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Journal of Periodontal Research

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https://www.readbyqxmd.com/read/28898426/differences-between-inflammatory-and-catabolic-mediators-of-peri-implantitis-and-periodontitis-lesions-following-initial-mechanical-therapy-an-exploratory-study
#1
M Ghighi, A Llorens, B Baroukh, C Chaussain, P Bouchard, M Gosset
BACKGROUND AND OBJECTIVE: The aim of this study was to analyze the differences in inflammatory and catabolic mediators expressed in peri-implantitis compared to periodontitis lesions after non-surgical therapy. Peri-implantitis is associated with a faster rate of bone loss when compared with periodontitis, and peri-implant non-surgical therapy is ineffective to cure peri-implantitis. This may be due to persistent inflammation in peri-implantitis tissues after initial mechanical treatment...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28898420/characterization-of-hyperbranched-core-multishell-nanocarriers-as-an-innovative-drug-delivery-system-for-the-application-at-the-oral-mucosa
#2
J Jager, K Obst, S B Lohan, J Viktorov, S Staufenbiel, H Renz, M Unbehauen, R Haag, S Hedtrich, C Teutloff, M C Meinke, K Danker, H Dommisch
BACKGROUND AND OBJECTIVES: In the oral cavity, the mucosal tissues may develop a number of different pathological conditions, such as inflammatory diseases (gingivitis, periodontitis) and autoimmune disorders (eg, oral lichen planus) that require therapy. The application of topical drugs is one common therapeutic approach. However, their efficacy is limited. Dilution effects due to saliva hinder the adherence and the penetration of drug formulations. Therefore, the bioavailability of oral topical drugs is insufficient, and patients may suffer from disease over years, if not life-long...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28898418/matrix-metalloproteinase-8-levels-in-periodontal-disease-patients-a-systematic-review
#3
REVIEW
E F de Morais, J C Pinheiro, R B Leite, P P A Santos, C A G Barboza, R A Freitas
Periodontal disease is characterized as a disorder of the oral microbiota resulting in an immune response which, in turn, leads to the destruction of periodontal tissue. Matrix metalloproteinase-8 (MMP-8) has been reported as the major metalloproteinase involved in periodontal disease, being present at high levels in gingival crevicular fluid and salivary fluid (SF). The aim of this systematic review was to evaluate the scientific literature regarding the expression of MMP-8 in gingival crevicular fluid and SF in patients with periodontal disease, analyzing its validity as a possible biomarker in the diagnosis of periodontal disease...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28872188/does-the-adjunctive-use-of-statins-provide-additional-benefits-to-nonsurgical-periodontal-treatment-a-systematic-review-and-meta-analysis
#4
REVIEW
L M B Ambrósio, E S Rovai, D I Sendyk, M Holzhausen, C M Pannuti
Adjunctive therapeutic agents may be used to improve the response to nonsurgical periodontal therapy. Local delivery of statins (simvastatin, artovastatin and rosuvastatin) is a promising adjunct to scaling and root planing (SRP). Thus, the aim of this review is to evaluate if adjunctive local delivery of statins is more effective than SRP alone. Randomized clinical trials that presented a test group evaluating local delivery of statins as adjuncts in healthy, diabetic and smoking patients were included. Medline and the Cochrane library database were searched up to November 2016...
September 5, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28872184/role-of-toll-like-receptor-2-in-inflammation-and-alveolar-bone-loss-in-experimental-peri-implantitis-versus-periodontitis
#5
X Yu, Y Hu, M Freire, P Yu, T Kawai, X Han
BACKGROUND AND OBJECTIVE: Peri-implantitis and periodontitis are different entities in immune characteristics even though they share similar features in clinical and radiologic signs. Toll-like receptor 2 (TLR-2), one of the key pathogen-recognition receptors in the innate immune system, plays an important role in the progression of periodontitis. However, the role of TLR-2 in peri-implantitis remains unclear. The objective of this study was to investigate the role of TLR-2 in inflammation and alveolar bone loss in a murine model of ligature-induced peri-implantitis and to compare it with ligature-induced periodontitis...
