Abstract:
:This study evaluated the microtensile bond strength (μTBS) of 1-step self-etch adhesives (1-SEAs) and 2-step self-etch adhesives (2-SEAs) to pulp chamber dentin immediately after bleaching with 2 types of common bleaching techniques. Pulp chamber dentin of bovine teeth was bleached using 30% hydrogen peroxide (H2O2) solution with quartz-tungsten-halogen light-curing unit (Group 1) and 3.5% H2O2-containing titanium dioxide (TiO2) (Pyrenees®) activated with 405-nm violet diode laser for 15 min (Group 2). Unbleached specimens were placed in distilled water for 15 min and used as controls. After treatment, dentin was bonded with resin composite using 1-SEA or 2-SEA and stored in water at 37°C for 24 h. Each specimen was sectioned and trimmed to an hourglass-shape and μTBS was measured. Fractured specimens were examined under a scanning electron microscope to determine fracture modes. All specimens in Group 1 failed before proper bonding tests. In Group 2, the μTBS of 2-SEA was significantly greater (with no failed specimens) than 1-SEA (where 21 out of 36 failed). These results indicate that 2-SEA is a better adhesive system than 1-SEA on bleached dentin. Our results also demonstrated that application of H2O2 significantly decreases bond strength of resin to dentin; however, in the case of nonvital tooth bleaching, Pyrenees® is a better alternative to the conventional 30% H2O2 bleaching.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Haruyama A,Kameyama A,Kato J,Takemoto S,Oda Y,Kawada E,Takahashi T,Furusawa Mdoi
10.1155/2016/1313586subject
Has Abstractpub_date
2016-01-01 00:00:00pages
1313586eissn
2314-6133issn
2314-6141journal_volume
2016pub_type
杂志文章abstract::Dengue fever, a reemerging disease, is putting nearly 2.5 billion people at risk worldwide. The number of infections and the geographic extension of dengue fever infection have increased in the past decade. The disease is caused by the dengue virus, a flavivirus that uses mosquitos Aedes sp. as vectors. The disease ha...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/825039
更新日期:2014-01-01 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is rapidly becoming the most prevalent cause of liver disease worldwide and afflicts adults and children as currently associated with obesity and insulin resistance. Even though lately some advances have been made to elucidate the mechanism and causes of the disease much remain...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/984578
更新日期:2015-01-01 00:00:00
abstract::Here we aimed to develop a capillary electrophoresis-based high-throughput multiplex polymerase chain reaction (PCR) system for the simultaneous detection of nine pathogens in swine. Nine pairs of specific primers and a set of universal primers were designed; the multiplex PCR was established. The specificity and cros...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/7243909
更新日期:2017-01-01 00:00:00
abstract:Objective:This study evaluated the bioactivity and physicochemical properties of three commercial calcium silicate-based endodontic materials (MTA, EndoSequence Root Repair Material putty, and Biodentine™). Material and Methods. Horizontal sections of 3 mm thickness from 18 root canals of human teeth were subjected to ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9576930
更新日期:2020-05-22 00:00:00
abstract::Background. Prior studies have demonstrated that conventional and emerging CV risk factors are associated with worsening arterial stiffness among end-stage renal disease (ESRD) patients on hemodialysis. The present cross-sectional study evaluates the association between the etiology of ESRD and arterial stiffness amon...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2543262
更新日期:2017-01-01 00:00:00
abstract::Toxoplasma gondii infects all warm-blooded animals, including humans, causing serious public health problems and great economic loss for the food industry. Commonly used serological tests require costly and hazardous preparation of whole Toxoplasma lysate antigens from tachyzoites. Here, we have evaluated an alternati...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/690529
更新日期:2014-01-01 00:00:00
abstract::Chosen aspects of examinations of inorganic gunshot particles by means of scanning electron microscopy and energy dispersive X-ray spectrometry technique are presented. The research methodology of particles was worked out, which included a precise and repeatable procedure of the automatic detection and identification ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/428038
更新日期:2014-01-01 00:00:00
