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demineralization

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https://www.readbyqxmd.com/read/29242128/performance-of-5-different-displays-in-the-detection-of-artificial-incipient-and-recurrent-caries-like-lesions
#1
Shawn Chancy Countryman, Saulo Leonardo Sousa Melo, Manuella Dias Furtado Belem, Francisco Haiter-Neto, Marcos A Vargas, Veeratrishul Allareddy
OBJECTIVES: The aim of this study was to assess whether auto-calibrating medical-grade monitors perform better than off-the-shelf monitors and tablet computers in detecting artificial incipient and recurrent caries-like lesions. STUDY DESIGN: Sixty extracted teeth (30 premolars and 30 molars) were selected. All molars received class II amalgam and composite restorations. A 7-mm2 area on the crowns of half of the teeth was demineralized. Phantoms consisting of 4 teeth were created...
November 15, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29238578/bone-eating-kidney-disease
#2
Abhilash Koratala, Muhannad Leghrouz, Amir Kazory
In the current era of early detection of chronic kidney disease and efficient therapeutic options for management of its complications, skeletal manifestations of renal hyperparathyroidism are increasingly rare. A 31-year-old female patient presented for evaluation of severe pain in the left forearm, right hand, right knee, right hip, and lower back following a fall sustained 3 days prior to presentation. She had a history of end-stage renal disease and received maintenance hemodialysis. Review of the medical records revealed that she had poor compliance with her diet, medications, and dialysis treatments...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29238413/remineralization-strategies-in-oral-hygiene-a-position-paper-of-italian-society-of-oral-hygiene-sciences-s-i-s-i-o-working-group
#3
Consuelo Sanavia, Marco Tatullo, Jessica Bassignani, Silvia Cotellessa, Giulia Fantozzi, Giovanna Acito, Alessia Iommiello, Lorella Chiavistelli, Alessia Iommiello, Silvia Sabatini, Gianna Maria Nardi
Background/Objective: The clinical conditions that lead to an alteration of the enamel structure are numerous. The diet high in sugars and acidifying substances, psychological stress that triggers parafunctional behaviors, the reduced intake of fiber-rich foods or alkalizing substances, together with other factors, contribute to demineralization of the tooth enamel. Dental mineralizing products on the current market are distinguished according to the dosage form, the active ingredient, the release technology, clinical indications and patient choice...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/29235096/effects-of-skeletal-element-identity-delipidation-and-demineralization-on-the-analysis-of-stable-isotope-ratios-of-c-and-n-in-fish-bone
#4
M Bas, L Cardona
Stable isotope ratios of C and N in the bone tissue of three different skeletal elements (angular, cleithrum and vertebra) of three fish species from different evolutionary lineages (Clupeiformes, Atheriniformes and Notothenioidei) were determined before (δ13 Cbulk and δ15 Nbulk ) and after demineralization and delipidation (δ13 Cdml and δ15 Ndml ). One of the species had cellular bone and the other two had acellular bone. Results revealed that δ15 N and δ13 C values from different skeletal elements were interchangeable in species with acellular bone, but caution was needed in species with cellular bone, as δ15 N values varied among skeletal elements...
December 12, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/29233539/effect-of-tetracalcium-phosphate-monetite-toothpaste-on-dentin-remineralization-and-tubule-occlusion-in-vitro
#5
L Medvecky, R Stulajterova, M Giretova, J Mincik, M Vojtko, J Balko, J Briancin
OBJECTIVES: To investigate the tubule occlusion and remineralization potential of a novel toothpaste with active tetracalcium phosphate/monetite mixtures under de/remineralization cycling. METHODS: Dentin de/remineralization cycling protocol consisted of demineralization in 1% citric acid at pH 4.6 with following remineralization with toothpastes and soaking in artificial saliva. Effectiveness of toothpastes to promote remineralization was evaluated by measurement of microhardness recovery, analysis of surface roughness, thickness of coating and scanning electron microscopy...