September 5, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28868669/attributes-of-bio-oss-%C3%A2-and-moa-bone-%C3%A2-graft-materials-in-a-pilot-study-using-the-sheep-maxillary-sinus-model
#6
M M Smith, W J Duncan, D E Coates
BACKGROUND AND OBJECTIVE: The aim of this pilot study was to characterize surface morphology and to evaluate resorption and osseous healing of two deproteinated bovine bone graft materials after sinus grafting in a large animal model. MATERIAL AND METHODS: Surfaces of a novel particulate bovine bone graft, Moa-Bone(®) were compared with Bio-Oss(®) using scanning electron microscopy. Six sheep then had maxillary sinus grafting bilaterally, covered with BioGide(®) ...
September 4, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28868611/simvastatin-exerts-antiproliferative-and-differentiating-effects-on-mg63-osteoblast-like-cells-morphological-and-immunocytochemical-study
#7
A Magan-Fernandez, J E Fernández-Barbero, F O' Valle, R Ortiz, P Galindo-Moreno, F Mesa
BACKGROUND AND OBJECTIVE: Current evidence suggests that statins exert an anabolic effect on bone and may therefore impact on osteogenic differentiation and proliferation. These effects can be useful for their use in guided bone regeneration. The objective of this study was to determine the in vitro effects of simvastatin on the differentiation and proliferation of MG63 human osteoblast tumor cells. MATERIAL AND METHODS: MG63 human osteosarcoma cells were cultured in the presence of simvastatin or solvent alone for 72 hours, and their proliferation was assessed by MTT assay...
September 4, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28862325/platelet-rich-fibrin-aspirin-complex-promotes-alveolar-bone-regeneration-in-periodontal-defect-in-rats
#8
J Du, S Mei, L Guo, Y Su, H Wang, Y Liu, Z Zhao, S Wang, Y Liu
BACKGROUND AND OBJECTIVES: The efficacy and outcomes of aspirin in local defects and the use of platelet-rich fibrin (PRF) in periodontal defects were investigated. Whether the PRF/aspirin complex is a suitable scaffold and delivery system to carry sustained-release aspirin/salicylic acid to promote periodontal bone regeneration was determined. MATERIAL AND METHODS: PRF and PRF/aspirin complex were prepared. The concentrations of aspirin/salicylic acid released from the PRF/aspirin complex were calculated at 37°C...
September 1, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28857167/tumor-necrosis-factor-alpha-inhibits-osteogenic-differentiation-of-pre-osteoblasts-by-downregulation-of-ephb4-signaling-via-activated-nuclear-factor-kappab-signaling-pathway
#9
L M Wang, N Zhao, J Zhang, Q F Sun, C Z Yang, P S Yang
BACKGROUND AND OBJECTIVE: The majority of experiments show that tumor necrosis factor-alpha (TNF-α) inhibits osteogenic differentiation of mesenchymal stem cells and pre-osteoblasts by activated nuclear factor-kappaB (NF-κB) signaling. However, the underlying mechanisms by which NF-κB signaling inhibits osteogenic differentiation are not fully understood. The aim of the present study was to investigate whether EphB4 signaling inhibition mediates the effects of TNF-α-activated NF-κB signaling on osteogenic differentiation of pre-osteoblasts...
August 31, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28795395/modulation-of-periodontitis-progression-using-ph-responsive-nanosphere-encapsulating-metronidazole-or-n-phenacylthialzolium-bromide
#10
J-H Lin, F Feng, M-C Yu, C-H Wang, P-C Chang
BACKGROUND AND OBJECTIVE: This study aimed to develop pH-responsive polylactide-glycolic acid co-polymer and chitosan (PLGA/chitosan) nanosphere as an inflammation-responsive vehicle and evaluate the potential of the nanosphere encapsulating metronidazole, an antibiotic, and N-phenacylthiazolium bromide (PTB), a host modulator, for treating periodontitis. MATERIAL AND METHODS: PLGA/chitosan nanospheres were fabricated using oil-in-water emulsion method. Experimental periodontitis was induced on the rat maxillae, and the sites were randomly allocated to four treatment categories, including periodontitis alone (PR), periodontitis with nanospheres alone, nanospheres encapsulating metronidazole (MT) and nanospheres encapsulating PTB (PB)...
