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Journal of Periodontal Research

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https://www.readbyqxmd.com/read/29139559/associations-among-tooth-loss-systemic-inflammation-and-antibody-titers-to-periodontal-pathogens-in-japanese-patients-with-cardiovascular-disease
#1
N Aoyama, J-I Suzuki, N Kobayashi, T Hanatani, N Ashigaki, A Yoshida, Y Shiheido, H Sato, M Minabe, Y Izumi, M Isobe
BACKGROUND AND OBJECTIVE: It is well known that there is a strong relationship between periodontitis and cardiovascular disease (CVD). Tooth loss reflects an end-stage condition of oral diseases, such as periodontitis. Infection with specific periodontal pathogens is known as a possible factor that influences development of CVD. The aim of this study was to assess the relationship between the number of residual teeth and systemic inflammatory conditions in patients with CVD. MATERIAL AND METHODS: We divided 364 patients with CVD into four groups, according to the number of residual teeth: (i) ≥20 teeth; (ii) 10-19 teeth; (iii) 1-9 teeth; and (iv) edentulous...
November 15, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29110296/the-combined-and-individual-impact-of-diabetes-and-smoking-on-key-subgingival-periodontal-pathogens-in-patients-with-chronic-periodontitis
#2
C R Joaquim, T S Miranda, L M Marins, H D P Silva, M Feres, L C Figueiredo, P M Duarte
BACKGROUND AND OBJECTIVE: Comprehension of the similarities and differences in the composition of the subgingival microbiota of patients with diabetes mellitus (DM), smokers or smokers with DM is an important step in developing therapies specific for these groups at risk for periodontitis. Therefore, the aim of this study was to compare the combined and individual effects of DM and smoking on the levels and prevalence of key subgingival periodontal pathogens in patients with chronic periodontitis...
November 6, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29105779/moderate-to-long-term-therapeutic-outcomes-of-treated-aggressive-periodontitis-patients-without-regular-supportive-care
#3
V Goh, D Nihalani, K W S Yeung, E F Corbet, W K Leung
BACKGROUND AND OBJECTIVE: Risk for deterioration in treated aggressive periodontitis (AgP) individuals remained unclear. This retrospective cohort study investigated 7-26 years of periodontal outcomes and oral health-related quality of life (OHRQoL) of young adults with advanced periodontitis. MATERIAL AND METHODS: Eighty-nine previously treated patients with AgP were re-examined. Clinical and radiographic parameters before treatment discontinuation and at re-examination were compared...
November 5, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29105764/genetic-polymorphisms-and-periodontal-disease-in-populations-of-african-descent-a-review
#4
REVIEW
P F Gonçalves, T H Harris, T Elmariah, I Aukhil, M R Wallace, L M Shaddox
Aggressive periodontitis is a rare but rapidly progressing form of periodontal disease that usually affects otherwise systemically healthy individuals, at a young age. It usually affects first molars and incisors, which are usually lost if treatment is not properly and early rendered. Although of low prevalence, it affects individuals of African descent at a higher prevalence, and usually multiple members within the same family. Several studies have been performed in the attempt to evaluate specific single nucleotide polymorphisms (SNPs) that could be associated with this disease...
November 5, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29086417/synergistic-effect-of-photodynamic-therapy-and-alendronate-on-alveolar-bone-loss-in-rats-with-ligature-induced-periodontitis
#5
F Camacho-Alonso, R S Davia-Peña, C Vilaplana-Vivo, M R Tudela-Mulero, J J Merino, Y Martínez-Beneyto
BACKGROUND AND OBJECTIVE: Photodynamic therapy (PDT) and antiresorptive drugs, such as alendronate (ALN), have been shown to reduce alveolar bone loss. The aim of this study was to evaluate the possible synergic effects of combining PDT and ALN on bone loss in periodontitis in rats. MATERIAL AND METHODS: Periodontitis was induced by ligature in 60 Wistar rats randomized into the following groups: control (Group 1); PDT (Group 2); ALN 0.01 mg/kg (Group 3); ALN 0...
