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https://www.readbyqxmd.com/read/29226952/differential-expression-of-micrornas-let-7a-mir-125b-mir-100-and-mir-21-and-interaction-with-nf-kb-pathway-genes-in-periodontitis-pathogenesis
#1
Venugopal Priyanka, Koshy Teena, Lavu Vamsi, Ranga Rao Suresh, Ramasamy Selvaraj, Hariharan Samyukta, Venkatesan Vettriselvi
Periodontitis is a chronic inflammatory disease which is caused by destruction of the tissues that surrounds and supports the tooth. Deregulation of microRNAs has been reported to cause several inflammatory diseases such as autoimmune disease, chronic periodontitis and cancer. In the present study, we have investigated the expression pattern of microRNAs let-7a, miR-125b, miR-100, miR-21 and RNA-binding protein LIN-28A among healthy individuals and chronic periodontitis patients. Total RNA was isolated from gingival tissue samples collected from 100 healthy individuals and 100 chronic periodontitis patients...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29226140/prevalence-of-helicobacter-pylori-vaca-genotypes-and-caga-gene-in-dental-plaque-of-asymptomatic-mexican-children
#2
Alejandra Mendoza-Cantú, Víctor Hugo Urrutia-Baca, Cynthia Sofía Urbina-Ríos, Myriam Angélica De la Garza-Ramos, Martha Elena García-Martínez, Hilda H H Torre-Martínez
The variability in Helicobacter pylori vacA and cagA genes has been related to the progression of the gastrointestinal disease; also the presence of H. pylori in the oral cavity has been associated with periodontal disease in adults, but, in children without dyspeptic symptoms, little is known about this. We evaluated the prevalence of H. pylori and the presence of vacA/cagA genotypes in the oral cavity of Mexican children without dyspeptic symptoms. The gingival status was measured, and dental plaque samples (n = 100) were taken...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29224001/dental-caries-and-developmental-defects-of-enamel-in-the-primary-dentition-of-preterm-infants-case-control-observational-study
#3
Ina Manuela Schüler, Stefanie Haberstroh, Kristin Dawczynski, Thomas Lehmann, Roswitha Heinrich-Weltzien
AIM: Assessment of dental health in the primary dentition of preterm infants (PTI) including investigation of mother- and infant-related risk factors in a case-control study design. MATERIAL AND METHODS: One hundred twenty-eight infants aged 3-4 years were included. Sixty-four PTI (27 males) were randomly selected from the preterm registry of the Jena University Hospital. As a control group served 64 full-term infants (FTI) recruited from the Department of Paediatric Dentistry, matched for age and sex...
December 9, 2017: Caries Research
https://www.readbyqxmd.com/read/29223023/live-cell-imaging-reveals-different-modes-of-cytotoxic-action-of-extracts-derived-from-commonly-used-luting-cements
#4
Rita Trumpaitė-Vanagienė, Alina Čebatariūnienė, Virginijus Tunaitis, Alina Pūrienė, Augustas Pivoriūnas
OBJECTIVE: To compare cytotoxicity of extracts derived from commonly used luting cements: Hoffmann's Zinc Phosphate (ZPC), GC Fuji Plus Resin Modified Glass Ionomer (RMGIC) and 3M ESPE RelyX Unicem Resin Cement (RC) on primary human gingival fibroblasts (HGFs). DESIGN: HGFs were exposed to different concentrations of the ZPC, RMGIC and RC extracts. The cytotoxicity was assessed with the PrestoBlue Cell Viability Reagent and viable cells were counted by a haemocytometer using the trypan blue exclusion test...
November 27, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29222809/effect-of-abutment-height-on-interproximal-implant-bone-level-in-the-early-healing-a-randomized-clinical-trial
#5
Juan Blanco, Alexandre Pico, Leticia Caneiro, Lourdes Nóvoa, Pilar Batalla, Pablo Martín-Lancharro
OBJECTIVE: The aim of this randomized clinical trial was to compare the effect on the interproximal implant bone loss (IBL) of two different heights (1 and 3 mm) of definitive abutments placed at bone level implants with a platform switched design. MATERIAL AND METHODS: Twenty-two patients received forty-four implants (6.5-10 mm length and 3.5-4 mm diameter) to replace at least two adjacent missing teeth, one bridge set to each patient-two implants per bridge...
