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https://www.readbyqxmd.com/read/28653761/a-prospective-clinical-study-of-regenerative-endodontic-treatment-of-traumatised-immature-teeth-with-necrotic-pulps-using-bi-antibiotic-paste
#1
H Nazzal, K Kenny, A Altimimi, J Kang, M S Duggal
AIM: To evaluate the treatment outcomes of a revitalisation endodontic technique (RET) for the management of traumatised immature teeth with necrotic pulps in children. METHODOLOGY: Fifteen healthy children (age range=7-10 years) with traumatised immature maxillary incisors with necrotic pulps treated with bi-antibiotic revitalisation endodontic techniques were prospectively assessed over approximately two years (mean=22 months). One operator undertook all treatments, clinical reviews and standardised radiographic exposures with radiographic analysis being carried out by two calibrated experienced clinicians...
June 27, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28653139/spreading-proliferation-and-differentiation-of-human-dental-pulp-stem-cells-on-chitosan-scaffolds-immobilized-with-rgd-or-fibronectin
#2
Farzin Asghari Sana, Merve Çapkın Yurtsever, Gökçe Kaynak Bayrak, Ekin Özge Tunçay, Arlin S Kiremitçi, Menemşe Gümüşderelioğlu
Nowadays, human dental pulp stem cells (hDPSCs) became more attractive for therapeutic purposes because of their high proliferation and differentiation potential. Thus, coupling the desired cellular characteristics of hDPSCs with good biomaterial properties of the chitosan scaffolds provide an interesting approach for tissue engineering applications. On the other hand, scaffold surface modification is also needed to promote stem cell adhesion since chitosan lacks adhesion motifs to support direct cell anchorage...
June 26, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28651921/ultrasound-enhances-dentoalveolar-remodeling-in-an-ex%C3%A2-vivo-orthodontic-ovariectomy-induced-osteoporotic-model
#3
Khuloud S Alhazmi, Tarek El-Bialy, Ahmed R Afify, Leena A Merdad, Ali H Hassan
The aim of the study was to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on dentoalveolar structures during application of force to a cultured mandible slice taken from an ovariectomized rat model of osteoporosis. Rats were divided based on whether they had ovariectomy and/or LIPUS application into four groups: control osteoporosis group, control normal group, ultrasound-treated osteoporosis group and ultrasound-treated normal group. The mandibles were dissected, sliced and cultured before application of a 0...
June 23, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28651482/modulation-of-some-markers-of-erectile-dysfunction-and-malonaldehyde-levels-in-isolated-rat-penile-tissue-with-unripe-and-ripe-plantain-peels-identification-of-the-constituents-of-the-plants-using-hplc
#4
Ganiyu Oboh, Adedayo Oluwaseun Ademiluyi, Sunday Idowu Oyeleye, Tosin Abiola Olasehinde, Aline Augusti Boligon
CONTEXT: Plantain fruit pulp has been used as a natural remedy to manage erectile dysfunction (ED) in traditional medicine. However, the potency of the peel has not been examined with respect to ED management. OBJECTIVE: This study investigated and compared the inhibitory potential of unripe (UPP) and ripe (RPP) plantain peels on some enzymes associated with ED and Fe(2+)-induced oxidative stress in albino rat penile homogenate in vitro. MATERIALS AND METHOD: Aqueous extract of the peels was prepared and the effect on phosphodiesterase-5 (PDE-5), arginase, acetylcholinesterase (AChE), angiotensin-I converting enzyme (ACE) and Fe(2+)-induced malonyladehyde in isolated albino rat penile homogenate were investigated...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28651135/a-model-biorefinery-for-avocado-persea-americana-mill-processing
#5
Javier A Dávila, Moshe Rosenberg, Eulogio Castro, Carlos A Cardona
This research investigated and evaluated a biorefinery for processing avocado Hass variety into microencapsulated phenolic compounds extract, ethanol, oil and xylitol. Avocado was first characterized for its potential valuable compounds; then, the techno-economic and environmental aspects of the biorefinery were developed and finally the total production costs and potential environmental impact of the proposed biorefinery were investigated. Four scenarios of the biorefinery were evaluated with different extent of mass and energy integration as well as the incorporation of a cogeneration system...
June 15, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651133/material-flow-and-sustainability-analyses-of-biorefining-of-municipal-solid-waste
#6
Jhuma Sadhukhan, Elias Martinez-Hernandez
This paper presents material flow and sustainability analyses of novel mechanical biological chemical treatment system for complete valorization of municipal solid waste (MSW). It integrates material recovery facility (MRF); pulping, chemical conversion; effluent treatment plant (ETP), anaerobic digestion (AD); and combined heat and power (CHP) systems producing end products: recyclables (24.9% by mass of MSW), metals (2.7%), fibre (1.5%); levulinic acid (7.4%); recyclable water (14.7%), fertiliser (8.3%); and electricity (0...