August 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28766712/can-degradation-products-released-from-dental-implants-affect-peri-implant-tissues
#11
REVIEW
M Noronha Oliveira, W V H Schunemann, M T Mathew, B Henriques, R S Magini, W Teughels, J C M Souza
This study aimed to assess the literature available on the effects, on peri-implant tissues, of degradation products released from dental implants as a consequence of therapeutic treatment for peri-implantitis and/or of wear-corrosion of titanium. A literature review of the PubMed medline database was performed up to December 31, 2016. The following search terms were used: "titanium wear and dental implant"; "titanium corrosion and dental implant"; "bio-tribocorrosion"; "peri-implantitis"; "treatment of peri-implantitis"; "titanium particles release and dental implant"; and "titanium ion release and dental implant"...
August 2, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28707424/a-reproducible-microcosm-biofilm-model-of-subgingival-microbial-communities
#12
M Fernandez Y Mostajo, R A M Exterkate, M J Buijs, W Beertsen, G A van der Weijden, E Zaura, W Crielaard
OBJECTIVE: To develop a reproducible subgingival microcosm biofilm model. MATERIAL AND METHODS: Subgingival plaque samples were collected from four deep pockets (probing pocket depth ≥6 mm) in each of seven patients with periodontitis and from shallow pockets (probing pocket depth ≤3 mm) in two periodontally healthy donors. An active attachment model and a peptone medium (Thompson et. al., Appl Environ Microbiol 2015;81:8307-8314) supplemented with 30% serum was used...
July 14, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28691752/mineral-trioxide-aggregate-improves-healing-response-of-periodontal-tissue-to-injury-in-mice
#13
I Vidovic Zdrilic, I O de Azevedo Queiroz, B G Matthews, J E Gomes-Filho, M Mina, I Kalajzic
BACKGROUND AND OBJECTIVE: Mineral trioxide aggregate (MTA) is a biomaterial used in endodontic procedures as it exerts beneficial effects on regenerative processes. In this study, we evaluate the effect of MTA on healing of periodontal ligament (PDL) and surrounding tissue, following injury, in a transgenic mouse model and on the differentiation of murine mesenchymal progenitor cells in vitro. MATERIAL AND METHODS: We used an inducible Cre-loxP in vivo fate mapping approach to examine the effects of MTA on the contributions of descendants of cells expressing the αSMA-CreERT2 transgene (SMA9(+) ) to the PDL and alveolar bone after experimental injury to the root furcation on the maxillary first molars...
July 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28643938/oral-application-of-a-periodontal-pathogen-impacts-serpine1-expression-and-pancreatic-islet-architecture-in-prediabetes
#14
V Ilievski, U G Bhat, S Suleiman-Ata, B A Bauer, P T Toth, S T Olson, T G Unterman, K Watanabe
BACKGROUND AND OBJECTIVES: Epidemiological studies suggest a close association between periodontitis and prediabetes/insulin resistance (IR) but whether periodontitis causes prediabetes in humans is not known. Using various animal models, we have recently established that periodontitis can be an initiator of prediabetes, which is characterized by glucose intolerance, hyperinsulinemia and IR. In addition, our in vitro studies indicated that Porphyromonas gingivalis (Pg) induced insulin secretion in MIN6 β cells and this induction was in part SerpinE1 (plasminogen activator inhibitor 1, PAI1) dependent...
