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https://www.readbyqxmd.com/read/28616700/evaluation-of-irradiation-effects-of-near-infrared-free-electron-laser-of-silver-alloy-for-dental-application
#1
Takao Kuwada-Kusunose, Alisa Kusunose, Masanobu Wakami, Chikako Takebayashi, Haruhiko Goto, Masahiro Aida, Takeshi Sakai, Keisuke Nakao, Kyoko Nogami, Manabu Inagaki, Ken Hayakawa, Kunihiro Suzuki, Toshiro Sakae
In the application of lasers in dentistry, there is a delicate balance between the benefits gained from laser treatment and the heat-related damage arising from laser irradiation. Hence, it is necessary to understand the different processes associated with the irradiation of lasers on dental materials. To obtain insight for the development of a safe and general-purpose laser for dentistry, the present study examines the physical effects associated with the irradiation of a near-infrared free-electron laser (FEL) on the surface of a commonly used silver dental alloy...
June 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28607639/effect-of-diode-laser-irradiation-on-compressive-strength-of-dental-amalgam
#2
Mitra Tabari, Reza Fekrazad, Homayoun Alaghemand, Mahtab Hamzeh
INTRODUCTION: One of the biggest disadvantages of dental amalgam is that gaining its ultimate strength is a slow process. The use of a rapid-setting amalgam with high early compressive strength could be a better option in preventing early fractures in pediatric dentistry. The aim of this study was to determine the effect of diode laser irradiation on compressive strength of dental amalgam. METHODS: A case-control study was performed on 180 amalgam samples made at the Tehran Dental Material Research Center in 2014...
April 2017: Electronic Physician
https://www.readbyqxmd.com/read/28598190/paediatric-laser-dentistry-part-2-hard-tissue-laser-applications
#3
G Olivi, C Caprioglio, M Olivi, M D Genovese
Erbium lasers can provide effective and minimally invasive caries removal in children. The bonding phase remains a critic step as well as the choice of material. Glass ionomers exhibits lower bonding properties in laser irradiated teeth compared to the conventional method or to composite and resin modified glass ionomer. Laser can also provide effective decontamination and coagulation effects in vital and non vital pulp therapy of primary teeth, improving and simplifying the cleaning and disinfecting steps.
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28494610/paediatric-laser-dentistry-part-1-general-introduction
#4
C Caprioglio, G Olivi, M D Genovese
Knowledge of the physical characteristics of different laser lights and optical and thermal properties of oral tissues is very important to understand the interaction of dental lasers with biological tissues. Choosing the correct dental laser is crucial to match specific wavelengths with target chromophores of different tissues; this affinity makes laser irradiation selective and therefore minimally invasive. Various types of lasers are used in dentistry, offering a viable alternative to low and high-speed handpieces and surgical blades, and also minimising fear and discomfort of the patient...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28462406/effectiveness-of-radio-waves-application-in-modern-general-dental-procedures-an-update
#5
Arslan Qureshi, Sergio Varela Kellesarian, Michael A Pikos, Fawad Javed, Georgios E Romanos
OBJECTIVE: The purpose of the present study was to review indexed literature and provide an update on the effectiveness of high-frequency radio waves (HRW) application in modern general dentistry procedures. DATA SOURCES: Indexed databases were searched to identify articles that assessed the efficacy of radio waves in dental procedures. RESULTS: Radiosurgery is a refined form of electrosurgery that uses waves of electrons at a radiofrequency ranging between 2 and 4 MHz...
April 28, 2017: Quintessence International
https://www.readbyqxmd.com/read/28451816/in-vitro-biological-outcome-of-laser-application-for-modification-or-processing-of-titanium-dental-implants
#6
Ahmed Hindy, Farzam Farahmand, Fahimeh Sadat Tabatabaei
There are numerous functions for laser in modern implant dentistry including surface treatment, surface coating, and implant manufacturing. As laser application may potentially improve osseointegration of dental implants, we systematically reviewed the literature for in vitro biological responses to laser-modified or processed titanium dental implants. The literature was searched in PubMed, ISI Web, and Scopus, using keywords "titanium dental implants," "laser," "biocompatibility," and their synonyms. After screening the 136 references obtained, 28 articles met the inclusion criteria...
April 27, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28450262/evaluation-of-photodynamic-therapy-in-treatment-of-oral-erosive-lichen-planus-in-comparison-with-topically-applied-corticosteroids
#7
Diana Mostafa, Eglal Moussa, Manal Alnouaem
BACKGROUND: The treatment of erosive oral lichen planus represents a therapeutic challenge. Despite numerous existing remedies, some of these treatments display disappointed results. Since it is a chronic disease with no current cure, the best treatment should target mainly the reduction of the duration and severity of symptomatic outbreaks with minimal side effects. To date, corticosteroids remain the first choice of treatment for oral lichen planus (OLP) patients. Although, topical corticosteroids have been found to be the safest and the most successful agents in the treatment of OLP, their prolonged use may cause mucosal problems and may lead to systemic complications...
