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https://www.readbyqxmd.com/read/29031237/novel-methodology-for-determining-the-effect-of-adsorbates-on-human-enamel-acid-dissolution
#1
N Pechlivani, D A Devine, P D Marsh, A Mighell, S J Brookes
OBJECTIVE: The effect of various interventions on enamel demineralisation can be determined by chemically measuring mineral ions dissolved by the attacking acid. Results are usually expressed as mineral loss per surface area of enamel exposed. Acid resistant varnish or adhesive tape are typically used to delineate an area of enamel. However, enamel surface curvature, rugosity and porosity reduce the reliability of simple area measurements made at the macro scale. Our aim was to develop a simple method for investigating the effect of adsorbates on enamel demineralisation that does not rely on knowing the area of enamel exposed...
October 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29031235/homeobox-genes-and-tooth-development-understanding-the-biological-pathways-and-applications-in-regenerative-dental-science
#2
REVIEW
Anand Ramanathan, Thekkeparambil Chandrabose Srijaya, Prema Sukumaran, Rosnah Binti Zain, Noor Hayaty Abu Kasim
OBJECTIVES: Homeobox genes are a group of conserved class of transcription factors that function as key regulators during the embryonic developmental processes. They act as master regulator for developmental genes, which involves coordinated actions of various auto and cross-regulatory mechanisms. In this review, we summarize the expression pattern of homeobox genes in relation to the tooth development and various signaling pathways or molecules contributing to the specific actions of these genes in the regulation of odontogenesis...
October 4, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29029362/altered-tdp-43-dependent-splicing-in-hspb8-related-distal-hereditary-motor-neuropathy-and-myofibrillar-myopathy
#3
Andrea Cortese, Matilde Laurà, Carlo Casali, Ichizo Nishino, Yukiko K Hayashi, Stefania Magri, Franco Taroni, Cristiana Stuani, Paola Saveri, Maurizio Moggio, Michela Ripolone, A Prelle, C Pisciotta, A Sagnelli, Anna Pichiecchio, Mary M Reilly, Emanuele Buratti, Davide Pareyson
INTRODUCTION: Mutations in the small heat shock protein 22 gene (HSPB8) have been associated with Charcot-Marie-Tooth type 2L, distal hereditary motor neuropathy (dHMN) type IIa and, more recently, distal myopathy/myofibrillar myopathy (MFM) with protein aggregates and TDP-43 inclusions. OBJECTIVE: To report a novel family with HSPB8 (K141E) -related dHMN/MFM and to investigate, in a patient muscle biopsy, whether the presence of protein aggregates was paralleled by altered TDP-43 function...
October 13, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29027917/porcine-dental-epithelial-cells-differentiated-in-a-cell-sheet-constructed-by-magnetic-nanotechnology
#4
Wataru Koto, Yoshinori Shinohara, Kazuyuki Kitamura, Takanori Wachi, Seicho Makihira, Kiyoshi Koyano
Magnetic nanoparticles (MNPs) are widely used in medical examinations, treatments, and basic research, including magnetic resonance imaging, drug delivery systems, and tissue engineering. In this study, MNPs with magnetic force were applied to tissue engineering for dental enamel regeneration. The internalization of MNPs into the odontogenic cells was observed by transmission electron microscopy. A combined cell sheet consisting of dental epithelial cells (DECs) and dental mesenchymal cells (DMCs) (CC sheet) was constructed using magnetic force-based tissue engineering technology...
October 13, 2017: Nanomaterials
https://www.readbyqxmd.com/read/29027879/emerging-ethical-issues-in-restorative-dentistry
#5
John W Nicholson
This article reviews some of the merging ethical issues in restorative dentistry. This is a branch of healthcare concerned with quality of life, since retention of functioning teeth is important in allowing a healthy diet to be consumed. Yet the supply of dentists is such that, in many of the world's poorest countries, extraction is the only viable option for treating tooth decay. Available repair materials present various ethical problems. Silver amalgam is being phased out in much of the world, because of environmental concerns with mercury, yet it is cheap and reliable...
October 13, 2017: New Bioethics: a Multidisciplinary Journal of Biotechnology and the Body
https://www.readbyqxmd.com/read/29027749/permanent-tooth-agenesis-in-individuals-with-non-syndromic-robin-sequence-a-systematic-review-and-meta-analysis
#6
G S Antonarakis, P K Palaska, S Suri
OBJECTIVES: To evaluate prevalence rates and patterns of permanent tooth agenesis in individuals with non-syndromic Robin sequence (ns-RS). MATERIAL AND METHODS: Two investigators independently carried out a literature search, using PubMed, Web of Science, Ovid, EMBASE and the Cochrane Library, identifying articles relating to permanent tooth agenesis, diagnosed using panoramic radiographs, in individuals with ns-RS. The outcomes desired were prevalence rates and patterns of permanent tooth agenesis...