December 9, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29228763/prevention-of-erosions-by-a-surface-sealant-and-adhesives-under-abrasive-conditions
#6
Florian J. Wegehaupt, Géraldine Kummer, Thomas Attin
It was the aim of the current in vitro study to test the erosion-preventive potential of an experimental surface sealant (K-0184) and currently marketed self-etch adhesive systems under abrasive conditions. Ninety-six dentine specimens were randomly allocated to eight groups (n=12): (1) positive control (no treatment), (2) K-0184, (3) Shield Force Plus, (4) Xeno Select, (5) Scotchbond Universal, (6) Adhese Universal, (7) OptiBond All-In-One, and (8) Clearfil SE Bond. Before and after sealing, dentine specimens were measured profilometrically to determine the layer thickness of the protective agents...
September 17, 2017: Swiss Dental Journal
https://www.readbyqxmd.com/read/29211951/a-double-blinded-randomized-study-evaluating-the-in-vivo-effects-of-a-novel-dental-gel-on-enamel-surface-microstructure-and-microhardness
#7
Afarin Golabgir Anbarani, Jessica Ho, Thinh Hung Vu, Ali Forghany, Tracie Lam, Erisa Khashai, Karan Sahni, Thair Takesh, Petra Wilder-Smith
OBJECTIVES: The objective of this study was to evaluate the in vivo effects of a 2.6% edathamil gel (Livionex® Dental Gel) on surface microhardness and microstructure in 180 pre-eroded enamel chips. METHODS: This was a double-blind, randomized study. Two enamel chips each were cut from 90 healthy sterilized extracted teeth. One chip from each pair underwent microhardness testing and scanning electron microscopy (SEM) to establish baselines. The remaining 90 samples were demineralized, and then mounted onto intra-oral retainers worn by nine subjects, with five chips mounted on each retainer for each of the two study arms...
September 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29211949/fluoride-uptake-profiles-of-selected-european-toothpastes-into-hard-tissues-and-plaque
#8
Joel Moore, Eva Schneiderman, Teresa Farmer, Marianne Zsiska
OBJECTIVES: To compare the fluoridating potential of selected European toothpastes using a combination of enamel, dentin, and plaque in vitromodels. METHODS: Four in vitromodels were included: 1) Enamel Fluoride (F) Uptake (EFU); 2) Dentin F Uptake (DFU); 3) Enamel Solubility Reduction (ESR); and 4) Plaque F Uptake (PFU). A core set of marketed products was included in all studies, plus a standard toothpaste (1100 ppm F as NaF/silica) and placebo control (the PFU study did not include a placebo control)...
September 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29211281/effect-of-fluoride-dentifrice-and-casein-phosphopeptide-amorphous-calcium-phosphate-cream-with-and-without-fluoride-in-preventing-enamel-demineralization-in-a-ph-cyclic-study
#9
Priscila de Pinto Sinfiteli, Thereza Christina Lopes Coutinho, Patrícia Regina Almeida de Oliveira, Wesley Felisberto Vasques, Leandra Matos Azevedo, André Maues Brabo Pereira, Monica Almeida Tostes
OBJECTIVE: Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) complexes are anticariogenic and capable of remineralizing the early stages of enamel lesions. The use of fluoride prevents dental decay and the association of CPP-ACP with fluoride can increase remineralization. To evaluate the effect of CPP-ACP and CPP-ACPF creams associated with a fluoride dentifrice to prevent enamel demineralization in a pH cyclic model. MATERIAL AND METHODS: Previously selected by surface microhardness (SH) analysis, human enamel blocks (n = 56) were submitted to daily treatment with dentifrice in a pH-cycling model...
November 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29208784/impact-of-mouthwashes-on-antibacterial-activity-of-subjects-with-fixed-orthodontic-appliances-a-randomized-clinical-trial
#10
A Nishad, N S Sreesan, Joseph Joy, Lakshmi Lakshmanan, Joyce Thomas, V A Anjali
AIM: The study aimed to assess the impact of mouthwashes on antibacterial activity of individuals with fixed orthodontic appliances. MATERIALS AND METHODS: A total of 60 individuals were considered in the study. Sixty (20 each group) nonextraction class I individuals were randomly divided into experimental and control groups. Group I: Experimental group [chlorhexidine (CHX) mouthwash], group II: Experimental group (neem mouthwash), group III: Control group (distilled water)...
