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Journal of Periodontal Research

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https://www.readbyqxmd.com/read/28332191/combined-application-of-er-yag-and-nd-yag-lasers-in-treatment-of-chronic-periodontitis-a-split-mouth-single-blind-randomized-controlled-trial
#1
M Sağlam, S Köseoğlu, I Taşdemir, H Erbak Yılmaz, L Savran, R Sütçü
BACKGROUND: The aim of the present study was to compare the effectiveness of combined Er:YAG and Nd:YAG laser therapy to that of scaling and root planing with hand instruments in non-surgical treatment of chronic periodontitis. MATERIAL AND METHODS: Twenty-five systemically healthy patients with chronic periodontitis were selected for this study. The quadrants were randomly allocated in a split-mouth design to either combined Er:YAG (160 mJ/pulse, 10 Hz) and Nd:YAG laser (100 mJ/pulse, 20 Hz) therapy (test group) or scaling and root planing alone (control group)...
March 23, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28321876/effects-of-glucose-concentration-on-osteogenic-differentiation-of-type-ii-diabetes-mellitus-rat-bone-marrow-derived-mesenchymal-stromal-cells-on-a-nano-scale-modified-titanium
#2
I Yamawaki, Y Taguchi, S Komasa, A Tanaka, M Umeda
BACKGROUND AND OBJECTIVE: Diabetes mellitus (DM) is a common disease worldwide. Patients with DM have an increased risk of losing their teeth compared with other individuals. Dental implants are a standard of care for treating partial or full edentulism, and various implant surface treatments have recently been developed to increase dental implant stability. However, some studies have reported that DM reduces osseointegration and the success rate of dental implants. The purpose of this study was to determine the effects of high glucose levels for hard tissue formation on a nano-scale modified titanium surface...
March 21, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28321852/active-matrix-metalloproteinase-8-and-periodontal-bacteria-depending-on-periodontal-status-in-patients-with-rheumatoid-arthritis
#3
A Kirchner, J Jäger, B Krohn-Grimberghe, S Patschan, T Kottmann, G Schmalz, R F Mausberg, R Haak, D Ziebolz
BACKGROUND AND OBJECTIVES: The aim of this clinical cross-sectional study was to determine the level of active matrix metalloproteinase-8 (aMMP-8) and periodontal pathogenic bacteria in gingival crevicular fluid in patients with rheumatoid arthritis (RA) with varying periodontal conditions. MATERIAL AND METHODS: In total, 103 patients with RA and 104 healthy controls (HC) were included. The assessment of periodontal status included periodontal probing depth, bleeding on probing and clinical attachment loss...
March 21, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28306142/the-effect-of-smoking-on-inflammatory-and-bone-remodeling-markers-in-gingival-crevicular-fluid-and-subgingival-microbiota-following-periodontal-therapy
#4
D F Bunaes, M Mustafa, H G Mohamed, S A Lie, K N Leknes
BACKGROUND AND OBJECTIVE: Periodontal health is mediated by suppressing microorganisms inducing a local inflammatory host response. Smoking may impair this process. This study compares gingival crevicular fluid levels of inflammatory and bone remodeling markers in heavy smokers and non-smokers following active and supportive periodontal therapy in patients with chronic periodontitis. MATERIAL AND METHODS: Gingival crevicular fluid and subgingival plaque were collected from the deepest periodontal pocket in 50 patients, 25 smokers and 25 non-smokers, at baseline (T0), following active (T1) and 12 mo of supportive periodontal therapy (T2)...
March 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28261803/difference-in-release-kinetics-of-unwashed-and-washed-platelet-released-supernatants-from-bone-substitute-materials-the-impact-of-platelet-preparation-modalities
#5
C Knoop, M Edelmayer, K Janjić, M Pensch, M B Fischer, R Gruber, H Agis
BACKGROUND AND OBJECTIVE: In regenerative dentistry, platelet preparations are applied to stimulate bone healing and periodontal regeneration. Here, we pursue a strategy where bone substitutes are used as carriers for platelet-released supernatants. The mitogenic capacity and release kinetics of loaded bone substitutes were assessed. MATERIAL AND METHODS: Platelet-released supernatants of washed platelets (washed PRS) and platelet-released supernatants of unwashed platelets (unwashed PRS) were lyophilized onto the bone substitutes deproteinized bovine bone mineral, hydroxyapatite and β-tricalcium phosphate...
