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https://www.readbyqxmd.com/read/29140971/effect-of-s-mutans-and-s-sanguinis-on-growth-and-adhesion-of-p-gingivalis-and-their-ability-to-adhere-to-different-dental-materials
#1
Yan Tu, Xiaolong Ling, Yadong Chen, Yuan Wang, Na Zhou, Hui Chen
BACKGROUND Caries and periodontal diseases are caused by the biofilm formed by caries- and periodontal disease-related bacteria. Specific biofilms could be formed on different filling materials in oral cavity. Thus, to explore the inhibition effect of restorative filling materials on biofilm formation is of great significance in the treatment of caries and periodontal disease. MATERIAL AND METHODS The supernatants of S. mutans, S. sanguinis, and P. gingivalis suspension were combined with BHI broth. After 24 h, the live P...
November 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29140387/full-mouth-rehabilitation-with-calvarium-bone-grafts-and-dental-implants-for-a-papillon-lef%C3%A3-vre-syndrome-patient-case-report
#2
Bassam M Kinaia, Kristyn Hope, Ahmed Zuhaili, Jean Francois Tulasne
Papillon-Lefèvre syndrome (PLS) is a rare autosomal recessive disorder of keratinization associated with palmoplantar keratoderma and severe periodontitis resulting in complete edentulism in late adolescence. The pathognomonic dental features of PLS are pathologic migration, hypermobility, and exfoliation of the teeth without any signs of root resorption. It has been suggested that an effective way to treat PLS patients presenting early in the disease progression is extraction of the erupted primary dentition or hopeless permanent teeth followed by antibiotic coverage with periodontal therapy for the remaining teeth...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140093/early-diagnosis-and-treatment-of-asymptomatic-vertical-enamel-and-dentin-cracks
#3
Samer S Alassaad
Asymptomatic vertical enamel and dentin cracks can lead to multiple pathologic consequences ranging from caries to pulpal involvement, periodontal involvement, complete tooth fracture, and tooth loss if intervention is postponed. Early diagnosis, using magnification, tactile examination, transillumination, and dyes, and early restorative and occlusal treatments can be incorporated into daily practice to prevent further crack propagation before asymptomatic cracks become symptomatic and cause further damage to the dentition and surrounding tissues...
November 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29139565/leukocyte-adhesion-defect-i-rare-primary-immune-deficiency
#4
Nitesh Tewari, Vijay Prakash Mathur, Vikender Singh Yadav, Prabhat Chaudhari
Leukocyte adhesion defect I is a rare disorder (1:1,000,000) caused by diminished expression of CD-18 β2 integrins on leukocytes leading to abnormal adhesion, migration, and chemotaxis. Clinical manifestations include delayed separation of umbilical cord, omphalitis, recurrent severe infections, impaired wound healing, persistent oral ulcers, and severe periodontitis in primary and permanent dentition. A 5-year-old girl, second-born child to parents with consanguinity, presented with pain and mobility of lower teeth...
November 15, 2017: Special Care in Dentistry
https://www.readbyqxmd.com/read/29139559/associations-among-tooth-loss-systemic-inflammation-and-antibody-titers-to-periodontal-pathogens-in-japanese-patients-with-cardiovascular-disease
#5
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/29139209/protocol-for-a-new-concept-of-no-prep-ultrathin-ceramic-veneers
#6
Camillo D'Arcangelo, Mirco Vadini, Maurizio D'Amario, Zaccheo Chiavaroli, Francesco De Angelis
OBJECTIVES: No-prep veneers, although ideally considered the best option because of tooth structure maximum preservation, have been frequently criticized for some potential limitations including esthetic outcomes and periodontal complications. CLINICAL CONSIDERATIONS: A new protocol to optimize no-prep veneers restorations is presented. A key point of the proposed technique is to identify optimal margins' positions: margin is positioned in the point of maximum convexity of teeth, avoiding the over contouring of traditional no-prep veneers...
November 15, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29139168/hunter-gatherer-dental-pathology-do-historic-accounts-of-aboriginal-australians-correspond-to-the-archeological-record-of-dental-disease
#7
Judith Littleton
OBJECTIVES: Studies of hunter-gatherer oral pathology, particularly in Australia, often focus upon dental wear and caries or assume that historic studies of Aboriginal people reflect the precontact past. Consequently the range of population variation has been underestimated. In this paper dental pathology from human remains from Roonka are compared with a model of dental pathology derived from historic studies. The aim is to identify aspects of dental pathology indicative of regional or intra-population diversity...
