be used in implant bed preparation, as it brings no thermal injury to the bone. The laser does not cause bone necrosis and positively affects osseointegration and the healing process...
February 4, 2019: Dental and medical problems
https://read.qxmd.com/read/30692744/assessment-of-healing-following-low-level-laser-irradiation-after-gingivectomy-operations-using-a-novel-soft-tissue-healing-index-a-randomized-double-blind-split-mouth-clinical-pilot-study
#2
Shreya Lingamaneni, Lohith Reddy Mandadi, Krishnajaneya Reddy Pathakota
Background: Lasers have become a part of modern dentistry since the past three decades. A wide-ranging assortment of lasers is being used in periodontology for both soft and hard tissue surgical procedures. Regardless of the frequent practice of using these well-known surgical lasers, there is another lesser familiar class of lasers called the low-level lasers. The main doctrine behind using low-level laser therapy (LLLT) is centered on the biostimulation, or the biomodulation effect, which relies on the dexterity of low-intensity laser energy when irradiated at a specific wavelength, is able to modify cellular activities (increase in cell metabolism and fibroblast and keratinocyte proliferation)...
January 2019: Journal of Indian Society of Periodontology
https://read.qxmd.com/read/30676839/enhanced-delivery-of-f-ca-2-k-and-na-ions-into-enamel-by-electrokinetic-flows
#3
C Peng, F B de Sousa, H Y Gan, H J Kwon, S Park, L Kilpatrick-Liverman, W Wang, S Lavender, S Pilch, J Han
As the outermost layer of the tooth crown, dental enamel is the most mineralized tissue in mammals, consisting of hydroxyapatite crystallites separated by long and narrow nanochannels. A major challenge in dentistry is how various molecules can be infiltrated into these nanopores in an efficient and controlled way. Here we show a robust method to transport various ions of interest, such as fluoride (F- ), potassium (K+ ), calcium (Ca++ ), and sodium (Na+ ), into these nanopores by electrokinetic flows. It is verified by fluorescence microscopy, laser-scanning confocal microscopy, mass spectrometry, and ion selective electrode technique...
January 24, 2019: Journal of Dental Research
https://read.qxmd.com/read/30659953/introduction-of-5-aminolevulinic-acid-as-a-theranostics-agent-in-dentistry
#4
Sahar Mohammadpour Lashkari, Hasan Kariminezhad, Hossein Amani, Parisa Mataji, Mostafa Rahimnejad
OBJECTIVE: The aim of this paper is to study thetheranostics potentials of 5-Aminolevulinic Acid (5-ALA)in dentistry. METHODS: Photodynamic inactivation (PDI) and fluorescence spectroscopy of Streptococcus sanguis, and laser induced fluorescence (LIF) of several decayed teeth were performed using 5-ALA. RESULTS: In the absence of 5-ALA, 15 min illumination of the bacteria by the means of an LED light source led to only 1.16% viability reduction...
January 16, 2019: Photodiagnosis and Photodynamic Therapy
https://read.qxmd.com/read/30642122/the-effectiveness-of-laser-assisted-surgical-excision-of-leukoplakias-and-hyperkeratosis-of-oral-mucosa-a-case-series-in-a-group-of-patients
#5
Dorina Lauritano, Alberta Lucchese, Federica Gabrione, Dario Di Stasio, Javier Silvestre Rangil, Francesco Carinci
Introduction : In the different branches of dentistry, the use of laser to solve different clinical situations is increasing due to numerous advantages that have been studied in literature since the 70s. Leucoplakia and hyperkeratosis can benefit from laser-assisted treatment. In most cases biopsy sampling, histological examination and, if no malignant cells are present, the follow-up is needed. However, even if the lesion is free of dysplasia patients often ask to eliminate these white spots that are always a cause of concern...
January 13, 2019: International Journal of Environmental Research and Public Health
https://read.qxmd.com/read/30602866/58-lasers-applications-in-prosthetic-dentistry
#6
REVIEW
S Vidya Bhat
No abstract text is available yet for this article.