March 6, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28261800/on-the-discovery-of-cementum
#6
REVIEW
B L Foster
Though cementum of the tooth root is critical for periodontal structure and tooth attachment and function, this tissue was not discovered and characterized on human teeth until a full century later than enamel and dentin. Early observations from the seventeenth to the nineteenth centuries by Marcello Malpighi, Antonie van Leeuwenhoek, Robert Blake, Jacques Tenon and Georges Cuvier founded a confusing and conflicting nomenclature that obscured the nature of cementum, often conflating it with bone. Advances in microscopy and histological procedures yielded the first detailed descriptions of human cementum in the 1830s by Jan Purkinje and Anders Retzius, who identified for the first time acellular and cellular types of cementum, and the resident cementocytes embedded in the latter...
March 6, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28256038/rosuvastatin-promotes-benefits-on-induced-periodontitis-in-hypertensive-rats
#7
M R Messora, G H Apolinário Vieira, J M T M M Vanderlei, V C Mariguela, P G Fernandes, D B Palioto, S L Scombatti de Souza, A B Novaes, F Furlaneto, M Taba
BACKGROUND AND OBJECTIVE: The potential benefits of statins in modulating periodontal disease is supported by in vitro and clinical studies showing statins can induce a lower expression of proinflammatory cytokines and matrix metalloproteinases. The aim of this study was to evaluate the effects of rosuvastatin (ST) on ligature-induced periodontitis in spontaneously hypertensive rats (SHR). MATERIAL AND METHODS: Fifty-four adult male rats were divided into three groups: SHR-C, SHR-L and SHR-L-ST (C, control; L, ligature groups)...
March 2, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28256034/platelet-factor-4-upregulates-matrix-metalloproteinase-1-production-in-gingival-fibroblasts
#8
M Javaid, J Bi, C Biddle, C M Tsai, L Häkkinen, H Kim
BACKGROUND AND OBJECTIVE: Periodontitis is a highly prevalent chronic inflammatory disease that causes tooth loss, morbidity and confers an increased risk for systemic disease. Tissue destruction during periodontitis is due in large part to collagen-degrading matrix metalloproteinases (MMPs) released by resident cells of the periodontium in response to proinflammatory cytokines. Platelets are immune-competent blood cells with a newly recognized role in chronic inflammation; however, their role in the pathogenesis of periodontitis is undefined...
March 2, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28256004/vitamin-d-binding-protein-expression-in-healthy-tooth-and-periodontium-an-experimental-study-both-in-monkeys-in-vivo-and-in-humans-in-vitro
#9
W Li, W Zhu, J Hou, H Meng
BACKGROUND AND OBJECTIVE: Vitamin D-binding protein (DBP) is a highly expressed plasma protein with many important functions, including transport of vitamin D metabolites, sequestration of actin, control of bone metabolism and modulation of immune and inflammatory responses. Previous results of our study indicated an association between DBP and periodontitis. We hypothesized that periodontium might be another source of DBP in gingival crevicular fluid other than serum. MATERIAL AND METHODS: DBP expression was examined in dental and periodontal tissues of monkeys by immunohistochemistry, and in primary cells isolated from human dental and periodontal tissues by reverse transcription plus the polymerase chain reaction and immunocytochemistry...