November 15, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29138812/expression-and-regulation-of-the-erk1-2-and-p38-mapk-signaling-pathways-in-periodontal-tissue-remodeling-of-orthodontic-tooth-movement
#8
Liping Jiang, Zhen Tang
The present study aimed to investigate the expression and regulation of extracellular signal‑regulated kinase (ERK)1/2 and p38 mitogen‑activated protein kinase (MAPK) signaling pathways in periodontal tissue remodeling of orthodontic tooth movement. Sprague Dawley rats with orthodontic tooth movement were generated. After tension stress for 1, 3, 5, 7 and 14 days, the protein and mRNA expression levels of ERK1/2 and p38 in periodontal tissue were determined by western blotting and reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR), respectively...
November 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29138754/the-relation-between-periodontopathogenic-bacterial-levels-and-resistin-in-the-saliva-of-obese-type-2-diabetic-patients
#9
Natheer Al-Rawi, Farah Al-Marzooq
This study aims to investigate the relation between resistin and periodontopathogenic bacterial levels in the saliva of obese adults compared to healthy control and to examine whether salivary resistin can serve as a biomarker of type 2 diabetes in obese patients. A total of 78 saliva samples were collected from patients attending to the University Dental Hospital, Sharjah, UAE. The patients were divided into three equal groups: obese diabetics, obese nondiabetics, and nonobese nondiabetic control. Salivary resistin was measured using ELISA...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29137082/trends-in-the-prevalence-of-periodontitis-in-taiwan-from-1997-to-2013-a-nationwide-population-based-retrospective-study
#10
Hui-Chieh Yu, Ni-Yu Su, Jing-Yang Huang, Shiuan-Shinn Lee, Yu-Chao Chang
Periodontitis is one of the most prevalent oral diseases. In this study, we probed the nationwide registered database to assess the time trends of prevalence of periodontitis in Taiwan.A retrospective study was conducted to analyze the registered database compiled by the National Health Insurance provided by the Department of Health, Taiwan, from 1997 to December 2013.We found that the prevalence of periodontitis significantly increased from 11.5% in 1997 to 19.59% in 2013 (P for trend < .0001). The mean age ± standard deviation with periodontitis from 1997 to 2013 was 54...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29134111/periodontitis-induced-by-bacterial-infection-exacerbates-features-of-alzheimer-s-disease-in-transgenic-mice
#11
Naoyuki Ishida, Yuichi Ishihara, Kazuto Ishida, Hiroyuki Tada, Yoshiko Funaki-Kato, Makoto Hagiwara, Taslima Ferdous, Mohammad Abdullah, Akio Mitani, Makoto Michikawa, Kenji Matsushita
Periodontitis is a localized infectious disease caused by periodontopathic bacteria, such as Porphyromonas gingivalis. Recently, it has been suggested that bacterial infections may contribute to the onset and the progression of Alzheimer's disease (AD). However, we do not have any evidence about a causative relationship between periodontitis and AD. In this study, we investigated by using a transgenic mouse model of AD whether periodontitis evoked by P. gingivalis modulates the pathological features of AD. Cognitive function was significantly impaired in periodontitis-induced APP-Tg mice, compared to that in control APP-Tg mice...
2017: NPJ Aging and Mechanisms of Disease
https://www.readbyqxmd.com/read/29133962/chronic-periodontitis-and-the-risk-of-erectile-dysfunction-a-systematic-review-and-meta-analysis-methodological-issues
#12
Z Cheraghi, A Doosti-Irani
No abstract text is available yet for this article.
November 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/29132440/influence-of-successful-periodontal-intervention-in-renal-disease-inspired-study-protocol-for-a-randomised-controlled-pilot-clinical-trial
#13
Praveen Sharma, Paul Cockwell, Thomas Dietrich, Charles Ferro, Natalie Ives, Iain L C Chapple
BACKGROUND: Patients with chronic kidney disease (CKD) exhibit increased morbidity and mortality which is associated with an increased systemic inflammatory burden. Identifying and managing comorbid diseases that contribute to this load may inform novel care pathways that could have a beneficial impact on the morbidity/mortality associated with CKD. Periodontitis, a highly prevalent, chronic inflammatory disease affecting the supporting structures of teeth, is associated with an increased systemic inflammatory and oxidative stress burden and the successful treatment of periodontitis has been shown to reduce both...
November 13, 2017: Trials
https://www.readbyqxmd.com/read/29132420/substance-p-and-patterned-silk-biomaterial-stimulate-periodontal-ligament-stem-cells-to-form-corneal-stroma-in-a-bioengineered-three-dimensional-model
#14
Jialin Chen, Wei Zhang, Peyman Kelk, Ludvig J Backman, Patrik Danielson
BACKGROUND: We aimed to generate a bioengineered multi-lamellar human corneal stroma tissue in vitro by differentiating periodontal ligament stem cells (PDLSCs) towards keratocytes on an aligned silk membrane. METHODS: Human PDLSCs were isolated and identified. The neuropeptide substance P (SP) was added in keratocyte differentiation medium (KDM) to evaluate its effect on keratocyte differentiation of PDLSCs. PDLSCs were then seeded on patterned silk membrane and cultured with KDM and SP...