October 31, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29086411/effects-of-rosuvastatin-on-inducible-nitric-oxide-synthase-in-rats-with-hyperlipidaemia-and-periodontitis
#6
F Y Kırzıoğlu, Ö Özmen, B Doğan, M T Bulut, Ö Fentoğlu, M Özdem
BACKGROUND AND OBJECTIVE: Nitric oxide is a free radical that is synthesized from l-arginine by nitric oxide synthase (NOS). The level of inducible NOS (iNOS) in gingiva with periodontitis is higher than that in healthy gingiva. The aim of this study was to evaluate the effects of rosuvastatin administration on alveolar bone loss (ABL) and iNOS(+) cell counts in gingival tissues in rats with ligature-induced experimental periodontitis with/without hyperlipidaemia. MATERIAL AND METHODS: The rats were randomly divided into seven groups: Hy (cholesterol-added diet/water administration); HyP (cholesterol-added diet/periodontitis/water administration); HyPR (cholesterol-added diet/periodontitis/rosuvastatin administration); P (standard diet/periodontitis/water administration); PR (standard diet/periodontitis/rosuvastatin administration); C (standard diet/water administration); and R (standard diet/rosuvastatin administration)...
October 31, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29080226/temporal-expression-of-interleukin-22-interleukin-22-receptor-1-and-interleukin-22-binding-protein-during-experimental-periodontitis-in-rats
#7
S Pan, D Yang, J Zhang, Z Zhang, H Zhang, X Liu, C Li
BACKGROUND AND OBJECTIVE: Interleukin-22 (IL-22), mainly produced by CD4+ T-helper subtypes and innate lymphoid cells at barrier surfaces, is found to involve in several diseases, including diabetes, rheumatoid arthritis, peri-implantitis and chronic rhinosinusitis with nasal polyps. The purpose of this study was to investigate histological changes and the levels of interleukin-22, interleukin-22 receptor 1 (IL-22R1) and interleukin-22-binding protein (IL-22BP) in experimental periodontitis...
October 28, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29067681/chitosan-triclosan-particles-modulate-inflammatory-signaling-in-gingival-fibroblasts
#8
L Pavez, N Tobar, C Chacón, R Arancibia, C Martínez, C Tapia, A Pastor, M González, J Martínez, P C Smith
BACKGROUND AND OBJECTIVES: An important goal of periodontal therapy is the modulation of the inflammatory response. To this end, several pharmacological agents have been evaluated. Triclosan corresponds to an antibacterial and anti-inflammatory agent currently used in periodontal therapy. Chitosan is a natural polymer that may act as a drug delivery agent and exerts antibacterial and anti-inflammatory activities. Therefore, an association between both molecules might be useful to prevent inflammation and tissue destruction in periodontal tissues...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29063626/polydopamine-deposition-with-anodic-oxidation-for-better-connective-tissue-attachment-to-transmucosal-implants
#9
F Teng, H Chen, Y Xu, Y Liu, G Ou
BACKGROUND AND OBJECTIVE: Nowadays, most designs for the transmucosal surface of implants are machined-smooth. However, connective tissue adhered to the smooth surface of an implant has poor mechanical resistance, which can render separation of tissue from the implant interface and induce epithelial downgrowth. Modification of the transmucosal surface of implants, which can help form a good seal of connective tissue, is therefore desired. We hypothesized that anodic oxidation (AO) and polydopamine (PD) deposition could be used to enhance the attachment between an implant and peri-implant connective tissue...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29063603/effects-of-paraoxonase-1-on-the-cytodifferentiation-and-mineralization-of-periodontal-ligament-cells
#10
R Masumoto, J Kitagaki, M Matsumoto, S Miyauchi, C Fujihara, M Yamashita, S Yamada, M Kitamura, S Murakami
BACKGROUND AND OBJECTIVE: Single nucleotide polymorphisms (SNPs) of paraoxonase 1 (PON1) are known to be associated with the pathogenesis of osteoporosis and periodontitis. However, the effects of PON1 on the osteoblastic differentiation of periodontal ligament (PDL) cells are unclear. In this study, we examined the effects of PON1 on the osteoblastic differentiation of PDL cells, and analysed the role of PON1 SNPs on the pathogenesis of aggressive periodontitis (AgP) in the Japanese population...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29063599/observation-and-determination-of-periodontal-tissue-profile-using-optical-coherence-tomography