abstract::Myofascial pain syndrome is characterized by pain and a limited range of joint motion caused by muscle contracture related to motor-end-plate dysfunction and the presence of myofascial trigger points (MTrPs). It is the most frequent cause of musculoskeletal pain, with a worldwide prevalence varying between 13.7% and 4...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9240581
更新日期:2020-01-22 00:00:00
abstract::Bioadhesive nasal dosage forms are an attractive method for overcoming rapid mucociliary clearance transport in the nose and for delivering the drug directly to brain. The present study was designed to formulate chondroitin sulphate (CS) and chitosan (CH) nasal inserts employing zolmitriptan, an antimigraine drug. The...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/958465
更新日期:2013-01-01 00:00:00
abstract::Ankylosing spondylitis (AS) is a chronic inflammatory rheumatic disease associated with accelerated atherosclerosis and increased risk of cardiovascular (CV) disease. AS patients also display a high prevalence of features clustered under the name of metabolic syndrome (MeS). Anti-TNF- α therapy was found to be effecti...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/860651
更新日期:2014-01-01 00:00:00
abstract::Fungi are important soil components as both decomposers and plant symbionts and play a major role in ecological and biogeochemical processes. However, little is known about the richness and structure of fungal communities. DNA sequencing technologies allow for the direct estimation of microbial community diversity, av...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/972481
更新日期:2015-01-01 00:00:00
abstract::Caudal epidural block is a commonly used technique for surgical anesthesia in children and chronic pain management in adults. It is performed by inserting a needle through the sacral hiatus to gain entrance into the sacral epidural space. Using conventional blind technique, the failure rate of caudal epidural block in...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2017/9217145
更新日期:2017-01-01 00:00:00
abstract::The sphingosine-1-phosphate (S1P) system regulates both thymic and lymph nodes T cell egress which is essential for producing and maintaining the recycling T cell repertoire. Infection with the protozoan parasite Trypanosoma cruzi induces a hormonal systemic deregulation that has impact in the thymic S1P homeostasis t...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/709846
更新日期:2015-01-01 00:00:00
abstract::Asthma susceptibility genes are mapped to a region on human chromosome 5q31-q33, which contains a cluster of proinflammatory cytokine genes such as interleukin-13 (IL-13), which is associated with asthma. This study investigated the allele frequencies of two single nucleotide polymorphisms (SNPs) (-1111C>T and 4257C>A...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/981012
更新日期:2013-01-01 00:00:00
abstract::Trichoderma spp. are important biocontrol filamentous fungi and have tremendous potential in soil bioremediation. In our previous studies, a C2H2 type transcription factor coding gene (thmea1) was cloned from a biocontrol agent T. harzianum Th-33; the encoded sequence of thmea1 contained 3 conserved C2H2 domains with ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8149682
更新日期:2018-07-18 00:00:00
abstract::Since the discovery of JAK2V617F tyrosine kinase-activating mutation, several genes have been found mutated in myeloproliferative neoplasms (MPNs). FLT3-ITD, NPM1, and DNMT3A mutations frequently occurred in AML patients and have been found conferred with myeloproliferative neoplasms in mouse model. Therefore, we soug...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/485645
更新日期:2014-01-01 00:00:00
abstract::Parkinson's disease (PD) is a major neurodegenerative disorder for which the etiology and pathogenesis remain as elusive as for Alzheimer's disease. PD appears to be caused by genetic and environmental factors, and pedigree and cohort studies have identified numerous susceptibility genes and loci related to PD. Autoso...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/371256
更新日期:2014-01-01 00:00:00
abstract:OBJECT:Video-assisted thoracoscopic sympathectomy is a safe, effective, and minimally invasive procedure for primary hyperhidrosis. This study aims to evaluate long-term results and patients' quality of life and investigate potential variables responsible for compensatory sweating after one-stage bilateral single-port ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/348017
更新日期:2013-01-01 00:00:00
abstract::The aim of this study was to evaluate the efficacy and safety of transcatheter arterial chemoembolization (TACE) using warmed and nonwarmed miriplatin for hepatocellular carcinoma. Eighty patients (117 nodules), treated between January 2010 and June 2013, were evaluated. Thirty-two and 85 nodules were treated with non...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/359296
