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European Journal of Oral Sciences

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https://www.readbyqxmd.com/read/28524243/bulk-filled-posterior-resin-restorations-based-on-stress-decreasing-resin-technology-a-randomized-controlled-6-year-evaluation
#1
Jan W V van Dijken, Ulla Pallesen
This randomized study evaluated a flowable resin composite bulk-fill technique in posterior restorations and compared it intraindividually with a conventional 2-mm resin composite layering technique over a 6-yr follow-up period. Thirty-eight pairs of Class II restorations and 15 pairs of Class I restorations were placed in 38 adults. In all cavities a single-step self-etch adhesive (Xeno V) was applied. In the first cavity of each pair, the flowable resin composite (SDR) was placed, in bulk increments of up to 4 mm...
May 19, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28474467/fauchard-boerhaave-and-the-pathogenesis-of-periodontitis-in-the-17th-and-18th-centuries
#2
LETTER
Roger Seiler, Francesco M Galassi, Frank J Rühli
No abstract text is available yet for this article.
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28474466/reply
#3
LETTER
Lia S de Castilho, Cláudia S de Magalhães
No abstract text is available yet for this article.
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28474465/stereomicroscopy-has-low-accuracy-for-detecting-the-depth-of-carious-lesion-in-dentine
#4
LETTER
Frederico B de Sousa, Priscila F da Silva, Ana Maria B Chaves
No abstract text is available yet for this article.
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28474464/author-guidelines
#5
(no author information available yet)
No abstract text is available yet for this article.
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28455845/do-traumatic-events-have-more-impact-on-the-development-of-dental-anxiety-than-negative-non-traumatic-events
#6
Ad De Jongh, Astrid van Eeden, Caroline M H H van Houtem, Arjen J van Wijk
The importance of exposure to traumatic events for the development of dental anxiety has not been investigated. The aim of the present study was to test the hypotheses that individuals who reported having been exposed to a traumatic event [that is, fulfilling Criterion A of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5), for post-traumatic stress disorder (PTSD)] as the cause of their dental anxiety would report significantly higher levels of dental anxiety, typical trauma-related (PTSD) symptoms, and greater disturbance of memories involving these events than those who reported being exposed to non-traumatic events...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28452076/comparison-between-universal-adhesives-and-two-step-self-etch-adhesives-in-terms-of-dentin-bond-fatigue-durability-in-self-etch-mode
#7
Akimasa Tsujimoto, Wayne W Barkmeier, Toshiki Takamizawa, Hidehiko Watanabe, William W Johnson, Mark A Latta, Masashi Miyazaki
This aim of this study was to compare universal adhesives and two-step self-etch adhesives in terms of dentin bond fatigue durability in self-etch mode. Three universal adhesives - Clearfil Universal, G-Premio Bond, and Scotchbond Universal Adhesive - and three-two-step self-etch adhesives - Clearfil SE Bond, Clearfil SE Bond 2, and OptiBond XTR - were used. The initial shear bond strength and shear fatigue strength of resin composite bonded to adhesive on dentin in self-etch mode were determined. Scanning electron microscopy observations of fracture surfaces after bond strength tests were also made...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28444854/analysis-of-organic-components-in-resin-modified-pulp-capping-materials-critical-considerations
#8
Bo W Nilsen, Einar Jensen, Ulf Örtengren, Vibeke B Michelsen
The purpose of this study was to elucidate the organic composition and eluates of three resin-based pulp-capping materials in relation to their indications and safety data sheets. Uncured samples of Theracal LC, Ultra-Blend Plus, and Calcimol LC were investigated using gas chromatography-mass spectrometry (GC-MS) and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). Identification/quantification of 7-d leachables of cured samples was performed using GC-MS for 2-hydroxyethyl methacrylate (HEMA), 2-(dimethylamino)ethyl methacrylate (DMAEMA), camphorquinone (CQ), ethylene glycol dimethacrylate (EGDMA), ethyl-4-(dimethylamino)benzoate (DMABEE), and triethylene glycol dimethacrylate (TEGDMA)...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28440039/effect-of-photoactivation-on-the-reduction-of-composite-resin-contamination
#9
Natalia A Pauletti, Luiza P S Girotto, Françoise H S Leite, Débora N Mario
