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https://www.readbyqxmd.com/read/27914157/-prevalence-of-dental-caries-in-type-1-diabetic-patients-treated-with-insulin-pump
#1
Rosana Garcia, Ana Coelho, Anabela Paula, Manuel Marques Ferreira, Francisco Caramelo, Luísa Barros, Carla Batista, Miguel Melo, Mário Jorge Silva, Eunice Carrilho
INTRODUCTION: Type 1 diabetes mellitus and oral health are strictly related on a reciprocal basis, and an increased susceptibility to a wide variety of oral diseases is recognised in these patients. The aim of the present study was to establish a relationship between the prevalence of dental caries in Type 1 diabetic patients treated with insulin pump and that of non-diabetic patients. MATERIAL AND METHODS: An observational clinical study of analytical and cross-sectional nature was conducted...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27909758/release-of-fluoride-from-orthodontic-adhesives-and-penetration-into-enamel
#2
Panita Suebsureekul, Smorntree Viteporn
OBJECTIVE: The purpose of this work was to compare fluoride release from three orthodontic adhesives and fluoride penetration into the enamel surface. MATERIALS AND METHODS: A total of 156 extracted human premolar teeth were randomly assigned to three experimental groups and one control group (without bonding) with 39 teeth per group. Brackets were bonded to teeth using Fuji Ortho LC(®), Illuminate(®), or Light Bond(®). The amount of fluoride released (ppm) into artificial saliva was measured by a fluoride ion-selective electrode connected to an ion analyzer on days 1, 3, 7, and 30...
December 1, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27909656/outcomes-of-demineralized-bone-matrix-enriched-with-concentrated-bone-marrow-aspirate-in-lumbar-fusion
#3
Remi M Ajiboye, Mark A Eckardt, Jason T Hamamoto, Benjamin Plotkin, Michael D Daubs, Jeffrey C Wang
BACKGROUND: Multiple studies have demonstrated that a significant amount of variability exists in various demineralized bone matrix (DBM) formulations, which casts doubts on its reliability in consistently promoting fusion. Bone marrow aspirate (BMA) is a cellular based graft that contains mesenchymal stem cells (MSCs) and growth factors can confer osteogenic and osteoinductive potential to DBM. The goal of this study was to describe the outcome of DBM enriched with concentrated BMA in patients undergoing combined lumbar interbody and posterolateral fusion...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27909654/bone-substitutes-and-expanders-in-spine-surgery-a-review-of-their-fusion-efficacies
#4
Abhijeet Kadam, Paul W Millhouse, Christopher K Kepler, Kris E Radcliff, Michael G Fehlings, Michael E Janssen, Rick C Sasso, James J Benedict, Alexander R Vaccaro
STUDY DESIGN: A narrative review of literature. OBJECTIVE: This manuscript intends to provide a review of clinically relevant bone substitutes and bone expanders for spinal surgery in terms of efficacy and associated clinical outcomes, as reported in contemporary spine literature. SUMMARY OF BACKGROUND DATA: Ever since the introduction of allograft as a substitute for autologous bone in spinal surgery, a sea of literature has surfaced, evaluating both established and newly emerging fusion alternatives...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27907810/prediction-of-autosomal-str-typing-success-in-ancient-and-second-world-war-bone-samples
#5
Irena Zupanič Pajnič, Tomaž Zupanc, Jože Balažic, Živa Miriam Geršak, Oliver Stojković, Ivan Skadrić, Matija Črešnar
Human-specific quantitative PCR (qPCR) has been developed for forensic use in the last 10 years and is the preferred DNA quantification technique since it is very accurate, sensitive, objective, time-effective and automatable. The amount of information that can be gleaned from a single quantification reaction using commercially available quantification kits has increased from the quantity of nuclear DNA to the amount of male DNA, presence of inhibitors and, most recently, to the degree of DNA degradation. In skeletal remains samples from disaster victims, missing persons and war conflict victims, the DNA is usually degraded...
