Abstract：
OBJECTIVES:To elucidate the impact of surface properties and the release of fluoride from different glass ionomer cements on biofilm formation. METHODS:Standardized specimens manufactured from various classes of glass ionomer cements (GICs), a resin-based composite (RBC), and human enamel were subjected to surface analyses. Subsequent to simulation of salivary pellicle formation, Streptococcus mutans biofilm formation was initiated using a drip flow reactor for 48h and 96h. Biofilms were characterized by determining viable bacterial biomass and 3D biofilm architecture using SEM and CLSM; the release of fluoride from the specimens was measured using the ion selective micro method in dependence on various experimental conditions (incubation with sterile broth/bacteria/acid). RESULTS:Surface properties and biofilm formation correlated poorly, while the release of fluoride correlated well with viable streptococcal biomass and SEM/CLSM analyses. For all investigated materials, biofilm formation was lower than on enamel. The release of fluoride showed a significant dependency on the experimental conditions applied; the presence of biofilms reduced fluoride release in comparison to sterile incubation conditions. CONCLUSIONS:Within the limitations of a laboratory study, the results suggest that biofilm formation on GICs cannot be easily predicted as a function of substratum surface parameters. The release of fluoride from glass ionomer cements contributes to control biofilm formation particularly in its early phases. CLINICAL SIGNIFICANCE:Glass ionomer cements can actively control microbial biofilm formation, while biofilms modulate the release of fluoride from GIC materials.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Hahnel S,Ionescu AC,Cazzaniga G,Ottobelli M,Brambilla Edoi
10.1016/j.jdent.2017.02.005subject
Has Abstractpub_date
2017-05-01 00:00:00pages
14-24eissn
0300-5712issn
1879-176Xpii
S0300-5712(17)30033-7journal_volume
60pub_type
杂志文章abstract：OBJECTIVES:We recently developed a new rechargeable composite with nanoparticles of amorphous calcium phosphate (NACP) having long-term calcium (Ca) and phosphate (P) ion release; however, this composite was not antibacterial. The objectives of this study were to: (1) incorporate dimethylaminohexadecyl methacrylate (DM...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.06.003
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to evaluate the risk factors associated with noncarious cervical lesions (NCCLs), cervical dentin hypersensitivity (CDH), and gingival recession (GR), besides the relationship among these conditions in a specific Brazilian sample population. METHODS:185 patients who attended the "A...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.06.017
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to compare inhibition, in vitro, of a resin-modified and a conventional glass ionomer cement. METHODS:Standardized Class V cavities were prepared in extracted human molar teeth and restored with Fuji II LC (n = 14) or Chemfil II (n = 14) according to manufacturers' guidelines. The ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00051-8
更新日期：1996-01-01 00:00:00
abstract：OBJECTIVE:This study evaluated the inhibitory effect of proanthocyanidin (PA), a natural collagen cross-linker, on soluble and matrix-bound proteases, which are responsible for progressive degradation of exposed collagen fibrils within the hybrid layer and resin-dentine bond failure over time. METHODS:The inhibitory e...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.06.002
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVES:To evaluate bone reconstruction and soft tissue reactions at immediate implants placed into intact sockets and those with buccal bone dehiscence defects. METHODS:Fifty-nine internal connection implants from four different manufacturers were immediately placed in intact sockets(non-dehiscence group, n=40), a...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.07.010
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to measure the satisfaction of patients with respect to the aesthetics of veneer restorations (VRs) and to identify potential factors influencing their satisfaction. MATERIALS AND METHODS:One hundred and eighty VRs of three different types (direct composite, indirect composite and ...