Composite resins are predominantly marketed in developing countries in tube form, and the contents of the tube may be used in numerous procedures for different patients. This represents a problem because of the risk of cross-contamination. This study aimed to evaluate contamination in vitro of the internal contents of composite resin tubes in the dental clinics of a higher-education institution, as well as the effect of photoactivation on the level of contamination. Twenty-five tubes containing composite resin were randomly chosen (by lottery)...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28421630/the-factor-structure-of-dental-fear
#10
Caroline M H H van Houtem, Arjen J van Wijk, Dorret I Boomsma, Lannie Ligthart, Corine M Visscher, Ad De Jongh
There is limited empirical information as to whether or how stimuli associated with dental fear can be classified into distinct subtypes. The purpose of the current study was to develop a descriptive framework for the classification of dental fear. Data were collected using a survey among Dutch twin families (n = 11,771). The sample was randomly divided into two subsamples of, respectively, 5,920 and 5,851 individuals. An exploratory factor analysis (EFA) was performed on the first subsample to delineate the multidimensional structure of a set of 28 dental-fear-provoking objects and situations...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28303598/three-dimensional-finite-element-analysis-of-zirconia-all-ceramic-cantilevered-fixed-partial-dentures-with-different-framework-designs
#11
Shoko Miura, Shin Kasahara, Shinobu Yamauchi, Hiroshi Egusa
The purpose of this study were: to perform stress analyses using three-dimensional finite element analysis methods; to analyze the mechanical stress of different framework designs; and to investigate framework designs that will provide for the long-term stability of both cantilevered fixed partial dentures (FPDs) and abutment teeth. An analysis model was prepared for three units of cantilevered FPDs that assume a missing mandibular first molar. Four types of framework design (Design 1, basic type; Design 2, framework width expanded buccolingually by 2 mm; Design 3, framework height expanded by 0...
June 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28263008/frax-and-mandibular-sparse-trabeculation-as-fracture-predictors-a-longitudinal-study-from-1980-to-2002
#12
Valter Sundh, Dominique Hange, Margareta Ahlqwist, Magnus Hakeberg, Lauren Lissner, Grethe Jonasson
The fracture assessment tool (FRAX) is widely used for predicting fractures, but better methods are needed. The aim of this study was to determine whether visual assessments of mandibular trabecular bone could improve FRAX predictions. Three age-cohorts of women were examined twice - 499 women in 1980/1981 and 412 women in 1992/1993; 397 participated in both examinations. Information on 10-yr fracture events was available, and bone trabeculation was assessed in radiographs as 'dense', 'mixed', or 'sparse'. Fracture assessment tool values, without bone mineral density (BMD), were calculated twice...
April 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28263007/author-guidelines
#13
(no author information available yet)
No abstract text is available yet for this article.
April 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28150908/lack-of-evidence-for-prognostic-value-of-epidermal-growth-factor-receptor-intron-1-ca-repeats-for-oral-carcinomas
#14
Clarissa Precht, Marco Blessmann, Lan Kluwe, Theresa Scheld, Gerhard Schön, Anders Henningsen, Christina Pflug, Ralf Smeets, Max Heiland, Alexander Gröbe
Epidermal growth factor receptor (EGFR) expression is altered in several malignancies, including oral squamous cell carcinoma. A CA-repeat polymorphism in intron-1 (CA-SSR-1) of the EGFR gene is reported to influence EGFR expression and is associated with features of various solid tumors and outcomes of cancer patients. In the present study we evaluated the influence of length and zygosity of CA-SSR-1 on the survival of patients with oral squamous cell carcinoma. The length and zygosity of CA-SSR-1 was obtained through microsatellite analysis in 91 patients with oral cancer, who were treated in the Department of Oral and Maxillofacial Surgery of the University Medical Centre Hamburg Eppendorf, Germany, during the years 1998-2008...
April 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28247537/in-vitro-efficacy-of-a-novel-potassium-oxalate-hydrogel-for-dentin-hypersensitivity
#15
Elena M Varoni, Tommaso Zuccheri, Andrea Carletta, Barbara Palazzo, Andrea Cochis, Martino Colonna, Lia Rimondini
A novel potassium oxalate-based hydrogel is proposed for treating dentin hypersensitivity and this study evaluates its in vitro performance as a remineralizing, desensitizing agent. Etched disks of human dentin were treated for 10 or 20 min using the test hydrogel, to mimic a professional application with dental mouth guards. Dentin disks were evaluated in terms of permeability indexes in a fluid-filled system, the surface morphology was assessed by scanning electron microscopy, and the structural properties were studied using X-ray diffraction analysis...