December 8, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29220334/orodispersible-films-for-compounding-pharmacies
#6
Anderson O Ferreira, Marcos Antônio F Brandão, Francisco José Raposo, Hudson C Polonini, Nádia Rezende Barbosa Raposo
Orodispersible film can be defined as a solid pharmaceutical form intended for the delivery and rapid local or systemic release of active ingredients, consisting of a water-soluble polymer film that hydrates rapidly, adhering and dissolving immediately when placed on the tongue or in the oral cavity (oral, palatal, gingival, lingual, or sublingual), without the need for water administration or mastication. Due to its outstanding importance in cases of emergency, practicality of use by patients in transit, and high adherence, orodispersible film has evolved in popularity and success among consumers...
November 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/29218735/soft-tissue-regrowth-after-osseous-resective-surgery-with-and-without-fibre-retention-technique-four-year-follow-up-of-a-randomized-clinical-trial
#7
Mario Aimetti, Giulia Maria Mariani, Elena Ercoli, Martina Audagna, Federica Romano
AIM: The aim of this study was to compare the clinical outcomes and soft-tissue rebound following Fibre Retention Osseous Resective Surgery (FibReORS) and Osseous Resective Surgery (ORS) over a 48-month period. MATERIALS AND METHODS: Thirteen chronic periodontitis patients, displaying two contralateral posterior sextants with residual intrabony defects ≤ 3 mm in single-rooted or multi-rooted teeth with no or grade I furcation involvement, were treated in a split-mouth study model...
December 8, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29216779/the-plaque-and-gingivitis-inhibiting-capacity-of-a-commercially-available-mouthwash-containing-essential-oils-and-ethyl-lauroyl-arginate-a-randomized-clinical-trial
#8
Liv O Valør, Inghild K R Norton, Odd C Koldsland, Anne Merete Aass, Andrej M Grjibovski, Hans R Preus
OBJECTIVE: A commercially available mouth rinse with ethyl lauroyl arginate and essential oils claims to have better antimicrobial properties than the traditional essential oil products. The aim of this study was to compare the plaque and gingivitis inhibiting effect of the commercial product containing essential oils with ethyl lauroyl arginate with one placebo and one negative control in a modified experimental gingivitis model. MATERIALS AND METHODS: In three groups of healthy volunteers, experimental gingivitis was induced and monitored over 21 d, simultaneously treated with the commercial test solution, 21...
December 7, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29215686/are-desensitizing-toothpastes-equally-biocompatible-and-effective-against-microorganisms
#9
Samira Esteves Afonso Camargo, Noala Vicensoto Moreira Milhan, Fernanda de Oliveira Saraiva, Jonatas Rafael de Oliveira, Luciane Dias de Oliveira, Carlos Henrique Ribeiro Camargo
The aims of this study were evaluate cytotoxicity, genotoxicity, antimicrobial activity of desensitizing toothpastes compared to a common one and the surface roughness of tooth enamel submitted to brushing with these toothpastes. Samples of three desensitizing toothpastes (Colgate Sensitive, Sensodyne and Oral B Sensitive) and common toothpaste (Colgate) were placed in contact with gingival human fibroblasts. Cytotoxicity and genotoxocity were measured by MTT assay and micronucleus test. Antimicrobial activity of the toothpastes extracts against C...