November 13, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29132069/risk-factors-for-tooth-loss-in-middle-and-older-age-after-up-to-10-years-an-observational-cohort-study
#15
Alexander Jochen Hassel, Volkan Safaltin, Sabine Grill, Johannes Schröder, Hans-Werner Wahl, Anna-Luisa Klotz, Edriss Habibi, Peter Rammelsberg, Andreas Zenthöfer
OBJECTIVE: The objective of this research was to identify risk factors for tooth loss in two birth cohorts, quinquagenarians and septuagenarians, after up to 10 years of clinical observation. DESIGN: One hundred and twenty-three participants were recruited from the Interdisciplinary Study of Adult Development (ILSE) and examined at baseline and up to 10 years after. Thirty-nine and 84 participants belonged to the older (OC; born in 1930/32) cohort and younger (YC; born in 1950/52) cohort, respectively...
November 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29131612/functional-characterization-of-epitheaflagallin-3-o-gallate-generated-in-laccase-treated-green-tea-extracts-in-the-presence-of-gallic-acid
#16
Nobuya Itoh, Junji Kurokawa, Yasuhiro Isogai, Masaru Ogasawara, Takayuki Matsunaga, Tutomu Okubo, Yuji Katsube
Epitheaflagallin (ETFG) and epitheaflagallin 3-O-gallate (ETFGg) are minor polyphenols in black tea extract that are enzymatically synthesized from epigallocatechin (EGC) and epigallocatechin gallate (EGCg), respectively, in green tea extract via laccase oxidation in the presence of gallic acid. The constituents of laccase-treated green tea extract in the presence of gallic acid are thus quite different from those of non-laccase-treated green tea extract: EGC and EGCg are present in lower concentrations, and ETFG and ETFGg are present in higher concentrations...
November 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29131300/engineered-scaffolds-and-cell-based-therapy-for-periodontal-regeneration
#17
Daniela Carmagnola, Mihai Tarce, Claudia Dellavia, Lia Rimondini, Elena M Varoni
BACKGROUND: The main objective of regenerative periodontal therapy is to completely restore the periodontal tissues lost. This review summarizes the most recent evidence in support of scaffold- and cell-based tissue engineering, which are expected to play a relevant role in next-generation periodontal regenerative therapy. METHODS: A literature search (PubMed database) was performed to analyze more recently updated articles regarding periodontal regeneration, scaffolds and cell-based technologies...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29131099/the-prevalence-of-periodontitis-is-increased-in-psoriasis-and-linked-to-its-inverse-subtype
#18
Clemens Painsi, Alexander Hirtenfelder, Bernhard Lange-Asschenfeldt, Franz Quehenberger, Peter Wolf
Periodontitis and psoriasis are suggested to be co-occurring, chronic inflammatory conditions with overlapping characteristics. However, respective evidence is rare and data on risk factors of periodontitis in psoriasis patients are minimal. The aim of this study was to expand the evidence of psoriasis-associated periodontitis and establish a potential risk profile for periodontitis. In total, data from 209 exacerbated psoriasis patients were retrospectively analyzed on recordings of periodontitis and compared with those of 91 patients with chronic spontaneous urticaria (CSU)...
November 2, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29130047/bending-properties-of-fiber-reinforced-composites-retainers-bonded-with-spot-composite-coverage
#19
Maria Francesca Sfondrini, Paola Gandini, Paola Tessera, Pekka K Vallittu, Lippo Lassila, Andrea Scribante
Orthodontic and periodontal splints are prepared with round or flat metallic wires. As these devices cannot be used in patients with allergy to metals or with aesthetic demands, fiber-reinforced composite (FRC) retainers have been introduced. Stiffness of FRC materials could reduce physiologic tooth movement. In order to lower rigidity of conventional FRC retainers, a modified construction technique that provided a partial (spot) composite coverage of the fiber has been tested and compared with metallic splints and full-bonded FRCs...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29129846/the-il18-promoter-polymorphism-rs1946518-is-associated-with-the-risk-of-periodontitis-in-japanese-women-the-kyushu-okinawa-maternal-and-child-health-study
#20
Keiko Tanaka, Yoshihiro Miyake, Takashi Hanioka, Shinya Furukawa, Nobuyuki Miyatake, Masashi Arakawa
Interleukin-18 (IL-18) is a proinflammatory cytokine that plays an important role in periodontitis and its polymorphisms might modulate the individual susceptibility to periodontitis. Only a limited number of studies on the association between IL18 single-nucleotide polymorphisms (SNPs) and the risk of periodontitis have been realized, however. The aim of this case-control study among young post-partum Japanese women (18 to 45 years) was to determine the impact of SNPs, rs1946518 (-607 C/A) and rs187238 (-137G/C), on periodontitis...
2017: Tohoku Journal of Experimental Medicine
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