November 2018: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/30602651/prefabricated-laser-sintered-composite-veneers-and-occlusal-vertical-dimensions-case-reports
#7
Ipsha Singh, Rohit Shetty, Deepak Mehta, Stephan Lampl, Naufil Chida
AIM: To highlight the concept of prefabricated veneers and occlusal vertical dimension (OVD) and series of case report using edelweiss prefabricated veneer system. BACKGROUND: Edelweiss prefabricated veneer system presents a concept of biofunctional esthetics using laser sintered composite resins. The system's biofunctionality and versatile area of application combined with its time and cost saving procedure make the Edelweiss veneer and occlusion system a sound investment for the future...
November 1, 2018: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/30560818/resin-infiltration-technique-and-fluoride-varnish-on-white-spot-lesions-in-children-preliminary-findings-of-a-randomized-clinical-trial
#8
RANDOMIZED CONTROLLED TRIAL
F Eren Giray, M A Durhan, E Haznedaroglu, B Durmus, I O Kalyoncu, I Tanboga
Aim: To clinically assess the efficacy of resin infiltration versus fluoride varnish for arresting white spot lesions (WSLs) on permanent teeth in children. Subjects and Methods: Among the children referred to the our University, Faculty of Dentistry, Department of Pediatric Dentistry, 23 aged between 8-14 with 81 anterior WSLs were included in the study. The participants were randomly assigned to either the resin infiltration group or the fluoride varnish group...
December 2018: Nigerian Journal of Clinical Practice
https://read.qxmd.com/read/30517484/antimicrobial-and-anti-caries-effect-of-new-glass-ionomer-cement-on-enamel-under-microcosm-biofilm-model
#9
Beatriz Martines de Souza, Daiana Moreli Soares Dos Santos, Ana Carolina Magalhães
The occurrence of caries lesions adjacent to restorations is a serious problem in Dentistry. Therefore, new antimicrobial restorative materials could help to prevent recurrent carious lesions. This study evaluated the effect of a new glass ionomer cement (Ion Z) on the viability of a microcosm biofilm and on the development of enamel demineralization. Enamel samples were filled with the following materials (n=9): A) Ion-Z (FGM Ltda); B) Maxxion R (FGM Ltda); C) Ketac Fil Plus (3M ESPE) and D) no restoration (control)...
November 2018: Brazilian Dental Journal
https://read.qxmd.com/read/30513706/decontamination-of-dental-implant-surfaces-by-the-er-yag-laser-beam-a-comparative-in-vitro-study-of-various-protocols
#10
Rima Nejem Wakim, Melanie Namour, Hoang Viet Nguyen, Andre Peremans, Toni Zeinoun, Alain Vanheusden, Eric Rompen, Samir Nammour
Oral rehabilitation with dental implants has revolutionized the field of dentistry and has been proven to be an effective procedure. However, the incidence of peri-implantitis has become an emerging concern. The efficacy of the decontamination of the implant surface, by means of lasers, is still controversial. Previous studies have revealed a reduction in osteoblast adhesion to carbon-contaminated implant surfaces. This in-vitro study aimed to evaluate the decontamination of failed implants by assessing the carbon proportion, after irradiation by low-energy erbium yttrium-aluminum-garnet laser (Er:YAG) (Fotona; 2940 nm, Ljubljana, Slovenia) for a single and for multiple passages, until getting a surface, free of organic matters; to find the appropriate procedure for dental-implant surface-decontamination...
December 1, 2018: Dentistry journal
https://read.qxmd.com/read/30431174/soft-tissue-cutting-efficiency-by-980-nm-laser-with-carbon-erbium-and-titanium-doped-optothermal-fiber-converters
#11
Andrey V Belikov, Alexei V Skrypnik
OBJECTIVES: The use of near-IR diode lasers for contact soft tissue surgery is attended by a risk of severe thermal damage of surrounding tissues due to the low cutting efficiency of these lasers. To increase the cutting efficiency of a near-IR lasers in contact surgery special tips (converters) which transform laser light to heat are used. The present in vivo study evaluated temperature dynamics and soft tissue cutting efficiency of 980 nm diode laser equipped with standard carbon- and novel erbium- and titanium-doped converters...