December 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29207844/impact-of-nano-hydroxyapatite-nano-silver-fluoride-and-sodium-fluoride-varnish-on-primary-teeth-enamel-remineralization-an-in-vitro-study
#11
Ali Nozari, Shabnam Ajami, Azade Rafiei, Elmira Niazi
Introduction: Dental caries is still prevailing worldwide, although different anti caries products have been introduced. Each remineralizing agent has its own shortcomings. Therefore, looking for new agents to have benefits of previous ones with lesser side effects is worthwhile. Aim: To determine the remineralization ability of NaF varnish, nano-Hydroxyapatite Serum (n-HAP) and Nano Silver Fluoride (NSF) on enamel of primary anterior teeth. Materials and Methods: Incipient caries were induced in primary sound anterior teeth by storing each specimen in demineralization solution for 72 hours...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207838/in-vitro-evaluation-of-resin-infiltrant-penetration-into-white-spot-lesions-of-deciduous-molars
#12
Dinesh Francis Swamy, Elaine Savia Barretto, Shanthala B Mallikarjun, Sapna Sada Raut Dessai
Introduction: Caries Infiltration is a recent microinvasive restorative technique that permits treatment of non-cavitated demineralized lesions, known as White Spot Lesions (WSL). Aim: To evaluate the extent of penetration of a commercially available resin caries-infiltrant into natural WSL occurring in deciduous tooth enamel. Materials and Methods: Deciduous molars with natural WSL on any smooth surface were selected and sectioned into halves to yield equal control and experimental groups...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207835/sem-evaluation-of-enamel-surface-changes-and-enamel-microhardness-around-orthodontic-brackets-after-application-of-co2-laser-er-cr-ysgg-laser-and-fluoride-varnish-an-in-vivo-study
#13
Tarundeep Kaur, Tulika Tripathi, Priyank Rai, Anup Kanase
Introduction: One of the most undesirable consequences of orthodontic treatment is occurrence of enamel demineralization around orthodontic brackets. Numerous in vitro studies have reported the prevention of enamel demineralization by surface treatment with lasers and fluoride varnish. Aim: To evaluate the changes on the enamel surface and microhardness around orthodontic brackets after surface treatment by CO2 laser, Er, Cr:YSGG laser and fluoride varnish in vivo...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29204672/bone-loss-in-rheumatoid-arthritis-basic-mechanisms-and-clinical-implications
#14
REVIEW
Jae-Hyuck Shim, Zheni Stavre, Ellen M Gravallese
Patients with rheumatoid arthritis (RA) have historically developed progressive damage of articular bone and cartilage, which correlates with disability over time. In addition, these patients are prone to periarticular and systemic bone loss, carrying additional morbidity. In contrast to what is seen in many other rheumatic diseases, the impact of inflammation on bone in RA is uniquely destructive. Loss of articular bone (erosions) and periarticular bone (demineralization) is a result of excessive bone resorption and markedly limited bone formation...
December 4, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29203430/optimization-of-perioperative-management-of-proximal-femoral-fracture-in-the-elderly
#15
REVIEW
P Merloz
Proximal femoral fracture in elderly subjects is a major event that is life-threatening in the medium-to-long term. Advanced age, male gender and number of comorbidities largely account for high mortality and require geriatric expertise. Protein-energy malnutrition and bone demineralization increase mortality. Mortality can, on the other hand, be reduced by acting on two variables accessible to medical intervention: daily activities and nutritional status. Functional and neurocognitive assessment allow the risk of dependency to be evaluated, and global geriatric work-up can prevent sudden breakdown of homeostasis...