November 19, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/27906970/poor-compliance-to-hormone-therapy-and-decreased-bone-mineral-density-in-women-with-premature-ovarian-insufficiency
#6
Anne Bachelot, Carole Nicolas, Solenne Gricourt, Jérôme Dulon, Monique Leban, Jean Louis Golmard, Philippe Touraine
Premature ovarian insufficiency leads to through infertility and estrogen deficiency. Optimal management encompasses estrogen replacement therapy. Long-term outcome of women with POI is not known. We design a study to evaluate the medical care, hormone replacement therapy compliance and bone mineral density (BMD) in POI women with at least a five-year follow-up after the first evaluation. One hundred and sixty-two patients (37.3±8.0 years) were evaluated (follow-up 7.9±2.8 years). Sixty-nine patients (42...
2016: PloS One
https://www.readbyqxmd.com/read/27905031/modern-approaches-to-studies-of-new-osteogenic-biomaterials-on-the-model-of-regeneration-of-critical-size-cranial-defects-in-rats
#7
M S Bartov, A V Gromov, M S Poponova, D M Savina, K E Nikitin, T M Grunina, V N Manskikh, O A Gra, V G Lunin, A S Karyagina, A L Gintsburg
Osteoinductive characteristics of new osteoplastic materials based on demineralized bone matrix of xenogenic origin with high and controlled degree of purification were studied on the model of regeneration of critical-size cranial defects in rats using modern approaches, including histological analysis, evaluation of morphological parameters of the bone tissue obtained by micro-computed tomography, and estimation of bone tissue growth rate using in vivo fluorochrome label. Demineralized bone matrix and, to a much greater extent, its activated form containing modified recombinant growth factor rhBMP-2 with high content of the dimeric form exhibited osteoinductive activity...
December 1, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27904416/adsorption-characteristics-of-different-adsorbents-and-iron-iii-salt-for-removing-as-v-from-water
#8
Josip Ćurko, Marin Matošić, Vlado Crnek, Višnja Stulić, Ivan Mijatović
The aim of this study is to determine the adsorption performance of three types of adsorbents for removal of As(V) from water: Bayoxide(®) E33 (granular iron(III) oxide), Titansorb(®) (granular titanium oxide) and a suspension of precipitated iron(III) hydroxide. Results of As(V) adsorption stoichiometry of two commercial adsorbents and precipitated iron(III) hydroxide in tap and demineralized water were fitted to Freundlich and Langmuir adsorption isotherm equations, from which adsorption constants and adsorption capacity were calculated...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27896279/a-case-of-relapsing-polyarthritis-associated-with-hidradenitis-suppurativa-case-report-and-review-of-literature
#9
Avinash Adiga, John Pixley
Hidradenitis suppurativa (HS) is a chronic, inflammatory follicular skin disease with recurrent skin nodules, sinus tracts, and scarring. We observed a case of HS associated with relapsing polyarthritis. On presentation the patient had a flare of polyarthritis with an increase in the number and size of pustular nodules. He has had similar episodes 1 to 2 times yearly subsiding with antibiotic treatment. Radiographs revealed erosions and demineralization. Symptoms improved following institution of anti-inflammatory and antibiotic therapy...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/27894521/effect-of-3-cements-on-white-spot-lesion-formation-after-full-coverage-rapid-maxillary-expander-a-comparative-in-vivo-study
#10
Ahmet Yagci, Yasemin Nur Korkmaz, Filiz Yagci, Aykan Onur Atilla, Suleyman Kutalmiş Buyuk
INTRODUCTION: The aim of this study was to assess the effects of 3 luting agents (glass ionomer cement, compomer, and polycarboxylate cement) on white spot lesion formation in patients with full-coverage bonded acrylic splint expanders. White spot lesion formation was assessed with quantitative light-induced fluorescence. METHODS: Full-coverage rapid maxillary expanders were cemented with glass ionomer cement, compomer, and polycarboxylate cement in groups 1, 2, and 3, respectively...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27892493/autologous-temporomandibular-joint-reconstruction-independent-of-exogenous-additives-a-proof-of-concept-study-for-guided-self-generation
