keyword
MENU ▼
Read by QxMD icon Read
search

Laser dental

keyword
https://www.readbyqxmd.com/read/28103053/mercury-amalgam-diffusion-in-human-teeth-probed-using-femtosecond-libs
#1
Liciane Toledo Bello, Patricia Aparecida da Ana, Dário Santos, Francisco José Krug, Denise Maria Zezell, Nilson Dias Vieira, Ricardo Elgul Samad
In this work the diffusion of mercury and other elements from amalgam tooth restorations through the surrounding dental tissue (dentin) was evaluated using femtosecond laser-induced breakdown spectroscopy (fs-LIBS). To achieve this, seven deciduous and eight permanent extracted human molar teeth with occlusal amalgam restorations were half-sectioned and analyzed using pulses from a femtosecond laser. The measurements were performed from the amalgam restoration along the amalgam/dentin interface to the apical direction...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28089336/a-comparative-study-of-additive-and-subtractive-manufacturing-for-dental-restorations
#2
Eun-Jeong Bae, Il-Do Jeong, Woong-Chul Kim, Ji-Hwan Kim
STATEMENT OF PROBLEM: Digital systems have recently found widespread application in the fabrication of dental restorations. For the clinical assessment of dental restorations fabricated digitally, it is necessary to evaluate their accuracy. However, studies of the accuracy of inlay restorations fabricated with additive manufacturing are lacking. PURPOSE: The purpose of this in vitro study was to evaluate and compare the accuracy of inlay restorations fabricated by using recently introduced additive manufacturing with the accuracy of subtractive methods...
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28064220/gene-expression-analysis-of-cultured-rat-endothelial-cells-after-nd-yag-laser-irradiation-by-affymetrix-genechip-array
#3
Yoshiko Masuda, Satoshi Yokose, Hiroshi Sakagami
Endothelial cells and dental pulp cells enhance osteo-/odontogenic and angiogenic differentiation. In our previous study, rat pulp cells migrated to Nd:YAG laser-irradiated endothelial cells in an insert cell culture system. The purpose of this study was to examine the possible changes in the gene expression of cultured rat aortic endothelial cells after Nd:YAG laser irradiation using affymetrix GeneChip Array. Total RNA was extracted from the cells at 5 h after laser irradiation. Gene expressions were evaluated by DNA array chip...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28033183/investigation-of-osteoinductive-effects-of-different-compositions-of-bioactive-glass-nanoparticles-for-bone-tissue-engineering
#4
AmirHossein Tavakolizadeh, Mehdi Ahmadian, MohammadHossein Fathi, Ali Doostmohammadi, Ehsan Seyedjafari, Abdolreza Ardeshirylajimi
Bioactive glasses (BG) is one of the well-known materials that used as dental and bone implants, for this reason it is always interesting for researchers has been to increase BG efficiency in the bone tissue engineering. The aim of this work was to evaluate the osteoinductivity of BG different composition nanoparticles with SiO2-CaO-P2O5. The 45S, 58S, and 63S compositions were prepared via the sol-gel technique. Characterization techniques such as X-ray diffraction, field emission scanning electron microscopy (FE-SEM), and laser Doppler electrophoresis (LDE) were used...
