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https://www.readbyqxmd.com/read/28535395/a-zinc-chloride-doped-adhesive-facilitates-sealing-at-the-dentin-interface-a-confocal-laser-microscopy-study
#1
Manuel Toledano, Raquel Osorio, Estrella Osorio, Inmaculada Cabello, Manuel Toledano-Osorio, Fátima S Aguilera
The aim of this study was to ascertain the effect of Zn-doping of dental adhesives and mechanical load cycling on the micromorphology of the resin-dentin interdiffusion zone (of sound and caries affected dentin). The investigation considered two different Zn-doped adhesive approaches and evaluated the interface using a doubled dye fluorescent technique and a calcium chelator fluorophore under a confocal laser scanning microscopy. Sound and carious dentin-resin interfaces of unloaded specimens were deficiently resin-hybridized, in general...
May 19, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28529280/alternative-methods-to-visual-and-radiographic-examinations-for-approximal-caries-detection
#2
Naif Abogazalah, Masatoshi Ando
A shift in caries prevalence from occlusal surfaces to approximal surfaces has been demonstrated by epidemiological studies. Two recent meta-analyses evaluated the performance of visual examination and radiography for carious lesion detection, and reported low sensitivity but high specificity for early approximal caries detection. This suggests that the conventional methods have a higher risk of failing to detect approximal lesions. Consequently, in caries susceptible populations, there is a risk of progression of non-cavitated lesions to irreversible tooth destruction before the lesions are detected...
May 19, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28527949/microproteome-of-dentoalveolar-tissues
#3
Cristiane R Salmon, Ana Paula O Giorgetti, Adriana F Paes Leme, Romênia R Domingues, Tamara N Kolli, Brian L Foster, Francisco H Nociti
Proteomic analysis of extracellular matrices (ECM) of dentoalveolar tissues can provide insights into developmental, pathological, and reparative processes. However, targeted dissection of mineralized tissues, dental cementum (DC), alveolar bone (AB), and dentin (DE), presents technical difficulties. We demonstrate an approach combining EDTA decalcification and laser capture microdissection (LCM), followed by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS), to analyze proteome profiles of these tissues...
May 17, 2017: Bone
https://www.readbyqxmd.com/read/28527847/self-repaired-process-of-a-traumatized-maxillary-central-incisor-with-pulp-infarct-after-horizontal-root-fracture-monitored-by-laser-doppler-flowmetry-combined-with-tissue-oxygen-monitor
#4
Qian Liao, Wenjun Ye, Junli Yue, Xiaoxi Zhao, Ling Zhang, Lan Zhang, Dingming Huang, Qinghua Zheng
Achieving a precise diagnosis of the pulp status of traumatized teeth is difficult. The time to interfere through endodontic treatment for these teeth is greatly dependent on the doctor's experience. A 24-year-old male patient suffered a traumatic injury to tooth #9 that resulted in an apical root horizontal fracture 3 days before he came to the hospital. The injured tooth showed no response to pulp sensitivity testing at the first visit and was discolored 1 week later. Tooth #9 was immobilized to its adjacent teeth for 4 weeks by a composite splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28525303/low-level-laser-therapy-after-wisdom-teeth-surgery-evaluation-of-immunologic-markers-secretory-immunoglobulin-a-and-lysozyme-levels-and-thermographic-examination-placebo-controlled-study
#5
Tatjana Dostalova, Veronika Kroulikova, Stepan Podzimek, Helena Jelinková
OBJECTIVE: The goal of this investigation is to analyze the effect of therapeutic low-level laser therapy (LLLT) to have a possibility to check pain and inflammation connected with surgical removal of impacted lower third molars in general anesthesia or even phobia [not accompanied by pain or fear of dental treatment, using immunologic markers-secretory immunoglobulin A (sIgA) and lysozyme]. The healing process was also monitored by infrared thermography. BACKGROUND DATA: LLLT can accelerate the proliferation phase of healing and decrease the inflammatory reaction, but the effect is not really clear...