September 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29212665/association-between-individual-and-neighbourhood-socioeconomic-factors-and-masticatory-efficiency-a-cross-sectional-analysis-of-the-paris-prospective-study-3
#10
Adrien Boillot, Xavier Jouven, Hélène Rangé, Marie Cécile Perier, Frédérique Thomas, Catherine Guibout, Bruno Pannier, Pierre Boutouyrie, Jean-Philippe Empana, Philippe Bouchard
BACKGROUND: There is a lack of evidence on the impact of socioeconomic factors on masticatory efficiency. The present study investigates the relationship between individual and neighbourhood socioeconomic factors (main exposure) and the number of masticatory units (MUs) used as surrogate of the masticatory efficiency (main outcome). METHODS: In this cross-sectional study nested in the Paris Prospective Study 3, 4270 adults aged 50-75 and recruited from 13 June 2008 to 31 May 2012 underwent a full-mouth examination...
December 6, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29212295/inhibitory-effects-of-boesenbergia-pandurata-on-age-related-periodontal-inflammation-and-alveolar-bone-loss-in-fischer-344-rats
#11
Haebom Kim, Changhee Kim, Do Un Kim, Hee Chul Chung, Jae-Kwan Hwang
Periodontitis, an infective disease caused by oral pathogens and the intrinsic aging process, results in the destruction of periodontal tissues and alveolar bone loss. This study investigated whether Boesenbergia pandurata extract (BPE) standardized with panduratin A exerted anti-periodontitis effects using an aging model representative of naturally occurring periodontitis. In aged rats, the oral administration of BPE (200 mg/kg/day) for 8 weeks significantly reduced the mRNA and protein expression of interleukin (IL)-1β, nuclear factor-kappaB (NF-κB), matrix metalloproteinase (MMP)-2, and MMP-8 in gingival tissues (p < 0...
December 8, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29211365/oral-cavity-health-among-cystic-fibrosis-patients-literature-overview
#12
REVIEW
Katarzyna Herman, Małgorzata Kowalczyk-Zając, Tomasz Pytrus
Cystic fibrosis is a genetic disorder in which the mutation of the Cystis Fibrosis Transmembrane Conductance Regulator (CFTR) gene that codes the protein forming a chloride channel of epithelial cells results in its distorted functioning. The manifestations of the disorder are mainly observed in the respiratory and digestive system. Accumulation of sticky and thick mucus is the dominant clinical symptom; it leads to chronic infections and gradual tissue destruction. Although cystic fibrosis remains incurable, it is currently feasible to extend patients' life expectancy thanks to modern therapy possibilities...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29211349/evaluation-of-the-cytotoxicity-of-selected-conventional-glass-ionomer-cements-on-human-gingival-fibroblasts
#13
Grażyna Marczuk-Kolada, Elżbieta Łuczaj-Cepowicz, Małgorzata Pawińska, Adam Hołownia
BACKGROUND: Dentistry materials are the most frequently used substitutes of human tissues. Therefore, an assessment of dental filling materials should cover not only their chemical, physical, and mechanical characteristics, but also their cytotoxicity. OBJECTIVES: To compare the cytotoxic effects of 13 conventional glass ionomer cements on human gingival fibroblasts. MATERIAL AND METHODS: The assessment was conducted using the MTT test. Six samples were prepared for each material...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29211279/effects-of-chlorhexidine-preprocedural-rinse-on-bacteremia-in-periodontal-patients-a-randomized-clinical-trial
#14
Rodrigo Dalla Pria Balejo, José Roberto Cortelli, Fernando Oliveira Costa, Renata Magalhães Cyrino, Davi Romeiro Aquino, Karina Cogo-Müller, Taís Browne Miranda, Sara Porto Moura, Sheila Cavalca Cortelli
OBJECTIVE: Single dose of systemic antibiotics and short-term use of mouthwashes reduce bacteremia. However, the effects of a single dose of preprocedural rinse are still controversial. This study evaluated, in periodontally diseased patients, the effects of a pre-procedural mouth rinse on induced bacteremia. MATERIAL AND METHODS: Systemically healthy individuals with gingivitis (n=27) or periodontitis (n = 27) were randomly allocated through a sealed envelope system to: 0...