November 15, 2018: Lasers in Surgery and Medicine
https://read.qxmd.com/read/30424142/applications-of-laser-welding-in-dentistry-a-state-of-the-art-review
#12
REVIEW
Asma Perveen, Carlo Molardi, Carlo Fornaini
The dental industry without lasers is inconceivable right now. This captivating technology has outlasted other possible alternative technologies applied in dentistry in the past due to its precision, accuracy, minimal invasive effect as well as faster operating time. Other alternatives such as soldering, resistance (spot) welding, plasma (torch) welding, and single pulse tungsten inert gas welding have their pros and cons; nevertheless, laser welding remains the most suitable option so far for dental application...
April 28, 2018: Micromachines
https://read.qxmd.com/read/30397377/efficacy-of-caries-removal-by-carie-care-and-erbium-doped-yttrium-aluminum-garnet-laser-in-primary-molars-a-scanning-electron-microscope-study
#13
Attiguppe Prabhakar, Manjunath Lokeshwari, Saraswathi V Naik, Chandrashekar Yavagal
Aim: To compare and evaluate morphological changes and bacterial deposits in primary carious molars after caries excavation with Carie-Care, erbium-doped yttrium aluminum garnet (Er:YAG) laser, and round tungsten carbide bur. Materials and methods: Thirty human carious primary molars extracted for therapeutic reasons were sectioned mesiodistally. These sectioned samples were allocated into three groups (20 samples each): group I: Carie Care, group II: Er:YAG laser, and group III: round tungsten carbide bur...
July 2018: International Journal of Clinical Pediatric Dentistry
https://read.qxmd.com/read/30311849/nonsurgical-periodontal-treatment-by-erbium-yag-laser-promotes-regression-of-gingival-overgrowth-in-patient-taking-cyclosporine-a-a-case-report
#14
Saverio Capodiferro, Angela Tempesta, Luisa Limongelli, Eugenio Maiorano, Stefano Benedicenti, Gianfranco Favia
OBJECTIVE AND BACKGROUND: To report on a case of cyclosporine A-related gingival overgrowth (GO) treated by conventional scaling and Erbium:YAG laser that unexpectedly showed complete healing with normalization of the gingiva, making unnecessary further surgical treatment for gingival volume reduction. Since Erbium:YAG laser was approved in 1997 by the U.S. Food and Drug Administration for hard and soft tissue treatments in dentistry, several studies have been published to demonstrate its efficacy for bone cutting, plaque and subgingival calculus removal, and antiseptic effects both on soft and hard periodontal tissues...
October 11, 2018: Photomedicine and Laser Surgery
https://read.qxmd.com/read/30294175/the-efficacy-of-low-level-laser-therapy-in-treating-oral-papilloma-a-case-reporting-a-lingual-location
#15
Narjiss Akerzoul, Saliha Chbicheb
Oral papilloma is a benign proliferation of the stratified epithelium, which results in a papillary or verrucous exophytic mass, which can be induced by human papillomavirus. These oral mucosa lesions are most often asymptomatic and have small progression. Laser-assisted surgery is common nowadays with several advantages including successful hemostasis, devoid of sutures, wound sterilization and minimal postoperative pain, and edema. The aim of this report is to present the oral papilloma in a 40-year-old female patient and its treatment with soft-tissue laser...
September 2018: Contemporary Clinical Dentistry
https://read.qxmd.com/read/30293187/micron-scale-crack-propagation-in-laser-irradiated-enamel-and-dentine-studied-with-nano-ct
#16
Abtesam Aljdaimi, Hugh Devlin, Mark Dickinson, Timothy Burnett, Thomas J A Slater
OBJECTIVES: The aim of this study was to see the effect of Er:YAG laser irradiation in dentine and compare this with its effect in enamel. The mechanism of crack propagation in dentine was emphasised and its clinical implications were discussed. MATERIALS AND METHODS: Coronal sections of sound enamel and dentine were machined to 50-μm thickness using a FEI-Helios Plasma (FIB). The specimen was irradiated for 30 s with 2.94-μm Er:YAG laser radiation in a moist environment, using a sapphire dental probe tip, with the tip positioned 2 mm away from the sample surface...