June 17, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28649865/dental-stem-cells-recent-progresses-in-tissue-engineering-and-regenerative-medicine
#7
João Botelho, Maria Alzira Cavacas, Vanessa Machado, José João Mendes
Since the disclosure of adult mesenchymal stem cells (MSCs) there have been an intense investigation on the characteristics of these cells and their potentialities. Dental Stem Cells (DSCs) are MSC-like populations with self-renewal capacity and multidifferentiation potential. Currently, there are five main DSCs, dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), stem cells from apical papilla (SCAP), periodontal ligament stem cells (PDLSCs), and Dental Follicle Precursor Cells (DFPCs)...
June 24, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28649791/bioactivity-and-biomineralization-ability-of-calcium-silicate-based-pulp-capping-materials-after-subcutaneous-implantation
#8
G Hinata, K Yoshiba, L Han, N Edanami, N Yoshiba, T Okiji
AIM: To evaluate the abilities of three calcium silicate-based pulp-capping materials (ProRoot MTA, TheraCal LC, and a prototype tricalcium silicate cement) to produce apatite-like precipitates after being subcutaneously implanted into rats. METHODOLOGY: Polytetrafluoroethylene tubes containing each material were subcutaneously implanted into the backs of Wistar rats. At 7, 14, and 28 days post-implantation, the implants were removed together with the surrounding connective tissue, and fixed in 2...
June 26, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28649171/injectable-scaffolds-preparation-and-application-in-dental-and-craniofacial-regeneration
#9
Bei Chang, Neelam Ahuja, Chi Ma, Xiaohua Liu
Injectable scaffolds are appealing for tissue regeneration because they offer many advantages over pre-formed scaffolds. This article provides a comprehensive review of the injectable scaffolds currently being investigated for dental and craniofacial tissue regeneration. First, we provide an overview of injectable scaffolding materials, including natural, synthetic, and composite biomaterials. Next, we discuss a variety of characteristic parameters and gelation mechanisms of the injectable scaffolds. The advanced injectable scaffolding systems developed in recent years are then illustrated...
January 2017: Materials Science & Engineering. R, Reports: a Review Journal
https://www.readbyqxmd.com/read/28647647/itraq-based-quantitative-analysis-of-alveolar-bone-resorption-in-rats-with-experimental-periodontitis
#10
Weidong Yang, Yafan Gao, Yajie Qian, Jingjing Li, Qingang Hu
OBJECTIVE: Periapical periodontitis results in alveolar bone resorption around the root apex. During the progression of inflammation, host cells release various inflammatory mediators and pro-inflammatory cytokines through immune responses. However, the pathological mechanisms associated with periapical bone destruction remain unclear. This study was objected to identify differentially regulated proteins in periapical periodontitis via a quantitative proteomics approach using isobaric tags for relative and absolute quantification (iTRAQ) labelling of peptides...
June 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28647609/a-machine-learning-approach-for-automated-wide-range-frequency-tagging-analysis-in-embedded-neuromonitoring-systems
#11
Fabio Montagna, Marco Buiatti, Simone Benatti, Davide Rossi, Elisabetta Farella, Luca Benini
EEG is a standard non-invasive technique used in neural disease diagnostics and neurosciences. Frequency-tagging is an increasingly popular experimental paradigm that efficiently tests brain function by measuring EEG responses to periodic stimulation. Recently, frequency-tagging paradigms have proven successful with low stimulation frequencies (0.5 - 6 Hz), but the EEG signal is intrinsically noisy in this frequency range, requiring heavy signal processing and significant human intervention for response estimation...
June 21, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28645637/antimicrobial-and-biological-activity-of-leachate-from-light-curable-pulp-capping-materials
#12
Maria Teresa Arias-Moliz, Cher Farrugia, Christie Y K Lung, Pierre Schembri Wismayer, Josette Camilleri
OBJECTIVES: Characterization of a number of pulp capping materials and assessment of the leachate for elemental composition, antimicrobial activity and cell proliferation and expression. METHODOLOGY: Three experimental light curable pulp-capping materials, Theracal and Biodentine were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. The elemental composition of the leachate formed after 24hours was assessed by inductively coupled plasma (ICP)...
June 20, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28645174/adrenomedullin-promotes-the-odontogenic-differentiation-of-dental-pulp-stem-cells-through-creb-bmp2-signaling-pathway
#13
Qiang Zhu, Jianyong Gao, Gang Tian, Zhen Tang, Yinghui Tan
No abstract text is available yet for this article.
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645095/tooth-coronal-index-and-pulp-tooth-ratio-in-dental-age-estimation-on-digital-panoramic-radiographs-a-comparative-study
#14
Supreet Jain, Ravleen Nagi, Minal Daga, Ashutosh Shandilya, Aastha Shukla, Abhinav Parakh, Afshan Laheji, Rahul Singh
BACKGROUND: Assessment of an age of an individual whether living or dead through teeth is one of the most reliable and simple method to calculate age than skeletal remains especially when they are in poor conditions. OBJECTIVES: The study was carried out with aim of (i) to evaluate reliability of dental age assessment through two different methods for adults i.e. tooth coronal index and pulp/tooth ratio using digital panoramic radiographs and (ii) to compare these methods for their accuracy in age determination...