#11
S Kakizaki, A Aoki, M Tsubokawa, T Lin, K Mizutani, G Koshy, A Sadr, S Oda, Y Sumi, Y Izumi
BACKGROUND AND OBJECTIVE: Diagnosis is a crucial step in periodontal treatment. The aim of this study was to evaluate the effectiveness of optical coherence tomography (OCT) for observation and determination of periodontal tissue profiles in vivo. MATERIAL AND METHODS: In experiment 1, refractive indices of purified water, porcine gingiva and human gingiva at 1330 nm were determined for the analysis of OCT images of periodontal tissues. In experiment 2, OCT examination was performed in the midlabial apico-coronal plane of mandibular anteriors in 30 Asian volunteers with healthy gingiva...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29063586/protein-expression-during-early-stages-of-bone-regeneration-under-hydrophobic-and-hydrophilic-titanium-domes-a-pilot-study
#12
E Calciolari, N Mardas, X Dereka, A K Anagnostopoulos, G T Tsangaris, N Donos
BACKGROUND AND OBJECTIVES: There is significant evidence that, during the early stages of osseointegration, moderately rough hydrophilic (SLActive) surfaces can accelerate osteogenesis and increase bone-to-implant contact in comparison to hydrophobic (SLA) surfaces. However, very little is known regarding the molecular mechanisms behind the influence that surface chemistry modifications to increase hydrophilicity determine on bone healing. The aim of this study was to describe for the first time the proteins and related signalling pathways expressed during early osseous healing stages under SLA and SLActive titanium domes for guided bone regeneration...
October 24, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044575/investigation-of-the-effect-of-astaxanthin-on-alveolar-bone-loss-in-experimental-periodontitis
#13
H Balci Yuce, A Lektemur Alpan, F Gevrek, H Toker
BACKGROUND AND OBJECTIVE: Astaxanthin is a keto-carotenoid that has a strong antioxidant effect. The purpose of this study was to evaluate the effects of astaxanthin on alveolar bone loss and histopathological changes in ligature-induced periodontitis in rats. MATERIAL AND METHODS: Wistar rats were divided into four experimental groups: non-ligated (C, n = 6); ligature only (L, n = 6); ligature and astaxanthin (1 mg/kg/day astaxanthin, AS1 group, n = 8); ligature and astaxanthin (5 mg/kg/day astaxanthin, AS5 group, n = 8)...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044530/gingival-tissue-an-extrasynovial-source-of-malondialdehyde-acetaldehyde-adducts-citrullinated-and-carbamylated-proteins
#14
R Bright, G M Thiele, J Manavis, T R Mikuls, J B Payne, P M Bartold
BACKGROUND AND OBJECTIVE: Postranslational modification of proteins can lead to the production of autoantibodies and loss of immune tolerance. This process has been hypothesised to be a critical factor in the pathogenesis of rheumatoid arthritis. The objective of this study was to demonstrate that inflamed human gingival tissue provides an extrasynovial source of malondialdehyde-acetaldehyde adducts, citrullinated and carbamylated proteins all of which are considered to be linked to the development of rheumatoid arthritis...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044527/effect-of-the-combined-use-of-enamel-matrix-derivative-and-atelocollagen-sponge-scaffold-on-osteoblastic-differentiation-of-mouse-induced-pluripotent-stem-cells-in-vitro
#15
Y Hisanaga, E Suzuki, H Aoki, M Sato, A Saito, A Saito, T Azuma
BACKGROUND AND OBJECTIVE: Induced pluripotent stem cells (iPSCs) are a candidate cell source in periodontal regenerative therapy. Enamel matrix derivative (EMD) has been shown to regenerate periodontal tissues, and atelocollagen sponge (ACS) is considered a suitable scaffold or carrier for growth factors. This study aimed to investigate the effect of combined use of EMD and an ACS scaffold on cell behaviors and differentiation of mouse iPSCs (miPSCs) in vitro. MATERIAL AND METHODS: Following embryonic body formation from miPSCs, dissociated cells (miPS-EB-derived cells) were seeded onto ACS with or without EMD, and cultured in osteoblast differentiation medium...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044525/susceptibility-of-different-mouse-strains-to-peri-implantitis