October 6, 2018: Clinical Oral Investigations
https://read.qxmd.com/read/30291465/effectiveness-of-photopolymerization-in-composite-resins-using-a-novel-445-nm-diode-laser-in-comparison-to-led-and-halogen-bulb-technology
#17
Thomas Drost, Susanne Reimann, Matthias Frentzen, Jörg Meister
Challenges especially in the minimal invasive restorative treatment of teeth require further developments of composite polymerization techniques. These include, among others, the securing of a complete polymerization with moderate thermal stress for the pulp. The aim of this study is to compare current light curing sources with a blue diode laser regarding curing depth and heat generation during the polymerization process. A diode laser (445 nm), a LED, and a halogen lamp were used for polymerizing composite resins...
October 6, 2018: Lasers in Medical Science
https://read.qxmd.com/read/30212961/efficacy-of-diode-emitting-diode-led-photobiomodulation-in-pain-management-facial-edema-trismus-and-quality-of-life-after-extraction-of-retained-lower-third-molars-a-randomized-double-blind-placebo-controlled-clinical-trial
#18
RANDOMIZED CONTROLLED TRIAL
Carlos Alberto Tenis, Manoela Domingues Martins, Marcela Leticia Leal Gonçalves, Daniela de Fátima Teixeira da Silva, João Júlio da Cunha Filho, Marco Antonio Trevizani Martins, Raquel Agnelli Mesquita-Ferrari, Sandra Kalil Bussadori, Kristianne Porta Santos Fernandes
BACKGROUND: In dentistry, one of the most common surgical procedures is the removal of retained third molars. This surgery generates great morbidity to the participants for causing pain, edema, and trismus due to surgical trauma. The objective of the present study is to evaluate the efficacy of photobiomodulation with light emitting diode (LED) in the control of pain, facial edema, trismus, and quality of life resulting from the extraction of retained lower third molars. METHODS: A randomized, double-blind, placebo-controlled clinical trial involving 38 adult participants, who meet the criteria of eligibility and agree to participate in the study...
September 2018: Medicine (Baltimore)
https://read.qxmd.com/read/30184815/an-analysis-on-the-potential-of-diode-pumped-solid-state-lasers-for-dental-materials
#19
Roberto De Santis, Teresa Russo, Antonio Gloria
Material structure-property relationship is strongly related to the employed process technology. Over the past years, laser processing of engineering materials has been proposed in many fields and different uses for diode lasers have been found in dentistry. In this contest, the potential of GaN- and InGaN-based laser diodes to cure dental materials was analysed. Two wavelengths of 405 nm and 445 nm were used as heat or light sources for warm condensation of gutta-percha, light transmission in dental posts and brackets or light curing of dental composites...
November 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://read.qxmd.com/read/30126687/internal-adaptation-of-cobalt-chromium-posts-fabricated-by-selective-laser-melting-technology
#20
Wei Liu, Hai Qing, Xibo Pei, Jian Wang
STATEMENT OF PROBLEM: Selective laser melting (SLM) has become popular in prosthetic dentistry. However, only limited information is available for the internal adaptation of cobalt-chromium (Co-Cr) posts fabricated by SLM. PURPOSE: The purpose of this in vitro study was to investigate the internal adaptation of Co-Cr metal posts fabricated by SLM technique. MATERIAL AND METHODS: Thirty-six Co-Cr metal posts were fabricated by conventional casting, subtractive computer-aided design and computer-aided manufacturing (CAD-CAM), and additive CAD-CAM, by making an impression from a standardized model of a tooth with a single root canal...
August 18, 2018: Journal of Prosthetic Dentistry
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