March 1, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28233438/effect-of-silane-pretreatment-on-the-immediate-bonding-of-universal-adhesives-to-computer-aided-design-computer-aided-manufacturing-lithium-disilicate-glass-ceramics
#16
Chenmin Yao, Liqun Zhou, Hongye Yang, Yake Wang, Hualing Sun, Jingmei Guo, Cui Huang
The aim of this study was to investigate the effect of silane pretreatment on the universal adhesive bonding between lithium disilicate glass ceramic and composite resin. IPS e.max ceramic blocks etched with hydrofluoric acid were randomly assigned to one of eight groups treated with one of four universal adhesives (two silane-free adhesives and two silane-containing adhesives), each with or without silane pretreatment. Bonded specimens were stored in water for 24 h. The shear bond strength (SBS) of the ceramic-resin interface was measured to evaluate bond strength, and the debonded interface after the SBS test was analysed using field-emission scanning electron microscopy to determine failure mode...
February 24, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28224754/evaluation-of-iso-4049-water-sorption-and-water-solubility-of-resin-cements
#17
Johannes A Müller, Nadja Rohr, Jens Fischer
The aim of this study was to evaluate the water sorption and solubility test design of ISO 4049 for resin cements. Sorption and solubility of six dual-curing resin cements [RelyX Unicem 2 Automix (RUN), Multilink Speed CEM (MLS), Panavia SA Plus (PSA), RelyX Ultimate (RUL), Multilink Automix (MLA), and Panavia V5 (PV5)] were analyzed by storage in distilled water after dual-curing. In addition, sorption and solubility during thermal cycling were assessed with self-cured and dual-cured specimens. After water storage, all cements revealed sorption in the range of 30 μg mm(-3) except for PV5, for which sorption was markedly lower (mean ± SD = 20...
February 21, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28213935/effect-of-a-one-step-self-etch-adhesive-on-endogenous-dentin-matrix-metalloproteinases
#18
Fabianni M Apolonio, Annalisa Mazzoni, Valeria Angeloni, Polliana M C Scaffa, Spartaco Santi, Vicente de Paulo A Saboia, Franklin R Tay, David H Pashley, Lorenzo Breschi
Degradation of the hybrid layer created in dentin by dentin adhesives is caused by enzyme activities present within the dentin matrix that destroy unprotected collagen fibrils. The aim of the present study was to evaluate the effect of a one-step self-etch adhesive system on dentinal matrix metalloproteinases 2 and 4 (MMP-2 and MMP-9, respectively) using in situ zymography and an enzymatic activity assay. The null hypothesis tested was that there are no differences in the activities of dentinal MMPs before and after treatment with a one-step adhesive system...
February 17, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28191670/involvement-of-the-phosphoinositide-3-kinase-akt-signaling-pathway-in-bone-morphogenetic-protein-9-stimulated-osteogenic-differentiation-and-stromal-cell-derived-factor-1-production-in-human-periodontal-ligament-fibroblasts
#19
Kirara Furue, Kotaro Sena, Kenji Sakoda, Toshiaki Nakamura, Kazuyuki Noguchi
Recent studies have shown that bone morphogenetic protein 9 (BMP-9) can induce osteogenic differentiation in human periodontal stem cells and human periodontal ligament fibroblasts (PDLFs). Bone morphogenetic protein 9 may be used in periodontal tissue regeneration because of its potent osteoinductive ability. Human periodontal ligament cells also have been demonstrated to produce stromal cell-derived factor 1 (SDF-1), which is important for stem-cell homing and recruitment to injured sites. In the present study, we examined the involvement of the phosphoinositide 3-kinase (PI3K)/Akt signaling axis in osteogenic differentiation and SDF-1 production in human PDLFs stimulated with BMP-9 in osteogenic medium supplemented with dexamethasone and ascorbic acid...
February 13, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28145597/proprioceptive-mechanisms-in-occlusion-stimulated-masseter-hypercontraction
#20
Xin Liu, Chunkui Zhang, Dongmei Wang, Hongyun Zhang, Xiaodong Liu, Jinlian Li, Meiqing Wang
Neurons in the trigeminal mesencephalic nucleus (Vme) have an axon that branches peripherally to innervate the orofacial region and projects centrally to the trigeminal motor nucleus (Vmo). They function as the primary neurons conveying proprioceptive messages. The present study aimed to demonstrate the presence of a periodontal-Vme-Vmo circuit and to provide evidence for its involvement in an experimental unilateral anterior crossbite (UAC) model, which can induce osteoarthritis in the temporomandibular joint...
February 1, 2017: European Journal of Oral Sciences
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