December 26, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28028987/evaluation-of-the-erosive-potential-of-selected-isotonic-drinks-in-vitro-studies
#5
Aneta Ostrowska, Witold Szymański, Łukasz Kołodziejczyk, Elżbieta Bołtacz-Rzepkowska
BACKGROUND: Isotonic drinks are an important component of the diet of athletes. Sports drinks cause the body to maintain proper hydration and supplement minerals which are lost in sweat during excessive exercising. Aside from the benefits of isotonic drinks, it is important to be aware of the harmful effects of citric acid within the products, which could cause enamel erosion. OBJECTIVES: The aim of the study was to evaluate the erosive potential of sports drinks using confocal scanning laser microscopy (CLSM)...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28028971/assessment-of-pain-when-uncovering-implants-with-er-yag-laser-or-scalpel-for-second-stage-surgery
#6
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/28028422/can-low-level-laser-therapy-benefit-bone-regeneration-in-localized-maxillary-cystic-defects-a-prospective-randomized-control-trial
#7
Ahmed Abbas Zaky, Hanaa Mohamed Mohamed El Shenawy, Tarek Abdel Hamed Harhsh, Mahmoud Shalash, Noha Mohamed Ismael Awad
AIM: The aim of the study was to evaluate the effect of Low-Level Laser Therapy (LLLT) on bone formation in cystic defects following cyst enucleation. PATIENTS AND METHODS: The sample was composed of sixteen patients with enucleated maxillary bony cystic lesions. With an age range from 20 - 44 grouped as eight Laser and eight Control patients. Laser group was subjected to low intensity diode laser immediately after surgery and then for three times per week for two weeks using a therapeutic laser irradiation...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28009052/non-pharmacological-interventions-for-alleviating-pain-during-orthodontic-treatment
#8
REVIEW
Padhraig S Fleming, Hardus Strydom, Christos Katsaros, Lci MacDonald, Michele Curatolo, Piotr Fudalej, Nikolaos Pandis
BACKGROUND: Pain is prevalent during orthodontics, particularly during the early stages of treatment. To ensure patient comfort and compliance during treatment, the prevention or management of pain is of major importance. While pharmacological means are the first line of treatment for alleviation of orthodontic pain, a range of non-pharmacological approaches have been proposed recently as viable alternatives. OBJECTIVES: To assess the effects of non-pharmacological interventions to alleviate pain associated with orthodontic treatment...
December 23, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28005823/diode-laser-clinical-efficacy-and-mini-invasivity-in-surgical-exposure-of-impacted-teeth
#9
Mario Migliario, Manuela Rizzi, Alberta Greco Lucchina, Filippo Renò
The gold standard to arrange impacted teeth in the dental arch is represented by a surgical approach followed by orthodontic traction force application. In the literature, many surgical approaches are proposed to reach such a scope. The aim of the present study is to demonstrate how laser technique could positively assist surgical approaches.Study population was composed by 16 patients undergoing orthodontic treatment of 20 impacted teeth. In 10 patients (population A) surgical exposure of the impacted teeth was performed using a 980 nm diode laser, while in the other 10 patients (population B), surgical incision was performed using a traditional lancet...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28000274/digital-technology-in-fixed-implant-prosthodontics
#10
REVIEW
Tim Joda, Marco Ferrari, German O Gallucci, Julia-Gabriela Wittneben, Urs Brägger
Digital protocols are increasingly influencing prosthodontic treatment concepts. Implant-supported single-unit and short-span reconstructions will benefit mostly from the present digital trends. In these protocols, monolithic implant crowns connected to prefabricated titanium abutments, which are created based on data obtained from an intraoral scan followed by virtual design and production, without the need of a physical master cast, have to be considered in lieu of conventional manufacturing techniques for posterior implant restorations...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28000113/adhesion-and-differentiation-of-saos-2-osteoblast-like-cells-on-chromium-doped-diamond-like-carbon-coatings
#11
Elena Filova, Marta Vandrovcova, Miroslav Jelinek, Josef Zemek, Jana Houdkova, Jan Remsa, Tomas Kocourek, Lubica Stankova, Lucie Bacakova
Diamond-like carbon (DLC) thin films are promising for use in coating orthopaedic, dental and cardiovascular implants. The problem of DLC layers lies in their weak layer adhesion to metal implants. Chromium is used as a dopant for improving the adhesion of DLC films. Cr-DLC layers were prepared by a hybrid technology, using a combination of pulsed laser deposition (PLD) from a graphite target and magnetron sputtering. Depending on the deposition conditions, the concentration of Cr in the DLC layers moved from zero to 10...