December 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29202298/impact-of-ph-and-application-time-of-meta-phosphoric-acid-on-resin-enamel-and-resin-dentin-bonding
#16
A F M Cardenas, F S F Siqueira, M C Bandeca, S O Costa, M V S Lemos, V P Feitora, A Reis, A D Loguercio, J C Gomes
PURPOSE: To evaluate the immediate microshear resin-enamel bond strength (μSBS) and the immediate and 6-month microtensile bond strength (μTBS) and nanoleakage (NL) of the adhesive interface performed by different pHs of 40% meta-phosphoric acid (MPA) were compared with conventional 37% ortho-phosphoric acid (OPA) under different application times. Additionally, the enamel etching patterns were evaluated and the chemical/morphological changes induced by these differents groups were evaluated...
November 22, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29198851/real-time-observations-of-tooth-demineralization-in-3-dimensions-using-x-ray-microtomography
#17
Graham Roy Davis, David Mills, Paul Anderson
OBJECTIVES: The immediate aim of this study was to develop and test a method to record, visualize and quantify real-time demineralization (or remineralization) of teeth in vitro using X-ray microtomography (XMT or micro-CT). The longer term objective is to improve understanding of demineralization processes, allowing the creation of better artificial models of dental caries and better quantification of the efficacy of caries treatment and prevention regimes. METHODS: For demineralization studies, the tooth is mounted in a plastic container through which the demineralizing solution is circulated during simultaneous repeated scanning...
November 30, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29196819/an-effective-delivery-vehicle-of-demineralized-bone-matrix-incorporated-with-engineered-collagen-binding-human-bone-morphogenetic-protein-2-to-accelerate-spinal-fusion-at-low-dose
#18
Weiguo Zhu, Yong Qiu, Fei Sheng, Xinxin Yuan, Leilei Xu, Hongda Bao, Jianwu Dai, Zezhang Zhu
The aim of this study was to investigate the feasibility and efficacy of a new delivery matrix using demineralized bone matrix (DBM) incorporated with collagen-binding bone morphogenetic protein-2 (CBD-BMP-2) in the rat inter-transverse spinal fusion model. Sixty rats undergoing posterolateral (inter-transverse) spinal fusion were divided into 3 groups according to the fusion materials containing different components (n = 20 per group). Group A were implanted with DBM, Group B with combination of DBM and BMP-2 and Group C with combination of DBM and CBD-BMP-2...
December 1, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29193676/poly-amido-amine-dendrimer-and-dental-adhesive-with-calcium-phosphate-nanoparticles-remineralized-dentin-in-lactic-acid
#19
Kunneng Liang, Shimeng Xiao, Michael D Weir, Chongyun Bao, Huaibing Liu, Lei Cheng, Xuedong Zhou, Jiyao Li, Hockin H K Xu
Patients with dry mouth often have an acidic oral environment lacking saliva to provide calcium (Ca) and phosphate (P) ions. There has been no report on tooth remineralization in acidic pH4 and CaP ion-lacking solutions. The objective of this study was to develop a novel method of combining poly(amido amine) (PAMAM) with adhesive containing nanoparticles of amorphous calcium phosphate (NACP) for dentin remineralization in pH4 and CaP-lacking solution for the first time. Demineralized dentin was tested in four groups: (1) dentin control, (2) dentin with PAMAM, (3) dentin with NACP adhesive, (4) dentin with PAMAM + NACP adhesive...
November 28, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29187034/growth-restriction-osteopenia-placental-massive-perivillous-fibrin-deposition-with-or-without-intervillous-histiocytes-and-renal-tubular-dysgenesis-an-emerging-complex
#20
Sahar Abdulghani, Felipe Moretti, Peter Gj Nikkels, Suonavy Khung-Savatovsky, Julie Hurteau-Miller, David Grynspan
We describe a case of a pregnancy complicated by early onset asymmetric growth restriction with anhydramnios with termination occurring at 21 weeks. Fetal autopsy showed demineralization of bones and renal tubular dysgenesis. Placental pathology showed features of massive perivillous fibrin deposition and chronic histiocytic intervillositis. We review prior documentation of this association and briefly discuss potential pathogenesis.
January 1, 2017: Pediatric and Developmental Pathology
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