April 24, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28337885/role-of-diode-lasers-in-oro-facial-pain-management
#8
REVIEW
F Javed, S V Kellesarian, G E Romanos
With the increasing use of low level laser therapy (LLLT) in clinical dentistry, the aim of the present study was to assess the effectiveness of diode lasers in the management of orofacial pain. Indexed databases were searched without language and time restrictions up to and including July 2016 using different combinations of the following key words: oral, low level laser therapy, dental, pain, diode lasers, discomfort and analgesia. From the literature reviewed it is evident that LLLT is effective compared to traditional procedures in the management of oro-facial pain associated to soft tissue and hard tissue conditions such as premalignant lesions, gingival conditions and dental extractions...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28332922/abstracts-and-talks-from-the-world-federation-for-laser-dentistry-asia-pacific-division-laser-symposium-in-conjunction-with-the-55-th-iranian-dental-association-ida-congress-may-12-15-2015-tehran-iran
#9
https://www.readbyqxmd.com/read/28314941/neuropeptide-expression-and-morphometric-differences-in-crushed-alveolar-inferior-nerve-of-rats-effects-of-photobiomodulation
#10
Daniel Oliveira Martins, Fabio Martinez Dos Santos, Adriano Polican Ciena, Ii-Sei Watanabe, Luiz Roberto G de Britto, José Benedito Dias Lemos, Marucia Chacur
Inferior alveolar nerve (IAN) injuries may occur during various dental routine procedures, especially in the removal of impacted lower third molars, and nerve recovery in these cases is a great challenge in dentistry. Here, the IAN crush injury model was used to assess the efficacy of photobiomodulation (PBM) in the recovery of the IAN in rats following crushing injury (a partial lesion). Rats were divided into four experimental groups: without any procedure, IAN crush injury, and IAN crush injury with PBM and sham group with PBM...
May 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28300725/diagnosis-of-occlusal-caries-lesions-in-deciduous-molars-by-coherent-light-scattering-pattern-speckle
#11
Silvia Regina Garcia Olivan, Alessandro Melo Deana, Marcelo Mendes Pinto, Ravana Angelini Sfalcin, Kristianne Porta Santos Fernandes, Raquel Agnelli Mesquita-Ferrari, Renato Araujo Prates, Sandra Kalil Bussadori
BACKGROUND: In this study is presented the correlation between laser speckle images and detection of incipient caries lesions by changing the microstructure of the surface of tooth enamel. METHODS: We used 30 healthy deciduous molar teeth collected from the Biobank Human Teeth, Faculty of Dentistry, University of São Paulo who had carious lesions induced by the pH cycling method. The samples were evaluated for the diagnosis of caries by two METHODS: ICDAS and speckle pattern of coherent light scattering after 5, 10 and 15days and the results were statistically analyzed using α=0...
March 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28194533/the-diagnostic-accuracy-of-a-laser-fluorescence-device-and-digital-radiography-in-detecting-approximal-caries-lesions-in-posterior-permanent-teeth-an-in-vivo-study
#12
R Menem, I Barngkgei, N Beiruti, I Al Haffar, Easter Joury
The aim of this in vivo study was to test the diagnostic accuracy of a pen-type laser fluorescence (LFpen) device in detecting approximal caries lesions, in posterior permanent teeth, at the cavitation and non-cavitation thresholds, and compare it with that of digital bitewing radiography. Thirty patients (aged 18-37), who attended the Faculty of Dentistry at Damascus University for a dental examination, were consecutively screened. Ninety approximal surfaces of posterior permanent teeth without frank cavitations, enamel hypoplasia or restorations were selected and examined using the LFpen (DIAGNOdent pen) and digital bitewing radiography...
April 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28147333/treatment-of-oral-hyperpigmentation-and-gummy-smile-using-lasers-and-role-of-plasma-as-a-novel-treatment-technique-in-dentistry-an-introductory-review
#13
REVIEW
Nayansi Jha, Jae Jun Ryu, Rizwan Wahab, Abdulaziz A Al-Khedhairy, Eun Ha Choi, Nagendra Kumar Kaushik
Gingival hyperpigmentation and the condition known as gummy smile are very common dental cosmetic problems. Gingival hyperpigmentation arises due to the excess presence of melanin in certain regions of the gums. In the case of gummy smile, more than the required amount of gingival tissue is exposed upon smiling. An aesthetically pleasing smile should expose only a negligible amount of gingival tissue. Gummy smile and gingival hyperpigmentation can have detrimental effects on the aesthetic quality of a smile, and thereby a wide variety of treatment options must be taken into consideration depending patient outcome objectives...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28110070/mesoscale-porosity-at-the-dentin-enamel-junction-could-affect-the-biomechanical-properties-of-teeth
#14
Elsa Vennat, Wenlong Wang, Rachel Genthial, Bertrand David, Elisabeth Dursun, Aurélien Gourrier
In this paper, the 3D-morphology of the porosity in dentin is investigated within the first 350μm from the dentin-enamel junction (DEJ) by fluorescence confocal laser scanning microscopy (CLSM). We found that the porous microstructure exhibits a much more complex geometry than classically described, which may impact our fundamental understanding of the mechanical behavior of teeth and could have practical consequences for dental surgery. Our 3D observations reveal numerous fine branches stemming from the tubules which may play a role in cellular communication or mechanosensing during the early stages of dentinogenesis...