November 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29211121/evolution-of-periodontal-disease-immune-response-and-rank-rankl-opg-system
#15
Fabrício Gibertoni, Meire Ellen Ligia Sommer, Marcelo Augusto Marretto Esquisatto, Maria Esméria Corezola do Amaral, Camila Andrea de Oliveira, Thiago Antônio Moretti de Andrade, Fernanda Aparecida Sampaio Mendonça, Milton Santamaria-Jr, Maíra Felonato
The aim of this study was to evaluate markers of bone loss and immune response present in evolution of periodontal disease. One hundred and two Wistar rats were divided into three animals groups: PD0, without ligation and PD15 days and PD60 days, submitted to ligation placement with a sterile 3-0 silk cord in the cervical region of the upper first molar on both sides. Samples were obtained from the gingival tissue for histomorphometric analysis, immunohistochemical analysis of RANK, RANKL, OPG, characterization of the inflammatory infiltrate, quantification of nitric oxide, MCP-1, RANTES, IP10 chemokines, and expression of the TGF-b1, VEG, and bFGF...
November 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29211120/cell-derived-microparticles-in-gingival-crevicular-fluid-from-periodontitis-patients-with-type-2-diabetes
#16
Carlos Marcelo Figueredo, Ronaldo Lira, Manuela Rubim Sete, Ricardo Guimarães Fischer
Cell-derived microparticles (MPs) have been described as vital contributors to the inflammatory process. However, its role in the periodontal disease pathogenesis remains unclear. Therefore, we aimed to detect the presence neutrophil (CD66b+) and platelet (CD41b+) derived microparticles in gingival crevicular fluid from individuals having periodontitis aggravated by type 2 diabetes. Twelve patients (56.2 ±7.2 yrs) with severe form of chronic periodontitis aggravated by type 2 diabetes were included. Clinical and metabolic data were gathered...
November 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29210181/intraoral-versus-extraoral-cementation-of-implant-supported-single-crowns-clinical-biomarker-and-microbiological-comparisons
#17
Begüm Kıran, Muhittin Toman, Nurcan Buduneli, David F Lappin, Suna Toksavul, Nejat Nizam
OBJECTIVES: Implant supported single metal-ceramic crowns cemented either extraorally or intraorally were comparatively evaluated by clinical, radiologic, biomarker, and microbiological parameters. MATERIALS AND METHODS: Twelve patients with bilateral single tooth gap in the maxillary posterior region received two locking-taper implants; 4.5 mm width, 8 mm length. Selection of intraoral (IOC) or extraoral cementation (EOC) using screwless titanium abutments was done randomly...
December 6, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29209578/effects-of-shinbuto-and-ninjinto-on-prostaglandin-e2-production-in-lipopolysaccharide-treated-human-gingival-fibroblasts
#18
Toshiaki Ara, Norio Sogawa
Previously, we revealed that several kampo medicines used for patients with excess and/or medium patterns (kakkonto (TJ-1), shosaikoto (TJ-9), hangeshashinto (TJ-14), and orento (TJ-120)) reduced prostaglandin (PG)E2 levels using LPS-treated human gingival fibroblasts (HGFs). Recently, we examined other kampo medicines used for patients with the deficiency pattern [bakumondoto (TJ-29), shinbuto (TJ-30), ninjinto (TJ-32), and hochuekkito (TJ-41)] and the herbs comprising shinbuto and ninjinto using the same experimental model...
2017: PeerJ
https://www.readbyqxmd.com/read/29209465/two-component-signal-transduction-systems-in-oral-bacteria
#19
REVIEW
Renata O Mattos-Graner, Margaret J Duncan
We present an overview of how members of the oral microbiota respond to their environment by regulating gene expression through two-component signal transduction systems (TCSs) to support conditions compatible with homeostasis in oral biofilms or drive the equilibrium toward dysbiosis in response to environmental changes. Using studies on the sub-gingival Gram-negative anaerobe Porphyromonas gingivalis and Gram-positive streptococci as examples, we focus on the molecular mechanisms involved in activation of TCS and species specificities of TCS regulons...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/29208784/impact-of-mouthwashes-on-antibacterial-activity-of-subjects-with-fixed-orthodontic-appliances-a-randomized-clinical-trial
#20
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
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