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https://www.readbyqxmd.com/read/28210023/application-of-diode-laser-in-the-treatment-of-dentine-hypersensitivity
#1
Mirjana Gojkov-Vukelic, Sanja Hadzic, Amila Zukanovic, Enes Pasic, Veriva Pavlic
INTRODUCTION: Dentine hypersensitivity is characterized by acute, sharp pain arising from the exposed dentine, most commonly in response to thermal, tactile, or chemical stimuli, and which cannot be linked to any other pathological changes in the tooth or the environment. Therapy uses various impregnating agents in the form of solutions or gels and, in more recent times, laser. AIM: The aim of this research was to examine the effects of treatment of hypersensitive dental cervix with diode laser...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28196161/effectiveness-of-nd-yag-laser-fiberotomy-in-clinical-crown-lengthening-by-forced-eruption
#2
Masoumeh Faramarzi, Sahand Rikhtegaran, Sogol H Biroon
Crown lengthening by forced eruption is usually followed by conventional surgical procedures. The aim of the present study was to evaluate clinical use of Nd:YAG laser fiberotomy in crown lengthening by forced eruption as an alternative to surgery. Patients who needed crown lengthening were enrolled in this prospective case series and underwent forced eruption. Fiberotomy by Nd:YAG laser was performed 2 days after initiation of forced eruption and every 2 weeks afterward to reach optimum clinical crown length...
March 2017: International Journal of Periodontics & Restorative Dentistry
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
#3
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...
February 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28183677/hierarchical-micro-nano-structured-ti6al4v-surface-topography-via-two-step-etching-process-for-enhanced-hydrophilicity-and-osteoblastic-responses
#4
Byeong-Seok Moon, Sungwon Kim, Hyoun-Ee Kim, Tae-Sik Jang
Hierarchical micro-nano (HMN) surface structuring of dental implants is a fascinating strategy for achieving fast and mechanically stable fixation due to the synergetic effect of micro- and nano-scale surface roughness with surrounding tissues. However, the introduction of a well-defined nanostructure on a microstructure having complex surface geometry is still challenging. As a means of fabricating HMN surface on Ti6Al4V-ELI, target-ion induced plasma sputtering (TIPS) was used onto a sand-blasted, large-grit and acid-etched substrate...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28164460/development-and-application-of-led-arrays-for-use-in-phototherapy-research
#5
Mohammed A Hadis, Paul R Cooper, Michael R Milward, Patricia C Gorecki, Edward Tarte, James Churm, William M Palin
Lasers/LEDs demonstrate therapeutic effects for a range of biomedical applications. However, a consensus on effective light irradiation parameters and efficient and reliable measurement techniques remain limited. The objective here is to develop, characterise and demonstrate the application of LED arrays in order to progress and improve the effectiveness and accuracy of in vitro photobiomodulation studies. 96-well plate format LED arrays (400-850 nm) were developed and characterised to accurately assess irradiance delivery to cell cultures...
February 6, 2017: Journal of Biophotonics
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
#6
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...
January 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28145558/influence-of-a-pulsed-co2-laser-operating-at-9-4%C3%A2-%C3%A2-%C3%AE-m-on-the-surface-morphology-reflectivity-and-acid-resistance-of-dental-enamel-below-the-threshold-for-melting
#7
Jin Wan Kim, Raymond Lee, Kenneth H Chan, Jamison M Jew, Daniel Fried
No abstract text is available yet for this article.
February 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28132713/effects-of-epigallocatechin-gallate-an-antibacterial-cross-linking-agent-on-proliferation-and-differentiation-of-human-dental-pulp-cells-cultured-in-collagen-scaffolds
#8
Young-Sun Kwon, Hee-Jin Kim, Yun-Chan Hwang, Vinicius Rosa, Mi-Kyung Yu, Kyung-San Min
INTRODUCTION: This study aimed to evaluate the efficacy of epigallocatechin gallate (EGCG), an antibacterial cross-linking agent, on the proliferation and differentiation of human dental pulp cells (hDPCs) cultured in hydrogel collagen scaffolds. METHODS: The odontogenic differentiation induced by EGCG was evaluated by alkaline phosphatase (ALP) activity and odontogenic-related gene expression using real-time polymerase chain reaction. The antibacterial effect of EGCG was investigated by a disc diffusion assay in comparison with glutaraldehyde...
February 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28132137/influence-of-irradiation-by-a-novel-co2-9-3-%C3%AE-m-short-pulsed-laser-on-sealant-bond-strength
#9
P Rechmann, K Sherathiya, R Kinsel, R Vaderhobli, B M T Rechmann
The objective of this in vitro study was to evaluate whether irradiation of enamel with a novel CO2 9.3-μm short-pulsed laser using energies that enhance caries resistance influences the shear bond strength of composite resin sealants to the irradiated enamel. Seventy bovine and 240 human enamel samples were irradiated with a 9.3-μm carbon dioxide laser (Solea, Convergent Dental, Inc., Natick, MA) with four different laser energies known to enhance caries resistance or ablate enamel (pulse duration from 3 μs at 1...
January 29, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28131960/three-species-biofilm-model-onto-plasma-treated-titanium-implant-surface
#10
Adaias O Matos, Antônio P Ricomini-Filho, Thamara Beline, Erika S Ogawa, Bárbara E Costa-Oliveira, Amanda B de Almeida, Francisco H Nociti Junior, Elidiane C Rangel, Nilson C da Cruz, Cortino Sukotjo, Mathew T Mathew, Valentim A R Barão
In this study, titanium (Ti) was modified with biofunctional and novel surface by micro-arc oxidation (MAO) and glow discharge plasma (GDP) and we tested the development of a three-species periodontopatogenic biofilm onto the treated commercially-pure titanium (cpTi) surfaces. Machined and sandblasted surfaces were used as control group. Several techniques for surface characterizations and monoculture on bone tissue cells were performed. A multispecies biofilm composed of Streptococcus sanguinis, Actinomyces naeslundii and Fusobacterium nucleatum was developed onto cpTi discs for 16...
January 21, 2017: Colloids and Surfaces. B, Biointerfaces
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
#11
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/28117914/chemotherapeutic-decontamination-of-dental-implants-colonized-by-mature-multispecies-oral-biofilm
#12
Sebastien Dostie, Lubna T Alkadi, Gethin Owen, Jiarui Bi, Ya Shen, Markus Haapasalo, Hannu S Larjava
AIM: No studies have tested disinfectants on mature multispecies oral biofilms on titanium substrata. The aim of this study was to investigate the efficacy of commonly used antimicrobial agents in decontamination of multispecies mature oral biofilm on SLA titanium implants. METHODS: SLA titanium disks were inoculated with dental plaque and cultured anaerobically for 21 days. The disks were rinsed with 0.9% NaCl, exposed for 2 minutes to tetracycline paste, 1% Chlorhexidine gel (CHX), 35% phosphoric acid gel (Etch) or a novel chemical formula (0...
January 24, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28110070/mesoscale-porosity-at-the-dentin-enamel-junction-could-affect-the-biomechanical-properties-of-teeth
#13
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/28103053/mercury-amalgam-diffusion-in-human-teeth-probed-using-femtosecond-libs
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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