#11
Jiao Wei, Tanja Herrler, Dong Han, Kai Liu, Rulin Huang, Markus Guba, Chuanchang Dai, Qingfeng Li
Joint defects are complex and difficult to reconstruct. By exploiting the body's own regenerative capacity, we aimed to individually generate anatomically precise neo-tissue constructs for autologous joint reconstruction without using any exogenous additives. In a goat model, CT scans of the mandibular condyle including articular surface and a large portion of the ascending ramus were processed using computer-aided design and manufacturing. A corresponding hydroxylapatite negative mold was printed in 3D and temporarily embedded into the transition zone of costal periosteum and perichondrium...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27889932/interaction-of-hepes-buffer-with-glass-ceramic-scaffold-can-hepes-replace-tris-in-sbf
#12
Dana Rohanová, Diana Horkavcová, Laine Paidere, Aldo Roberto Boccaccini, Pavlína Bozděchová, Petr Bezdička
An international standard (ISO: 23317:2014) exists for the in vitro testing of inorganic biomaterials in simulated body fluid (SBF). This standard uses TRIS buffer to maintain neutral pH in SBF, but in our previous paper, we showed that the interaction of a tested glass-ceramic material with TRIS can produce false-positive results. In this study, we evaluated whether the HEPES buffer, which also belongs to the group of Good's buffers, would be more suitable for SBF. We compared its suitability in two media: SBF with HEPES and demineralized water with HEPES...
November 27, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/27884718/micro-ct-analysis-of-naturally-arrested-brown-spot-enamel-lesions
#13
Mahdi Shahmoradi, Michael V Swain
OBJECTIVES: The aim of this study was to characterize the mineral density parameters through natural enamel brown spot lesions (BSLs) and to visualize and map their mineral distribution pattern in comparison to enamel white-spot lesions (WSLs). METHODS: Study specimens included seventeen proximal WSLs (ICDAS 1, 2), seventeen proximal BSLs and seventeen sound proximal specimens (ICDAS 0) collected from The Oral Surgery Department at Sydney Dental Hospital, Sydney, Australia...
November 21, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27883077/tgf-beta-receptor-ii-interacting-protein-1-an-intracellular-protein-has-an-extracellular-role-as-a-modulator-of-matrix-mineralization
#14
Amsaveni Ramachandran, Sriram Ravindran, Chun-Chieh Huang, Anne George
Transforming growth factor beta receptor II interacting protein 1 (TRIP-1), a predominantly intracellular protein is localized in the ECM of bone. TRIP-1 lacks a signal peptide, therefore, in this study, we provide evidence that intracellular TRIP-1 can be packaged and exported to the ECM via exosomes. Overexpression of TRIP-1 in MC3T3-E1 cells resulted in increased matrix mineralization during differentiation and knockdown resulted in reduced effects. In vivo function of TRIP-1 was studied by an implantation assay performed using TRIP-1 overexpressing and knockdown cells cultured in a 3-dimmensional scaffold...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27879420/saliva-and-serum-protein-exchange-at-the-tooth-enamel-surface
#15
D Heller, E J Helmerhorst, F G Oppenheim
The acquired enamel pellicle is an oral, fluid-derived protein layer that forms on the tooth surface. It is a biologically and clinically important integument that protects teeth against enamel demineralization, and abrasion. Tooth surfaces are exposed to different proteinaceous microenvironments depending on the enamel location. For instance, tooth surfaces close to the gingival sulcus contact serum proteins that emanate via this sulcus, which may impact pellicle composition locally. The aims of this study were to define the major salivary and serum components that adsorb to hydroxyapatite, to study competition among them, and to obtain preliminary evidence in an in vivo saliva/serum pellicle model...