更新日期:2014-01-01 00:00:00
abstract::Individuals with X-HIGM syndrome fail to express functional CD40 ligand; consequently they cannot mount effective protective antibody responses against pathogenic bacteria. We evaluated, compared, and characterized the humoral immune response of wild type (WT) and C57-CD40L deficient (C57-CD40L(-/-)) mice infected wit...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/679850
更新日期:2015-01-01 00:00:00
abstract::Studies have found that biotin favors glucose and lipid metabolism, and medications containing biotin have been developed. Despite the use of biotin as a pharmacological agent, few studies have addressed toxicity aspects including the possible interaction with cytochrome P450 enzyme family. This study analyzed the eff...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/627907
更新日期:2013-01-01 00:00:00
abstract::This study was conducted to show the effect of Aspergillus awamori (AA), fructooligosaccharide (FOS), and combined Aspergillus awamori and fructooligosaccharide (AA + FOS) on growth, digestibility, blood parameters, and expression of some growth-related genes. A total of 60 broiler chicks at the age of 15 d were divid...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/946859
更新日期:2014-01-01 00:00:00
abstract::Hypertrophic Scars (HTSs) are a complex fibroproliferative disorder, and their exact mechanism is still not fully understood. In this study, we first found that cystic fibrosis transmembrane conductance regulator (CFTR) expression was downregulated in human hypertrophic scars at the RNA and protein levels by microarra...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2020/9526289
更新日期:2020-01-02 00:00:00
abstract::TMJ disc related diseases are difficult to be cured due to the poor repair ability of the disc. TMJ-SDSCs were ideal cell sources for cartilage tissue engineering which have been widely used in hyaline cartilage regeneration. Fibrin gel has been demonstrated as a potential scaffold for neocartilage formation. The aim ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/454021
更新日期:2014-01-01 00:00:00
abstract:Objective:To explore multiscale integrated analysis methods in identifying key regulators of esophageal cancer (ESCA). Methods:We downloaded the ESCA dataset from The Cancer Genome Atlas (TCGA) database, which contained RNA-seq data, miRNA-seq data, methylation data, and clinical phenotype information. Then, we combin...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5603958
更新日期:2020-08-12 00:00:00
abstract::Diabetes mellitus (DM) is one of the major metabolic disorders that is currently threatening the world. DM is seen associated with obesity and diabetic retinopathy (DR). In the present paper we tried to evaluate the relationship between the three aliments at the gene level and further performed the molecular docking t...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/6068437
更新日期:2016-01-01 00:00:00
abstract:Background:It is well known that the programmed intermittent epidural bolus (PIEB) technique effectively provides epidural anesthesia in labor. This randomized double-blind trial compared the postoperative analgesic efficacy of PIEB with that of continuous epidural infusion (CEI) in patients undergoing gynecological su...
journal_title:BioMed research international
pub_type: 杂志文章,随机对照试验
doi:10.1155/2018/6297247
更新日期:2018-05-15 00:00:00
abstract::Magnetic resonance imaging (MRI) based on the ferritin heavy chain 1 (FTH1) reporter gene has been used to trace stem cells. However, whether FTH1 expression is affected by stem cell differentiation or whether cell differentiation is affected by reporter gene expression remains unclear. Here, we explore the relationsh...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/1978602
更新日期:2018-06-26 00:00:00
abstract::In patients with sepsis and septic shock, the hemodynamic management in both early and later phases of these "organ dysfunction syndromes" is a key therapeutic component. It needs, however, to be differentiated between "early goal-directed therapy" (EGDT) as proposed for the first 6 hours of emergency department treat...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/8268569
更新日期:2016-01-01 00:00:00
abstract::Amylase is an industrially important enzyme and applied in many industrial processes such as saccharification of starchy materials, food, pharmaceutical, detergent, and textile industries. This research work deals with the optimization of fermentation conditions for α-amylase production from thermophilic bacterial str...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/9173040
更新日期:2017-01-01 00:00:00