May 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28513894/the-dentoalveolar-prosthesis-a-novel-approach-in-the-reconstruction-of-hard-and-soft-tissue-deficiencies
#6
James K Doll, Peter Barndt, Gerald Grant
A clinical problem commonly encountered by the advanced restorative dentist is a requirement to replace missing teeth and the supporting alveolus in areas adjacent to healthy or manageable dentition. A potential solution could utilize a dentoalveolar prosthesis fabricated on two or more implants in the edentulous area. The implant substructure, or framework, may be cast, milled, or selectively laser melted from a variety of metals. A superstructure, or ceramic overlay incorporating a ceramic or composite resin gingival tissue component, is constructed to fit over the implant substructure and luted to the substructure with resin cement...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28512549/evaluation-of-the-effectiveness-of-the-photobiomodulation-in-the-treatment-of-dentin-hypersensitivity-after-basic-therapy-a-randomized-clinical-trial
#7
Cristina García-Delaney, Daniel Abad-Sánchez, Josep Arnabat-Domínguez, Eduard Valmaseda-Castellón, Cosme Gay-Escoda
BACKGROUND: Dentin hypersensitivity (DH) in one of the most common causes of patient discomfort in the general population and its prevalence is higher in patients who have received basic or surgical periodontal treatment. Efficiency of the diode laser with different wavelengths has been studied by several authors, showing an improvement rate of the DH between 60-98%. The aim of the present study was to evaluate the effect of photobiomodulation (PBM) treatment on the reduction of DH after non surgical periodontal treatment...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28509563/the-adjunctive-soft-tissue-diode-laser-in-orthodontics
#8
Ali Borzabadi-Farahani
Lasers are a relatively new addition to the orthodontist's armamentarium. This article reviews the fundamental basic science of available soft-tissue lasers, with an emphasis on diode lasers, and discusses various adjunct applications of the diode laser for soft-tissue orthodontic procedures. Diode lasers function by cutting with an initiated hot tip and produce minimal to no interaction with healthy dental hard tissue, making them suitable for soft-tissue procedures. The contact cutting mode provides enhanced bloodless site visibility and facility to perform delicate soft tissue procedures, which is important in areas with difficult access...
April 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28500856/effect-of-low-level-laser-therapy-on-tissue-repair-after-dental-extraction-in-rats-administered-zoledronic-acid-and-dexamethasone
#9
João Batista Blessmann Weber, Renata Stifelman Camilotti, Juliana Jasper, Liliane Cristina Onofre Casagrande, Fábio Luiz Dal Moro Maito
No abstract text is available yet for this article.
May 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28497661/medication-related-osteonecrosis-of-the-jaw-risk-factors-in-patients-under-biphosphonate-versus-patients-under-antiresorptive-antiangiogenic-drugs
#10
Giulia Ghidini, Maddalena Manfredi, Ilaria Giovannacci, Giovanni Mergoni, Amin Sarraj, Maura Mureddu, Giovanna Giunta, Mauro Bonanini, Marco Meleti, Paolo Vescovi
BACKGROUND: Biphosphonate-Related Osteonecrosis of the Jaw (BRONJ) is a potential side effect associated with the administration of bisphosphonates; the aim of this work is to highlight the possible epidemiological differences between two groups of patients affected by MRONJ treated at the Center of Oral Medicine, Pathology and Laser Surgery of the Academic Hospital at the University of Parma, Italy, between January 2004 and June 2016. METHODS: Medical charts of 303 patients (214 Females and 89 Males, mean age 67y) treated at the Center of Oral Medicine, Pathology and Laser Surgery of the Academic Hospital at the University of Parma, between January 2004 and June 2016, were retrospectively analyzed...