November 22, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27878590/use-of-saline-waste-water-from-demineralization-of-cheese-whey-for-cultivation-of-schizochytrium-limacinum-pa-968-and-japonochytrium-marinum-an-4
#16
Tomas Humhal, Petr Kastanek, Zuzana Jezkova, Anna Cadkova, Jana Kohoutkova, Tomas Branyik
Saline waste water from demineralization of cheese whey was used as the main component of waste saline medium (WSM) for cultivation of thraustochytrids. The suitability of WSM for cultivation of Schizochytrium limacinum PA-968 and Japonochytrium marinum AN-4 was evaluated by comparison with cultivation on nutrient medium (NM) in shake flask and fermenter cultures. Biomass productivities achieved in WSM for the thraustochytrids were comparable with those in NM for both shake flask and fermenter cultures. The maximum total lipid content (56...
November 23, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/27877865/three-dimensional-printed-macroporous-polylactic-acid-hydroxyapatite-composite-scaffolds-for-promoting-bone-formation-in-a-critical-size-rat-calvarial-defect-model
#17
Haifeng Zhang, Xiyuan Mao, Zijing Du, Wenbo Jiang, Xiuguo Han, Danyang Zhao, Dong Han, Qingfeng Li
We have explored the applicability of printed scaffold by comparing osteogenic ability and biodegradation property of three resorbable biomaterials. A polylactic acid/hydroxyapatite (PLA/HA) composite with a pore size of 500 μm and 60% porosity was fabricated by three-dimensional printing. Three-dimensional printed PLA/HA, β-tricalcium phosphate (β-TCP) and partially demineralized bone matrix (DBM) seeded with bone marrow stromal cells (BMSCs) were evaluated by cell adhesion, proliferation, alkaline phosphatase activity and osteogenic gene expression of osteopontin (OPN) and collagen type I (COL-1)...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27872380/management-of-distal-tibial-metaphyseal-bone-defects-with-an-intramedullary-nitinol-scaffold-a-novel-technique
#18
Samuel E Ford, J Kent Ellington
: Difficult problems that are faced when reconstructing severe pilon fractures include filling metaphyseal defects and supporting an impacted, multifragmented articular surface. Supplements to plate fixation currently available in a surgeon's armamentarium include cancellous bone autograft, structural bone allograft, demineralized bone matrix, and calcium-based cements. Cancellous autograft possesses limited inherent mechanical stability and is associated with graft site morbidity. Structural allografts incorporate inconsistently and are plagued by late resorption...
November 20, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27871699/evaluation-of-enamel-demineralization-in-adolescents-after-rapid-maxillary-expansion-using%C3%A2-the-quantitative-light-induced-fluorescence%C3%A2-method-a-single-center-randomized-controlled-clinical-trial
#19
Asli Baysal, Seher Nazlı Ulusoy, Tancan Uysal
INTRODUCTION: The aim of this 2-arm parallel trial was to evaluate enamel demineralization after rapid maxillary expansion (RME) compared with an untreated control group using quantitative light-induced fluorescence. METHODS: Thirty-six patients who needed RME as part of their orthodontic treatment were separated randomly into either the control group or the intervention group (RME). Eligibility criteria included crossbite, no previous orthodontic treatment, no systemic disease, and all permanent teeth erupted except second and third molars...
November 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27863162/irradiation-sterilized-gelatin-water-glycerol-ternary-gel-as-an-injectable-carrier-for-bone-tissue-engineering
#20
Yantao Zhao, Liwei Han, Jun Yan, Zhonghai Li, Fuli Wang, Yang Xia, Shuxun Hou, Hongbin Zhong, Feimin Zhang, Ning Gu
Injectable gelatin gels offer an attractive option for filling bone defects. The challenge is to fabricate gelatin gels with optimal gelation properties, which can be irradiation sterilized. Here, a gelatin-water-glycerol (GWG) gel is reported for use as a broad-spectrum injectable carrier. This ternary gel is high in glycerol and low in water, and remains stable after gamma irradiation at doses (25 kGy). As an injectable gel, it remains a viscous solution at gelatin concentrations ≤2.0%, at room temperature...
November 8, 2016: Advanced Healthcare Materials
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