May 12, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28643909/the-fate-of-osterix-expressing-mesenchymal-cells-in-dental-root-formation-and-maintenance
#15
A Takahashi, N Ono, W Ono
OBJECTIVES: Osterix (Osx)-expressing mesenchymal cells are progenitors for tooth root forming cells. The aim of this study was to reveal the fates of Osx-expressing cells during and after root formation using a lineage tracing experiment. MATERIAL AND METHODS: To reveal the fates of Osx-expressing dental mesenchymal progenitors, we took advantage of tamoxifen-inducible Cre reporter system. Osx-creER; R26R-tdTomato mice received tamoxifen (0.1 mg/body) at postnatal day 3 (P3)...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643401/novel-navigation-technique-for-the-endodontic-treatment-of-a-molar-with-pulp-canal-calcification-and-apical-pathology
#16
Xilin Shi, Shiyong Zhao, Weidong Wang, Qianzhou Jiang, Xuechao Yang
Apical periodontitis, the inflammation of periapical tissue, commonly requires root canal treatment to achieve apical healing. However, if it is accompanied by pulp canal calcification, the treatment becomes complicated, and locating the root canal can be challenging. This case report describes a novel approach for treating a molar with pulp canal calcification and apical pathology. Due to the risk of perforation during treatment, a digitally printed template was used to assist in accurately locating the root canal...
June 23, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28642914/antimicrobial-properties-and-dental-pulp-stem-cell-cytotoxicity-using-carboxymethyl-cellulose-silver-nanoparticles-deposited-on-titanium-plates
#17
Martha Alicia Laredo-Naranjo, Roberto Carrillo-Gonzalez, Myriam Angelica De La Garza-Ramos, Marco Antonio Garza-Navarro, Hilda H H Torre-Martinez, Casiano Del Angel-Mosqueda, Roberto Mercado-Hernandez, Roberto Carrillo-Fuentevilla
Objective: To evaluate the antimicrobial properties and dental pulp stem cells (DPSCs) cytotoxicity of synthesized carboxymethyl cellulose-silver nanoparticles impregnated on titanium plates. Material and methods: The antibacterial effect of silver nanoparticles in a carboxymethyl cellulose matrix impregnated on titanium plates (Ti-AgNPs) in three concentrations: 16%, 50% and 100% was determined by adding these to bacterial cultures of Streptococcus mutans and Porphyromonas gingivalis. The Ti-AgNPs cytotoxicity on DPSCs was determined using a fluorimetric cytotoxicity assay with 0...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28640482/organogelator-cellulose-composite-for-practical-and-eco-friendly-marine-oil-spill-recovery
#18
Kana M Sureshan, Annamalai Prathap
Marine oil-spills pose serious threats to the ecosystem and economy. There is much interest in developing sorbents that can tackle such spills. We have developed a novel sorbent by impregnating cellulose pulp with a sugar-derived oleogelator, 1,2:5,6-di-O-cyclohexylidene-mannitol. The gelator molecules mask the surface-exposed hydroxyl groups of cellulose fibrils by engaging them in H-bonding and expose their hydrophobic parts making the fibers temporarily hydrophobic (water contact-angle 110°). This sorbent absorbs oil effectively, selectively and instantly from oil-water mixtures due to its hydrophobicity...
June 22, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28638549/antibacterial-activity-of-different-root-canal-sealers-against-enterococcus-faecalis
#19
Claudio Poggio, Federico Trovati, Matteo Ceci, Marco Colombo, Giampiero Pietrocola
BACKGROUND: The aim of the present study was to compare in vitro the antimicrobial activity of different root canal sealers against Enterococcus faecalis, prior and subsequent to setting. MATERIAL AND METHODS: Agar diffusion test (ADT) was used for evaluating the antibacterial activity of non-set sealer while the direct contact test (DCT) was used for after setting. RESULTS: ADT: Except for TotalFill BC Sealer all the others sealers tested showed antibacterial activity...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28638345/heterogeneity-and-developmental-connections-between-cell-types-inhabiting-teeth
#20
REVIEW
Jan Krivanek, Igor Adameyko, Kaj Fried
Every tissue is composed of multiple cell types that are developmentally, evolutionary and functionally integrated into the unit we call an organ. Teeth, our organs for biting and mastication, are complex and made of many different cell types connected or disconnected in terms of their ontogeny. In general, epithelial and mesenchymal compartments represent the major framework of tooth formation. Thus, they give rise to the two most important matrix-producing populations: ameloblasts generating enamel and odontoblasts producing dentin...
2017: Frontiers in Physiology
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