May 10, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28494610/paediatric-laser-dentistry-part-1-general-introduction
#11
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/28494609/odontomas-in-developmental-age-confocal-laser-scanning-microscopy-analysis-of-a-case
#12
M Lacarbonara, V Lacarbonara, A P Cazzolla, V Spinelli, V Crincoli, M G Lacaita, M Capogreco
BACKGROUND: Odontomas are the most common benign odontogenic tumors (especially in children and adolescents) and consist of odontogenic ectomesenchyma and odontogenic epithelium with the formation of dental hard tissues. They are also simply considered hamartomas. The WHO Classification defines them as complex and compound odontomas. The diagnosis is often occasional, in conjunction with x-ray routine examinations, or it is suggested by eruption disorders or abnormal position of teeth in the dental arch...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28484255/the-antifungal-effects-and-mechanical-properties-of-silver-bromide-cationic-polymer-nano-composite-modified-poly-methyl-methacrylate-based-dental-resin
#13
Yu Zhang, Yin-Yan Chen, Li Huang, Zhi-Guo Chai, Li-Juan Shen, Yu-Hong Xiao
Poly-methyl methacrylate (PMMA)-based dental resins with strong and long-lasting antifungal properties are critical for the prevention of denture stomatitis. This study evaluated the antifungal effects on Candida albicans ATCC90028, the cytotoxicity toward human dental pulp cells (HDPCs), and the mechanical properties of a silver bromide/cationic polymer nano-composite (AgBr/NPVP)-modified PMMA-based dental resin. AgBr/NPVP was added to the PMMA resin at 0.1, 0.2, and 0.3 wt%, and PMMA resin without AgBr/NPVP served as the control...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28482440/-study-on-the-appropriate-parameters-of-automatic-full-crown-tooth-preparation-for-dental-tooth-preparation-robot
#14
F S Yuan, Y Wang, Y P Zhang, Y C Sun, D X Wang, P J Lyu
Objective: To further study the most suitable parameters for automatic full crown preparation using oral clinical micro robot. Its purpose is to improve the quality of automated tooth preparing for the system and to lay the foundation for clinical application. Methods: Twenty selected artificial resin teeth were used as sample teeth. The micro robot automatic tooth preparation system was used in dental clinic to control the picosecond laser beam to complete two dimensional cutting on the resin tooth sample according to the motion planning path...
May 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28479654/automated-ablation-of-dental-composite-using-an-ir-pulsed-laser-coupled-to-a-plume-emission-spectral-feedback-system
#15
Andrew T Jang, Kenneth H Chan, Daniel Fried
Dental composites are used as restorative materials for filling cavities, shaping, and covering teeth for esthetic purposes, and as adhesives. Dentists spend more time replacing existing restorations that fail than they do placing new restorations. Tooth colored restorations are difficult to differentiate from the surrounding tooth structure making them challenging to remove without damaging healthy tooth structure. Previous studies have demonstrated that CO2 lasers in conjunction with spectral feedback can be used to selectively remove composite from tooth surfaces...
January 28, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28470893/gene-expression-in-peri-implant-crevicular-fluid-of-smokers-and-nonsmokers-1-the-early-phase-of-osseointegration
#16
Shariel Sayardoust, Omar Omar, Peter Thomsen
BACKGROUND: Smoking is a risk factor for dental implants. The mechanisms behind the impact of smoking on osseointegration are not fully understood. PURPOSE: To investigate the initial molecular and clinical course of osseointegration of different titanium implants in smokers and nonsmokers. MATERIALS AND METHODS: Smoker (n = 16) and nonsmoker (n = 16) patients were included. Each patient received three implant types: machined, oxidized and laser-modified surfaces...
May 3, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28467687/automated-ablation-of-dental-composite-using-an-ir-pulsed-laser-coupled-to-a-plume-emission-spectral-feedback-system
#17
Andrew T Jang, Kenneth H Chan, Daniel Fried
OBJECTIVE: The purpose of this study is to assemble a laser system for the selective removal of dental composite from tooth surfaces, that is feasible for clinical use incorporating a spectral feedback system, a scanning system, articulating arm and a clinical hand-piece, and evaluate the performance of that system on extracted teeth. METHODS: Ten extracted teeth were collected and small fillings were placed on the occlusal surface of each tooth. A clinical system featuring a CO2 laser operating at 50 Hz and spectral optical feedback was used to remove the composite...
May 3, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28462406/effectiveness-of-radio-waves-application-in-modern-general-dental-procedures-an-update
#18
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
#19
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/28437191/analysis-of-human-tooth-pulp-chamber-temperature-after-670%C3%A2-nm-laser-irradiation-in-vitro-study
#20
Cleide Regina Alves Carrara de Oliveira, Fátima Zanin, Alessandra Cassoni, José Augusto Rodrigues, Landulfo Silveira, Marcos Tadeu Pacheco, Aldo Brugnera
OBJECTIVE: One of the limiting factors of employing laser radiation on dental therapies is the potential of causing thermal injuries to pulp tissues. The purpose of this study was to evaluate intra-chamber temperature increase on extracted human teeth exposed to 670 nm wavelength InGaAlP laser diode radiation. MATERIALS AND METHODS: In vitro intra-chamber temperature measurements of 12 standardized human teeth (incisors, canines, premolars, and molars; n = 3) were taken both before and after laser radiation...
February 16, 2017: Photomedicine and Laser Surgery
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