March 2, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28233905/changes-in-apolipoprotein-b-and-oxidized-low-density-lipoprotein-levels-in-gingival-crevicular-fluids-as-a-result-of-periodontal-tissue-conditions
#10
M Ishizuka, R Kato, Y Moriya, E Noguchi, Y Koide, S Inoue, H Itabe, M Yamamoto
BACKGROUND AND OBJECTIVE: Periodontal disease is a chronic inflammatory disease caused by bacterial infection that can lead to tooth loss. Gingival crevicular fluid can be collected easily and noninvasively. We previously discovered the presence of apolipoprotein B (apoB), the main constituent of low-density lipoprotein, and oxidized low-density lipoprotein (oxLDL) in the gingival crevicular fluid of healthy subjects. In this study, we investigated whether periodontal conditions affect the levels of apoB and oxLDL in gingival crevicular fluid...
February 24, 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
#11
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)...
February 18, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28198555/involvement-of-cd147-in-alveolar-bone-remodeling-and-soft-tissue-degradation-in-experimental-periodontitis
#12
D Yang, R Liu, L Liu, H Liao, C Wang, Z Cao
BACKGROUND AND OBJECTIVE: The objective of this study was to investigate the possible roles of clusters of differentiation 147 (CD147) in bone resorption and mineralization through the bone markers of bone sialoprotein, osteocalcin, osteopontin and alkaline phosphatase (ALP), trabecular structure of alveolar bone and number of osteoclasts. We also investigated the effects of CD147 on inflammation and collagen breakdown. MATERIAL AND METHODS: Twenty-eight male Wistar rats were randomly divided into four groups of seven animals each: healthy group, periodontitis group, periodontitis + saline group and periodontitis + anti-CD147 groups...
February 15, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28198538/role-of-pin1-on-in-vivo-periodontal-tissue-and-in-vitro-cells
#13
K-H Park, E-H Cho, W-J Bae, H-S Kim, H-C Lim, Y-D Park, M-O Lee, E-S Cho, E-C Kim
BACKGROUND: Although expression of peptidyl-prolyl cis/trans isomerase NIMA-interacting 1 (PIN1) was reported in bone tissue, the precise role of PIN1 in periodontal tissue and cells remain unclear. MATERIAL & METHODS: To elucidate the roles of PIN1 in periodontal tissue, its expression in periodontal tissue and cells, and effects on in vitro 4 osteoblast differentiation and the underlying signaling mechanisms were evaluated. RESULTS: PIN1 was expressed in mouse periodontal tissues including periodontal ligament cells (PDLCs), cementoblasts and osteoblasts at the developing root formation stage (postnatal, PN14) and functional stage of tooth (PN28)...
February 15, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177531/recruitment-of-bone-marrow-derived-cells-to-the-periodontal-ligament-via-the-stromal-cell-derived-factor-1-c-x-c-chemokine-receptor-type-4-axis
#14
M Kaku, M Kitami, J M Rosales Rocabado, T Ida, Y Akiba, K Uoshima
BACKGROUND/OBJECTIVES: The periodontal ligament (PDL) is a non-mineralized connective tissue that exists between the alveolar bone and root surface cementum and plays important roles in tooth function. The PDL harbors a remarkable reserve of multipotent stem cells, which maintain various types of cells. However, the sources of these stem cells, other than their developmental origin, are not well understood. MATERIAL AND METHODS: To elucidate the recruitment of bone marrow (BM)-derived stem cells in the PDL, green fluorescent protein (GFP)-expressing BM-derived cells were transplanted into the femoral BM of immunodeficient rats, and the distribution and expression of stem cell markers in the PDL were analyzed in vivo...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177135/unveiling-and-initial-characterization-of-neural-crest-like-cells-in-mesenchymal-populations-from-the-human-periodontal-ligament
#15
L Ramírez-García, R Cevallos, K Gazarian
OBJECTIVE: To identify cells with neural crest properties in mesenchymal populations isolated from human periodontal ligament. BACKGROUND: Evidence from tracing experiments on animal embryos revealed proof that dental tissues are among the homing sites of craniofacial neural crest migratory cells. In humans, similar migratory cells were found in early embryos, but whether these cells are progeny of oral multipotent stem cells needs to be confirmed. Searching for the cells with neural crest characteristics in periodontal ligament mesenchymal populations can lead to a solution to the problem...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177133/dietary-supplementation-with-low-dose-omega-3-fatty-acids-reduces-salivary-tumor-necrosis-factor-%C3%AE-levels-in-patients-with-chronic-periodontitis-a-randomized-controlled-clinical-study