October 13, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/29027327/laparoscopic-ventral-hernia-repair-using-only-5-mm-ports
#7
Nicholas Bell-Allen, Harriet O'Rourke, Lisa Hong, Nicholas O'Rourke
BACKGROUND: The technique of laparoscopic ventral hernia repair has been evolving since it was first described over 20 years ago. We report a new technique where polyester mesh was back loaded through a 5-mm port site, coming into contact with the skin. This avoids the need for any 10-12-mm ports. METHODS: A prospective database of laparoscopic ventral hernia repairs was examined. A single surgeon performed 344 laparoscopic ventral hernia repairs using this technique over 60 months...
October 12, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29027002/camel-molar-tooth-enamel-response-to-gamma-rays-using-epr-spectroscopy
#8
N A El-Faramawy, I El-Somany, A Mansour, A M Maghraby, H Eissa, A Wieser
Tooth enamel samples from molar teeth of camel were prepared using a combined procedure of mechanical and chemical tooth treatment. Based on electron paramagnetic resonance (EPR) spectroscopy, the dose response of tooth enamel samples was examined and compared to that of human enamel. The EPR dose response of the tooth enamel samples was obtained through irradiation to gamma doses from 1 Gy up to 100 kGy. It was found that the radiation-induced EPR signal increased linearly with gamma dose for all studied tooth enamel samples, up to about 15 kGy...
October 12, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/29026758/impact-of-school-health-education-program-on-personal-hygiene-among-school-children-of-lucknow-district
#9
Ruby Khatoon, Beena Sachan, Mohsin Ali Khan, J P Srivastava
BACKGROUND: Personal hygiene plays a major role to promote healthy life. This study was performed to assess the current level of knowledge and practicing behavior in regard to hand washing, bathing, tooth brushing, and taking care of nail and hair. MATERIALS AND METHODS: A cross-sectional descriptive study was conducted on 800 students of Lucknow district. All the students were interviewed with a structured questionnaire (pretest). A visual display of good and bad personal hygiene was shown on projector and explained the benefits of good personal hygiene behavior...
January 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29026699/comparison-of-the-clinical-biological-width-with-the-published-standard-histologic-mean-values
#10
Fatme Mouchref Hamasni, Fady El Hajj
AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental crowns and the marginal periodontal tissues analyzed in many review papers concluded that the recognition of the BW, in terms of crown margin placement, is beneficial for periodontal health. Therefore, knowledge of the dimensions of the sum of the junctional epithelium and connective tissue attachment as well as the sulcus depth (SD) is of clinical relevance...
September 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29025118/cohort-profile-the-australian-longitudinal-study-on-women-s-health-alswh-1989-95-cohort
#11
Deborah Loxton, Leigh Tooth, Melissa L Harris, Peta M Forder, Annette Dobson, Jennifer Powers, Wendy Brown, Julie Byles, Gita Mishra
No abstract text is available yet for this article.
August 7, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29024833/health-of-vlbw-infants-in-germany-at-five-years-of-age-what-do-parents-describe
#12
Juliane Spiegler, Guido Stichtenoth, Inke R König, Egbert Herting, Wolfgang Göpel
BACKGROUND: There are only few data on medical problems and utilization of health services of former very low birth weight (VLBW) children at preschool age. STUDY DESIGN: At five years of age parents of a cohort of VLBW children (N=862) received questionnaires, a medical interview and examination. The results were compared to the KIGGS cohort (Deutscher-Kinder-und Jugendgesundheitssurvey, N=777). RESULTS: Parents of the VLBW and KIGGS cohort reported a very good or good health in 95% in their children...
October 9, 2017: Early Human Development
https://www.readbyqxmd.com/read/29023779/a-new-system-for-classifying-tooth-root-and-canal-anomaly
#13
REVIEW
H M A Ahmed, P M H Dummer
Understanding the normal anatomical features as well as the more unusual developmental anomalies of teeth, roots and root canals is essential for successful root canal treatment. In addition to various types of root canal configuration and accessory canal morphology, a wide range of developmental tooth, root and canal anomalies exist, including C-shaped canals, dens invaginatus, taurodontism, root fusion, dilacerations, palato-gingival grooves. There is a direct association between developmental anomalies and pulp and periradicular diseases that usually requires a multidisciplinary treatment approach to achieve a successful outcome...
October 12, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/29023745/prevention-of-tooth-loss-and-dental-pain-for-reducing-the-global-burden-of-oral-diseases
#14
Susan Hyde, Veronique Dupuis, Boipelo P Mariri, Sophie Dartevelle
Population ageing is a global phenomenon and is predicted to become one of the most significant social transformations of the 21st century. The anticipated demographic shift provides governments the opportunity to proactively align policies with the estimated demands for housing, transportation, social protection, and health and well-being. Oral health is a fundamental component of health and physical and mental well-being, and is influenced by the individual's changing experience, perceptions, expectations and ability to adapt to circumstances...
