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https://www.readbyqxmd.com/read/28110070/mesoscale-porosity-at-the-dentin-enamel-junction-could-affect-the-biomechanical-properties-of-teeth
#1
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 350 μm 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 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28094563/dental-arch-relationships-and-reverse-headgear-effects-in-southern-chinese-patients-with-unilateral-cleft-lip-and-palate-a-retrospective-study
#2
Yang Rafidah Hassan, Kwan Lok Tse, Balvinder Singh Khambay, Wing Kit Wong, Min Gu, Yanqi Yang
OBJECTIVE:   To evaluate the severity of the dental arch relationships and the treatment outcomes of reverse headgear (RHG) in southern Chinese patients with unilateral cleft lip and palate (UCLP). DESIGN:   A retrospective study. SETTING:   Faculty of Dentistry, The University of Hong Kong. PATIENTS:   Thirty-eight UCLP patients with complete records. Among them, 14 were later treated with RHG (RHG group) and 24 were under review (non-RHG group) before definitive orthodontic or in conjunction with orthognathic surgery...
January 17, 2017: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/28094051/competition-policy-for-health-care-provision-in-portugal
#3
Pedro Pita Barros
We review the role of competition among healthcare providers in Portugal, which has a public National Health Service (NHS) at the core of the health system. There is little competition among healthcare providers within the NHS. Competition among NHS primary care providers is hindered by excess demand (many residents in Portugal do not have a designated family doctor). Competition among NHS hospitals has been traditionally limited to cases of maximum guaranteed waiting time for surgery being exceeded. The Portuguese Competition Authority enforces competition law...
December 23, 2016: Health Policy
https://www.readbyqxmd.com/read/28056729/editorial-molecular-cellular-and-pharmaceutical-as-dentistry-and-oral-and-maxillofacial-surgery-translational-research-and-transdisciplinarity
#4
David M Dohan Ehrenfest, Lidia M Wisniewska, Agata Cieslik-Bielecka, Hom-Lay Wang, Manuel Fernándes-Cruz
No abstract text is available yet for this article.
January 4, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28056602/the-potential-of-stromal-cell-derived-factor-1-delivery-using-a-collagen-membrane-for-bone-regeneration
#5
Tadahiro Takayama, Jisen Dai, Keita Tachi, Ryutaro Shohara, Hironori Kasai, Kentaro Imamura, Seiichi Yamano
Stromal cell-derived factor-1 (SDF-1) is a cytokine that is important in stem and progenitor cell recruitment in tissue repair after injury. Regenerative procedures using collagen membranes (CMs) are presently well established in periodontal and implant dentistry. The objective of this study is to test the subsequent effects of the released SDF-1 from a CM on bone regeneration compared to platelet-derived growth factor (PDGF) in vitro and in vivo. For in vitro studies, cell proliferation, alkaline phosphatase activity, and osteoblastic differentiation marker genes were assessed after MC3T3-E1 mouse preosteoblasts were cultured with CMs containing factors...
January 1, 2017: Journal of Biomaterials Applications
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/28000280/modern-implant-dentistry-based-on-osseointegration-50%C3%A2-years-of-progress-current-trends-and-open-questions
#7
REVIEW
Daniel Buser, Lars Sennerby, Hugo De Bruyn
In the 1960s and 1970s, implant-supported prostheses based on subperiosteal or blade implants had a poor reputation because of questionable clinical outcomes and lack of scientific documentation. The change to a scientifically sound discipline was initiated by the two scientific pioneers of modern implant dentistry, Professor P. I. Brånemark from the University of Gothenburg in Sweden and Professor André Schroeder from the University of Bern in Switzerland. Together with their teams, and independently of each other, they laid the foundation for the most significant development and paradigm shift in dental medicine...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28000268/implants-for-elderly-patients
#8
REVIEW
Martin Schimmel, Frauke Müller, Valérie Suter, Daniel Buser
In the developed world, the large birth cohorts of the so-called baby boomer generation have arrived in medical and dental practices. Often, elderly patients are 'young-old' baby boomers in whom partial edentulism is the predominant indication for implant therapy. However, the generation 85+ years of age represents a new challenge for the dental profession, as their lives are frequently dominated by dependency, multimorbidity and frailty. In geriatric implant dentistry, treatment planning is highly individualized, as interindividual differences become more pronounced with age...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/27982194/histologic-and-tomographic-findings-of-bone-block-allografts-in-a-4-years-follow-up-a-case-series
#9
Daniel Deluiz, Luciano Santos Oliveira, Paul Fletcher, Fábio Ramôa Pires, Justine Monnerat Tinoco, Eduardo Muniz Barretto Tinoco