#16
I Keskiner, I Saygun, V Bal, M Serdar, A Kantarci
BACKGROUND AND OBJECTIVE: Recent studies have demonstrated the beneficial effects of omega-3 polyunsaturated fatty acids (PUFAs) on physiological processes and on a variety of chronic inflammatory diseases, including periodontal diseases. In this study, we evaluated the impact of omega-3 PUFAs in conjunction with scaling and root planing (SRP) on salivary markers in patients with chronic periodontitis. MATERIAL AND METHODS: Thirty systemically healthy subjects with chronic periodontitis were enrolled and randomly allocated into two groups...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177132/in-vitro-evaluation-of-the-human-gingival-fibroblast-gingival-mesenchymal-stem-cell-dynamics-through-perforated-guided-tissue-membranes-cell-migration-proliferation-and-membrane-stiffness-assay
#17
A Y Gamal, N N Al-Berry, A A Hassan, L A Rashed, V J Iacono
BACKGROUND: Migration of gingival fibroblasts/gingival mesenchymal stem cells through macro-perforated barrier membranes may allow them to participate positively in periodontal regeneration. The optimal guided tissue membrane perforation diameter that could favor maximum cell migration into the defect area and at the same time act as an occlusive barrier for gingival epithelium and its associated gingival extracellular matrix component is not yet identified. MATERIAL AND METHODS: Cultured human gingival fibroblasts/gingival mesenchymal stem cells were placed in the upper chambers of 12-well collagen-coated polytetrafluoroethylene transwells, which were manually perforated with 0...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177125/association-of-oral-microbiome-with-type-2-diabetes-risk
#18
J Long, Q Cai, M Steinwandel, M K Hargreaves, S R Bordenstein, W J Blot, W Zheng, X O Shu
BACKGROUND AND OBJECTIVE: The oral microbiome may help to maintain systemic health, including how it affects blood glucose levels; however, direct evidence linking the oral microbiome with diabetes is lacking. MATERIAL AND METHODS: We compared the oral microbiome profiles of 98 participants with incident diabetes, 99 obese non-diabetics and 97 normal weight non-diabetics, via deep sequencing of the 16S rRNA gene. RESULTS: We found that the phylum Actinobacteria was present significantly less abundant among patients with diabetes than among the controls (p = 3...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28177120/impact-of-periodontal-disease-on-quality-of-life-a-systematic-review
#19
REVIEW
M C Ferreira, A C Dias-Pereira, L S Branco-de-Almeida, C C Martins, S M Paiva
The diagnosis of periodontal disease is commonly based on objective evaluations of the patient's medical/dental history as well as clinical and radiographic examinations. However, periodontal disease should also be evaluated subjectively through measures that quantify its impact on oral health-related quality of life. The aim of this study was to evaluate the impact of periodontal disease on quality of life among adolescents, adults and older adults. A systematic search of the literature was performed for scientific articles published up to July 2015 using electronic databases and a manual search...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/27282938/vaccination-with-recombinant-rgpa-peptide-protects-against-porphyromonas-gingivalis-induced-bone-loss
#20
A Wilensky, J Potempa, Y Houri-Haddad, L Shapira
OBJECTIVE: Following Porphyromonas gingivalis infection in mice, the efficacy of vaccination by recombinant and native RgpA in modulating the early local anti-inflammatory and immune responses and periodontal bone loss were examined. MATERIAL AND METHODS: Using the subcutaneous chamber model, exudates were analyzed for cytokines after treatment with native RgpA and adjuvant (test), or adjuvant and saline alone (controls). Mice were also immunized with recombinant RgpA after being orally infected with P...
April 2017: Journal of Periodontal Research
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