January 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/27990188/application-of-laser-irradiation-for-restorative-treatments
#12
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/27965635/photoinactivation-using-visible-light-plus-water-filtered-infrared-a-vis-wira-and-chlorine-e6-ce6-eradicates-planktonic-periodontal-pathogens-and-subgingival-biofilms
#13
Ali Al-Ahmad, Aleksander Walankiewicz, Elmar Hellwig, Marie Follo, Christian Tennert, Annette Wittmer, Lamprini Karygianni
Alternative treatment methods for pathogens and microbial biofilms are required due to the widespread rise in antibiotic resistance. Antimicrobial photodynamic therapy (aPDT) has recently gained attention as a novel method to eradicate pathogens. The aim of this study was to evaluate the antimicrobial effects of a novel aPDT method using visible light (vis) and water infiltrated infrared A (wIRA) in combination with chlorine e6 (Ce6) against different periodontal pathogens in planktonic form and within in situ subgingival oral biofilms...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27957272/the-effect-of-diode-laser-and-topical-steroid-on-serum-level-of-tnf-alpha-in-oral-lichen-planus-patients
#14
Nagwa-Abdelhamid Othman, Olfat-Gamil Shaker, Hanaa-Mohamed Elshenawy, Wessam Abd-Elmoniem, Amany-Mohy Eldin, Mariam-Yehia Fakhr
BACKGROUND: Oral lichen planus (OLP) is a common chronic inflammatory mucosal disease with a multifactorial etiology. It is a T-cell mediated autoimmune disease in which the cytotoxic CD8+T cells trigger apoptosis of the basal cells of oral epithelium. Various treatment regimens have been employed for management of symptomatic OLP. This study was carried out to evaluate the effect of topical steroids as well as laser on the clinical signs and symptoms detected by reticular, atrophic, erosive score (RAE score) and tumor necrosis factor- α (TNF-α) level in the serum of patients with symptomatic OLP...
December 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27943658/objective-identification-of-dental-abnormalities-with-multispectral-fluorescence-imaging
#15
Surya Pratap Singh, Pauli Fält, Ishan Barman, Arto Koistinen, Ramachandra Rao Dasari, Arja M Kullaa
Sensitive methods that can enable early detection of dental diseases (caries and calculus) are desirable in clinical practice. Optical spectroscopic approaches have emerged as promising alternatives owing to their wealth of molecular information and lack of sample preparation requirements. In the present study, using multispectral fluorescence imaging, we have demonstrated that dental caries and calculus can be objectively identified on extracted tooth. Spectral differences among control, carious and calculus conditions were attributed to the porphyrin pigment content, which is a byproduct of bacterial metabolism...
December 12, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27938451/imaging-of-dental-hard-tissue-surfaces-prepared-by-an-ultrashort-pulsed-laser-system-uspl
#16
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/27931721/mesoporous-silica-fillers-and-resin-composition-effect-on-dental-composites-cytocompatibility
#17
Nina Attik, Franck Hallay, Laurence Bois, Arnaud Brioude, Brigitte Grosgogeat, Pierre Colon
OBJECTIVE: Many new dental composites containing mesoporous silica fillers have been developed to improve rheological properties and enhance the resin-filler interface. To investigate the correlation between the cytocompatibility of several dental composites and their composition; two aspects have been considered: presence of bisphenol A (BPA)-glycidyl methacrylate (Bis-GMA) or triethyleneglycol-dimethacrylate (TEGDMA) among the resin monomers and presence of porous particles among the filler blends...
December 5, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27931430/policy-on-the-use-of-lasers-for-pediatric-dental-patients
#18
(no author information available yet)
No abstract text is available yet for this article.
October 2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/27930868/laser-surface-pattering-of-titanium-for-improving-the-biological-performance-of-dental-implants
#19
Christoph Zwahr, Denise Günther, Tina Brinkmann, Nikolai Gulow, Steffen Oswald, Marzellus Grosse Holthaus, Andrés Fabián Lasagni
Direct laser interference patterning (DLIP) is used to produce periodic line-like patterns on titanium surfaces. An Nd:YAG laser operating at 532 nm wavelength with a pulse duration of 8 ns is used for the laser patterning process. The generated periodic patterns with spatial periods of 5, 10, and 20 µm are produced with energy densities between 0.44 and 2.6 J cm(-)(2) with a single laser pulse. With variation of energy density, different shapes of the arising topography are observed due to the development of the solidification front of the molten material at the maxima positions...
December 8, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27926747/peroxide-dental-bleaching-via-laser-microchannels-and-tooth-color-measurements
#20
Gregory Altshuler, Andrey Belikov, Alexei Skrypnik, Felix Feldchtein, Alexandra Pushkareva, Ksenia Shatilova, Igor Cernavin, Valery Tuchin
No abstract text is available yet for this article.
December 1, 2016: Journal of Biomedical Optics
keyword
keyword
78955
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"