September 2017: International Dental Journal
https://www.readbyqxmd.com/read/29023743/oral-health-for-an-ageing-population-the-importance-of-a-natural-dentition-in-older-adults
#15
Frauke Müller, Yoshihiro Shimazaki, Febronia Kahabuka, Martin Schimmel
Despite progress in dentistry, tooth loss in old age is still a reality, even more so in long-term-care residents. However, recent trends indicate that natural teeth are lost later in life. Functional decline and age-related pathologies have to be considered in oral health care for this vulnerable population. Retaining and restoring teeth and oral function in elders is important. Tooth loss significantly impairs masticatory performance, which cannot be fully restored by prosthodontic means. Hence an unconscious change in food intake occurs, often involving malnutrition and withdrawal from common meals...
September 2017: International Dental Journal
https://www.readbyqxmd.com/read/29023695/the-biorhythm-of-human-skeletal-growth
#16
Patrick Mahoney, Justyna J Miszkiewicz, Simon Chapple, Mona Le Luyer, Stephen H Schlecht, Tahlia J Stewart, Richard A Griffiths, Chris Deter, Debbie Guatelli-Steinberg
Evidence of a periodic biorhythm is retained in tooth enamel in the form of Retzius lines. The periodicity of Retzius lines (RP) correlates with body mass and the scheduling of life history events when compared between some mammalian species. The correlation has led to the development of the inter-specific Havers-Halberg oscillation (HHO) hypothesis, which holds great potential for studying aspects of a fossil species biology from teeth. Yet, our understanding of if, or how, the HHO relates to human skeletal growth is limited...
October 10, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29023624/two-year-clinical-evaluation-of-pedicled-buccal-fat-pad-alone-and-with-emdogain-for-root-coverage-of-severe-gingival-recession-defects-a-case-series
#17
Sally Abd-ElMeniem El-Haddad, Mohammad Abd-ElHakeem El-Shall
Gingival recession is defined as an apical displacement of the gingival margin beyond the cementoenamel junction leading to serious consequences, including exposure of the root surface, loss of periodontal attachment, root sensitivity to hot and cold air, and esthetic problems. The aim of this study was to evaluate the long-term effect of pedicled buccal fat pad (PBFP) alone and with Emdogain in covering severe gingival recession defects and restoring tooth function. A total of 10 severe buccal recession defects in maxillary first molars were selected to be treated with PBFP, with Emdogain (group I; n = 5) or alone (group II; n = 5)...
2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29023623/vertical-guided-bone-regeneration-for-a-single-missing-tooth-span-with-titanium-reinforced-d-ptfe-membranes-clinical-considerations-and-observations-of-10-consecutive-cases-with-up-to-36-months-follow-up
#18
Ran Herzberg
Vertical guided bone regeneration (GBR) using titanium-reinforced polytetrafluoroethylene (PTFE) membranes is a well-established technique and is considered technique sensitive. When using PTFE membranes, complications usually arise in the crestal incision or next to the neighboring tooth of the treated span. Most studies available describe either distal free end or multiple missing teeth span situations. Treating a single missing tooth span combines the challenge of two neighboring teeth and a smaller flap, which is more difficult to adapt to the augmented environment...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29023615/the-lip-tooth-ridge-classification-a-guidepost-for-edentulous-maxillary-arches-diagnosis-risk-assessment-and-implant-treatment-indications
#19
Adrien Pollini, Jack Goldberg, Ricardo Mitrani, Dean Morton
Prosthetic rehabilitation of the edentulous maxilla is known to be challenging and requires meticulous planning. The purpose of this article is to describe a novel classification system, the Lip-Tooth-Ridge (LTR), that offers a guidepost for treatment planning the edentulous maxilla for fixed or removable prostheses. This tool will help clinicians identify the final prosthetic design and will provide a case-specific risk assessment guide regarding two different areas. A high (HER) or low (LER) esthetic risk will be determined based on lip dynamics, as well as a high or low structural risk according to the prosthetic space availability...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29023614/virtual-simulation-of-periodontal-surgery-including-presurgical-cad-cam-fabrication-of-tooth-colored-removable-splints-on-the-basis-of-cbct-data-a-case-report
#20
Jan-Frederik Güth, Ana Elisa Colle Kauling, Josef Schweiger, Jan Kühnisch, Michael Stimmelmayr
Innovative digital diagnostic, design, and manufacturing technologies combined with high-performance polymers offer new possibilities to facilitate complex interdisciplinary treatment procedures. This article reports on the interaction of different digital technologies, from presurgical digital simulation of periodontal surgery to final prosthodontic rehabilitation, in a case of amelogenesis imperfecta in a 17-year-old girl. The aim was to digitally determine the treatment outcome by three-dimensional simulation of the soft tissue removal and to create computer-aided design/computer-assisted manufacture tooth-colored splints before the clinical treatment...
November 2017: International Journal of Periodontics & Restorative Dentistry
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