The aim of this paper is to report histologic and tomographic findings of fresh frozen bone block allografts bearing dental implants in functional occlusion in a long-term follow-up. Four patients with implants functionally loaded for 4 years on augmented ridges requiring additional mucogingival surgery or implant placement were included in this case series. Cone-beam tomography scans were compared volumetrically between the baseline (first implant placement) and current images. Biopsies of the grafts were retrieved and sent to histological analysis...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27980324/short-implants-had-lower-survival-rates-in-posterior-jaws-compared-to-standard-implants
#10
Gary L Stafford
Data sourcesPubMed/Medline, Embase and Cochrane Library databases supplemented by searches of the journals; Clinical Implant Dentistry and Related Research, Clinical Oral Implants Research, International Journal of Oral and Maxillofacial Implants, International Journal of Oral and Maxillofacial Surgery, Journal of Clinical Periodontology, Journal of Dentistry, Journal of Oral and Maxillofacial Surgery, Journal of Oral Implantology, Journal of Oral Rehabilitation, Journal of Periodontology, Periodontology 2000...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27978808/molecular-cellular-and-pharmaceutical-aspects-of-biomaterials-in-dentistry-and-oral-and-maxillofacial-surgery-an-internationalization-of-higher-education-and-research-perspective
#11
Lidia M Wisniewska, David M Dohan Ehrenfest, Pablo Galindo-Moreno, Jesús Domingo Segovia, Francesco Inchingolo, Hom-Lay Wang, Manuel Fernándes-Cruz
In dentistry and oral and maxillofacial surgery, the development of implantable biomaterials and the understanding of their molecular, cellular and pharmaceutical aspects are currently major fields of research and education, with a considerable impact on the daily clinical practice and the evolution of therapeutic strategies. In the era of globalized economy of knowledge and science, this scientific domain needs the development of global cooperation and a paradigm evolution in the organizational culture of the dental sciences and related dental industry...
December 13, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27975042/predictive-values-derived-from-lower-wisdom-teeth-developmental-stages-on-orthopantomograms-to-calculate-the-chronological-age-in-adolescence-and-young-adults-as-a-prerequisite-to-obtain-age-adjusted-informed-patient-consent-prior-to-elective-surgical-procedures
#12
Reinhard E Friedrich, Kirsten Schmidt, András Treszl, Jan F Kersten
Introduction: Surgical procedures require informed patient consent, which is mandatory prior to any procedure. These requirements apply in particular to elective surgical procedures. The communication with the patient about the procedure has to be comprehensive and based on mutual understanding. Furthermore, the informed consent has to take into account whether a patient is of legal age. As a result of large-scale migration, there are eventually patients planned for medical procedures, whose chronological age can't be assessed reliably by physical inspection alone...
2016: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/27968706/radiopacity-of-alloplastic-bone-grafts-measured-with-cone-beam-computed-tomography-an-analysis-in-rabbit-calvaria
#13
Cristina Bucchi, Eduardo Borie, Alain Arias, Fernando José Dias, Ramón Fuentes
Availability of adequate bone structure for dental implants is still a problem in dentistry. Alloplastic grafts, which promote bone regeneration, are used as bone substitutes in orthopedic and oral surgical procedures. The aim of this study was to evaluate the radiopacity of three different synthetic bone grafts in rabbit calvaria, over 3 months, using cone beam computed tomography (CBCT). Four critical-size defects were made on the calvaria of 11 rabbits. The lesions were classified into three groups according to the alloplastic grafts they received: Osteon® 70/30, Osteon collagen®, and Osteon II® groups...
November 22, 2016: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27930461/odontogenic-orofacial-infections
#14
Dario Bertossi, Antonio Barone, Antonio Iurlaro, Simone Marconcini, Daniele De Santis, Marco Finotti, Pasquale Procacci
Acute dental abscess is a frequent and sometimes underestimated disease of the oral cavity. The acute dental abscess usually occurs secondary to caries, trauma, or failed endodontic treatment. After the intact pulp chamber is opened, colonization of the root canals takes place with a variable set of anaerobic bacteria, which colonize the walls of the necrotic root canals forming a specialized mixed anaerobic biofilm. Asymptomatic necrosis is common. However, abscess formation occurs when these bacteria and their toxic products breach into the periapical tissues through the apical foramen and induce acute inflammation and pus formation...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27917574/student-perceptions-of-exodontia-competency-assessment-in-a-uk-dental-school
#15
R Redford, C Durkan, V Sivarajasingam, C Emanuel
INTRODUCTION: Modern medical and dental training has migrated from assessing only the quantity of procedures performed to a combined assessment of both competency and quantity. This study explores student perceptions of competency assessment in exodontia at a UK dental school. MATERIALS AND METHODS: Anonymous questionnaires were distributed to dental students in years three, four and five at the School of Dentistry, Cardiff University (n=149). Responses consisted of dichotomous tick boxes and 5-point Likert scales, with thematic analysis of free-text responses...