January 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28028971/assessment-of-pain-when-uncovering-implants-with-er-yag-laser-or-scalpel-for-second-stage-surgery
#15
Jacek Matys, Marzena Dominiak
BACKGROUND: Different methods aimed at decreasing pain during some soft tissue procedures in dentistry are still under research. Modern devices as lasers could be a method to reduce the pain and duration of second stage implant surgery. OBJECTIVES: To assess the pain and the impression quality when uncovering implants with a laser and with a scalpel. MATERIAL AND METHODS: The analysis included 60 implants (Dentium SuperLine, Suwon, Korea) in 30 patients (23 women and 7 men) aged 25-69...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27990188/application-of-laser-irradiation-for-restorative-treatments
#16
Amin Davoudi, Maryam Sanei, Hamid Badrian
Nowadays, lasers are widely used in many fields of medicine. Also, they can be applied at many branches of dental practice such as diagnosis, preventive procedures, restorative treatments, and endodontic therapies. Procedures like caries removal, re-mineralization, and vital pulp therapy are the most noticeable effects of laser irradiation which has gained much attention among clinicians. With controlled and appropriate wavelength, they can help stimulating dentinogenesis, controlling pulpal hemorrhage, sterilization, healing of collagenic proteins, formation of a fibrous matrix, and inducing hard tissue barrier...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27938451/imaging-of-dental-hard-tissue-surfaces-prepared-by-an-ultrashort-pulsed-laser-system-uspl
#17
Matthias Schäper, Susanne Reimann, Matthias Frentzen, Jörg Meister
The aim of this study was to compare surface structures of laser-irradiated dental hard tissues using confocal (CFM), atomic force (AFM), and scanning electron microscopy (SEM). The general potential of the AFM in analyzing laser-irradiated surfaces was determined in this context. Specimens of human enamel and dentin were irradiated using an 8.6 W Nd:YVO4 laser with a pulse duration of 8 ps, λ Center=1,064 nm, and a pulse repetition rate of 500 kHz. Surface topology of irradiated areas (1 mm2) was investigated using AFM, CFM, and SEM...
December 2016: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/27868208/special-issue-on-lasers-in-dentistry
#18
Praveen R Arany, Petra Wilder-Smith
No abstract text is available yet for this article.
December 2016: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/27814258/efficacy-of-nd-yag-and-gaalas-lasers-in-comparison-to-2-fluoride-gel-for-the-treatment-of-dentinal-hypersensitivity
#19
Marília De Lima Soares, Geane Bandeira Porciúncula, Mara Ilka Holanda Medeiros De Lucena, Luiz Alcino Monteiro Gueiros, Jair Carneiro Leão, Alessandra De Albuquerque Tavares Carvalho
Lasers demonstrate excellent therapeutic action and are often employed in dentistry for the treatment of diverse clinical conditions. The aim of this study was to compare the efficacy of neodymium-doped yttrium-aluminum-garnet (Nd:YAG) laser, gallium-aluminum-arsenide (GaAlAs) laser, and 2% neutral fluoride gel in the treatment of dentinal hypersensitivity. Twenty-three patients were evaluated, involving a total of 48 quadrants with at least 1 tooth with dentinal hypersensitivity (89 teeth total). Pain intensity was recorded on a visual analog scale at the time of clinical examination (baseline), immediately after treatment, and 1 week posttreatment...
November 2016: General Dentistry
https://www.readbyqxmd.com/read/27721562/four-different-diode-lasers-comparison-on-soft-tissues-surgery-a-preliminary-ex-vivo-study
#20
Carlo Fornaini, Elisabetta Merigo, Michele Sozzi, Jean-Paul Rocca, Federica Poli, Stefano Selleri, Annamaria Cucinotta
Objectives: The introduction of diode lasers in dentistry had several advantages, principally consisting on the reduced size, reduced cost and possibility to beam delivering by optical fibbers. Up today only the wavelengths around 810 and 980 nm were the most utilized in oral surgery but recently more different lasers had been proposed. The aim of this study was to compare the efficacy of four diode laser wavelengths (810, 980, 1470 and 1950 nm) for the ablation of soft tissues. Material and methods: Specimens were surgically collected from the dorsal surface of four bovine tongues and irradiated by four different diode wavelengths...
June 29, 2016: Laser Therapy
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