June 23, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28643937/proinflammatory-effects-and-mechanisms-of-calprotectin-on-human-gingival-fibroblasts
#15
H Gao, J Hou, H Meng, X Zhang, Y Zheng, L Peng
BACKGROUND AND OBJECTIVE: Calprotectin (S100A8/A9) is a heterodimer of S100A8 and S100A9 and is associated with multiple inflammatory diseases, including Crohn's disease, rheumatoid arthritis and periodontitis. Levels of calprotectin are elevated in the gingival crevicular fluid of patients with periodontitis; however, the effects of calprotectin on human gingival fibroblasts (HGFs) remain unknown. This study investigated the proinflammatory activity of calprotectin on HGFs and the functional receptors and signaling pathways engaged by calprotectin...
June 23, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28393367/increasing-popularity-of-waterpipe-tobacco-smoking-and-electronic-cigarette-use-implications-for-oral-healthcare
#16
REVIEW
C P Ramôa, T Eissenberg, S E Sahingur
Cigarette smoking increases the risk of developing several systemic conditions including cancer, cardiovascular and pulmonary diseases. Cigarette smoking is also detrimental to oral health as it increases the incidence and severity of oral cancer, periodontal diseases and peri-implantitis, as well as impacting negatively on the dental patients' response to therapy. Therefore, consideration of smoking behavior and recommendation of smoking cessation are important parts of dental treatment planning. However, cigarettes are no longer the most popular form of tobacco use among adolescents in the United States and globally...
October 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28213930/antibiotic-administration-alleviates-the-aggravating-effect-of-orthodontic-force-on-ligature-induced-experimental-periodontitis-bone-loss-in-mice
#17
J Shi, Z Liu, T Kawai, Y Zhou, X Han
BACKGROUND AND OBJECTIVES: It is recognized that orthodontic force (OF) has an aggravating effect on the progression of destructive periodontitis if periodontitis have not been well controlled. However, the underlying mechanism is not completely clear. This study was to investigate the effect of antibiotic administration on OF-aggravated, ligature-induced experimental periodontitis in mice. MATERIAL AND METHODS: C57BL/6 mice (male, 8 wk old) were divided into three groups (n = 8)...
August 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28631313/salivary-gingival-crevicular-fluid-and-serum-levels-of-ghrelin-and-chemerin-in-patients-with-periodontitis-and-overweight
#18
H F R Jentsch, N Arnold, V Richter, J Deschner, T Kantyka, S Eick
BACKGROUND AND OBJECTIVE: Nutrition and body weight are modifying factors for periodontitis. The purpose of this study was to quantify two molecules (ghrelin and chemerin), released in association with food intake and obesity, in periodontally healthy and diseased individuals with respect to different body mass categories. MATERIAL AND METHODS: The two main groups (patients with chronic periodontitis and periodontally healthy/gingivitis volunteers) were subdivided into groups of subjects with normal weight [body mass index (BMI) <25] and groups of overweight/obese subjects (BMI ≥25)...
June 20, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28631261/distinct-post-translational-features-of-type-i-collagen-are-conserved-in-mouse-and-human-periodontal-ligament
#19
D M Hudson, M Garibov, D R Dixon, T Popowics, D R Eyre
BACKGROUND AND OBJECTIVE: Specifics of the biochemical pathways that modulate collagen cross-links in the periodontal ligament (PDL) are not fully defined. Better knowledge of the collagen post-translational modifications that give PDL its distinct tissue properties is needed to understand the pathogenic mechanisms of human PDL destruction in periodontal disease. In this study, the post-translational phenotypes of human and mouse PDL type I collagen were surveyed using mass spectrometry...
June 20, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28626895/khat-chewing-habit-produces-a-significant-adverse-effect-on%C3%A2-periodontal-oral-health-a-systematic-review-and-meta-analysis
#20
REVIEW
M S Al-Akhali, E A Al-Moraissi
Although there is a general agreement that a khat chewing habit produces clinicopathological changes in the oral mucosa. However there is no reliable evidence of the effects of a khat chewing habit on the periodontal tissues. Thus, authors aimed to investigate the influence of khat chewing habits on periodontal, oral health, by comparing khat chewers to non-chewers in respect of gingival recession, periodontal pocketing depth and loss of attachment. A systematic review and meta-analysis were conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
June 18, 2017: Journal of Periodontal Research
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