#16
S Hiyari, A Naghibi, R Wong, R Sadreshkevary, L Yi-Ling, S Tetradis, P M Camargo, F Q Pirih
BACKGROUND AND OBJECTIVE: Peri-implantitis (PI) is an inflammatory condition that affects the tissues surrounding dental implants. Although the pathogenesis of PI is not fully understood, evidence suggests that the etiology is multifactorial and may include a genetic component. The aim of this study was to investigate the role of genetics in the development of peri-implantitis. MATERIAL AND METHODS: Four-week-old C57BL/6J, C3H/HeJ and A/J male mice had their left maxillary molars extracted...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044524/effects-of-loss-of-occlusal-contact-on-the-expression-of-matrix-metalloproteinase-2-membrane-type-1-mmp-tissue-inhibitor-of-the-mmp-2-eruption-rate-organization-and-resistance-of-collagen-fibers-of-the-rat-incisor-periodontal-ligament
#17
N F Omar, J R Gomes, J S Neves, P D Novaes
BACKGROUND AND OBJECTIVE: This study investigated the effect of occlusal contact loss (induced by tooth shortening), on matrix metalloproteinase (MMP)-2, membrane type 1-MMP (MT1-MMP) and tissue inhibitor of the MMP-2 (TIMP-2) expressions in the periodontal ligament of the rat incisor, as well as eruption rate, resistance and collagen organization. MATERIAL AND METHODS: Male Wistar rats were distributed into a control group, denominated normofunctional group, whose lower teeth underwent a normal eruption process; and a hypofunctional group, whose lower left incisor teeth were shortened every 2 days during 14 days...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044523/osseointegration-of-zirconia-and-titanium-implants-in-a-rabbit-tibiae-model-evaluated-by-microtomography-histomorphometry-and-fluorochrome-labeling-analyses
#18
R Martins, T M Cestari, R V N Arantes, P S Santos, R Taga, M J Carbonari, R C Oliveira
OBJECTIVES: This study compares the osseointegration of machined-zirconia implants containing yttria (M-Y-TZP) with machined (M-Ti) and resorbable blast media (RBM-Ti) titanium implants. MATERIAL AND METHODS: M-Y-TZP, M-Ti and RBM-Ti implants were randomly placed in rabbit tibiae. Fluorochrome bone labels (tetracycline, alizarin and calcein) were administered at different time periods. After 8 weeks, osseointegration was evaluated in terms of bone-to-implant contact (BIC), new bone area (nBA), remaining cortical bone area (rBA) and temporal quantification of fluorochromes, using micro-CT and histomorphometric analyses...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29044521/influence-of-tongue-brushing-and-scraping-on-the-oral-microflora-of-periodontitis-patients
#19
I Laleman, R Koop, W Teughels, C Dekeyser, M Quirynen
OBJECTIVE: To examine the effect of tongue cleaning with a tongue scraper (TS) or toothbrush (TB) in patients with periodontitis. BACKGROUND: The tongue is a possible reservoir for bacterial (re)colonization of the periodontal tissues in patients with periodontitis. To date, it is not known what the influence of tongue cleaning is on the tongue coating of patients with periodontitis. MATERIAL AND METHODS: Eighteen systemically healthy, untreated moderate to severe adult patients with periodontitis with some degree of tongue coating were randomly assigned to the use of a TS or TB for cleaning the tongue...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28990193/antimicrobial-peptides-as-a-possible-interlink-between-periodontal-diseases-and-its-risk-factors-a-systematic-review
#20
REVIEW
S Li, G Schmalz, J Schmidt, F Krause, R Haak, D Ziebolz
Antimicrobial peptides (AMPs) play a critical role in controlling innate and acquired immune responses. Local dysregulation of AMP is implicated in the pathogenesis of periodontal diseases as a response to periodontal pathogen challenge. Changes in AMP expression also characterize tobacco smoking, diabetes mellitus, obesity and rheumatoid arthritis, which are established risk factors of periodontal diseases, suggesting AMP may act as putative mechanistic links between these. The aim was to evaluate and summarize critically the current evidence pertaining to interrelationships between AMPs, periodontal diseases and selected periodontal disease risk factors...
October 8, 2017: Journal of Periodontal Research
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