December 5, 2016: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/27891319/hyaluronic-acid-hope-of-light-to-black-triangles
#16
Jyotsana Tanwar, Shital A Hungund
Interdental papilla construction, especially in the esthetic area, is one of the most challenging tasks. Interdental papilla loss might occur due to several reasons as a consequence of periodontal surgery or trauma. The purpose of this study is to report the reconstruction of lost interdental papilla using hyaluronic acid gel. Hyaluronic acid is a glycosaminoglycan molecule with anti-inflammatory, anti-edematous properties on periodontal tissues invaded by submicrobial flora. It enhances wound healing and accelerates periodontal repair and regeneration...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27881639/enhancement-of-osseointegration-by-direct-coating-of-rhbmp-2-on-target-ion-induced-plasma-sputtering-treated-sla-surface-for-dental-application
#17
Sungwon Kim, Cheonil Park, Byeong-Seok Moon, Hyoun-Ee Kim, Tae-Sik Jang
Owing to the excellent bioactive properties of recombinant human bone morphogenetic proteins (rhBMPs), dentistry considers them as a fascinating adjuvant alternative for enhancing bone regeneration and bone-to-implant junction in the early implantation stages. However, stable loading and delivery efficiency of rhBMPs on the implant surfaces involve major concerns because of the harsh wearing condition under load during implantation. In this study, to achieve successful rhBMP-2 delivery, a nanoporous surface structure is introduced on the sandblasting with large grit and acid-etching (SLA)-treated titanium (Ti) surface via the tantalum (Ta) target-ion induced plasma sputtering (TIPS) technique...
November 23, 2016: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/27876721/-prevention-of-lingual-nerve-damage-by-removing-stones-from-submandibular-salivary-gland-duct
#18
V A Semkin, V V Sogacheva
The aim of the study was to elaborate lingual nerve sparing procedure of submandibular gland duct stones extraction. The study involved 43 patients with syalolithiasis treated in Oral Surgery Unit of Central Research Institute of Dentistry and Maxillofacial Surgery in 2013-2015. It was shown that to prevent lingual nerve and artery injury submandibular salivary gland duct should be dissected to the level of obstruction thus allowing adequate visualization of anatomical correlations especially when removing stones from the distal part of the duct...
2016: Stomatologii︠a︡
https://www.readbyqxmd.com/read/27842482/antibiotic-release-from-calcium-phosphate-materials-in-oral-and-maxillofacial-surgery-molecular-cellular-and-pharmaceutical-aspects
#19
Angel Manchon, Juan Carlos Prados-Frutos, Carmen Rueda Rodriguez, Carmen Salinas Goodier, Mohammad Hadman Alkhraisat, Rosa Rojo, Arantza Rodriguez Gonzalez, Ana Berlanga, Enrique Lopez Cabarcos
Calcium phosphate materials (CPM) are widely used in dentistry and maxillofacial surgery. The presence of microbial biofilms and external infections are responsible for the failure of many procedures of dental implants and bone grafts. In an attempt to reduce the percentage of these infectious processes antibiotics have been associated with CPM improving certain conditions. For instance antibiotics administered orally or intravenously have less effect and the blood flow in relation to this is poor near implants and grafts...
November 14, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27834914/gene-therapy-a-paradigm-shift-in-dentistry
#20
REVIEW
Nida Siddique, Hira Raza, Sehrish Ahmed, Zohaib Khurshid, Muhammad Sohail Zafar
Gene therapy holds a promising future for bridging the gap between the disciplines of medicine and clinical dentistry. The dynamic treatment approaches of gene therapy have been advancing by leaps and bounds. They are transforming the conventional approaches into more precise and preventive ones that may limit the need of using drugs and surgery. The oral cavity is one of the most accessible areas for the clinical applications of gene therapy for various oral tissues. The idea of genetic engineering has become more exciting due to its advantages over other treatment modalities...
November 10, 2016: Genes
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