journal_title：Journal of dentistry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0300-5712(96)00067-x
更新日期：1997-11-01 00:00:00
abstract：OBJECTIVES:To investigate the effects of acidic and neutral 30% hydrogen peroxide (HP) on human tooth enamel in terms of chemical structure, mechanical property, surface morphology and tooth colour. METHODS:Twenty-seven human dental blocks were obtained from premolars and randomly divided into three groups (n=9): Grou...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.07.011
更新日期：2011-10-01 00:00:00
abstract：:The polymeric materials currently used in GIC are based on poly(acrylic acid), poly(acrylic acid-co-itaconic acid), or poly(acrylic acid-co-maleic acid). For the visible light cured (VLC) type GIC, the polymeric material is chemically modified to have pendant free-radical polymerizable double bonds, with the aqueous f...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2005.08.008
更新日期：2006-09-01 00:00:00
abstract：OBJECTIVES:Previously, we have reported that dental composite incorporating the new monomer methacryloyloxydodecylpyridinium bromide (MDB) showed no release of antibacterial components after being cured but still exhibited antibacterial activity against Streptococcus mutants on its surface. In this study, in order to e...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)93576-n
更新日期：1995-06-01 00:00:00
abstract：OBJECTIVES:To evaluate the influence of tooth bleaching on the opalescence properties of enamel. METHODS:Color of 38 specimens was determined by colorimetric analysis before and after bleaching in the reflectance and transmittance modes. The results were described as CIELab color coordinates. The Opalescent Parameter ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.01.011
更新日期：2012-07-01 00:00:00
abstract：OBJECTIVES:To detect any differences in the propensity of unstimulated and stimulated, individual whole saliva to cause in vitro staining by chlorhexidine and tea. METHODS:Unstimulated and stimulated human saliva was collected on a daily basis and used to coat optically clear acrylic specimens. Specimens were subjecte...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00053-2
更新日期：2002-09-01 00:00:00
abstract：:Ultrasound in the kHz frequency range is used widely in clinical dentistry. The most common uses are in the fields of periodontology and endodontics. The ultrasonic scaler works by the vibratory chipping action of the oscillating tip and is assisted by the presence of cavitational activity in the associated cooling wa...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/0300-5712(92)90003-u
更新日期：1992-02-01 00:00:00
abstract：OBJECTIVES:The bonding of resin to dentine is dependent largely on surface modifications. The purpose of the present study was to test the hypothesis that a role of the metal chlorides used as primers is to initiate polymerization of resin at the resin-dentine interface, thereby affecting bond strength. METHODS:Nine p...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(97)00030-4
更新日期：1998-09-01 00:00:00
abstract：OBJECTIVES:The objective of this study was to investigate the impact of moderate and severe hypodontia and amelogenesis imperfecta on the quality of life and self-esteem of affected adult patients. METHODS:Forty one adult patients (aged 18-45 years) with clinical and radiological diagnoses of moderate to severe hypodo...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.06.004
更新日期：2013-08-01 00:00:00
abstract：OBJECTIVES:Systemic conditions may affect host susceptibility, disease progression and severity as well as treatment response. Previously, low oestrogen (E(2)) levels were associated with increased bone resorption, due to increased osteoclastogenesis and decreased osteoclast apoptosis. Osteoprotegerin (OPG) is an essen...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.01.013
更新日期：2012-05-01 00:00:00
abstract：OBJECTIVE:This study aimed to assess the survival and success of glass fiber posts compared to cast metal posts in teeth without ferrule. MATERIAL AND METHODS:An equivalency, prospective, double-blind (patient and outcome evaluator) randomized controlled trial (RCT) with parallel groups was designed to compare the cli...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2020.103334
更新日期：2020-05-01 00:00:00
abstract：OBJECTIVE:Cytokine networks regulate innate and adaptive immune responses, which in turn are recognised to direct the progression or arrest of periodontal disease. This study aimed to compare the profile of seven cytokines, implicated in regulating T-cell networks, in gingival crevicular fluid (GCF) samples with differ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.04.009
更新日期：2019-06-01 00:00:00
abstract：OBJECTIVES:Health condition of the gingival tissues contacting the surfaces of fixed prostheses is a result of multiple etiologic factors. The aim of the investigation discussed here was to evaluate the attachment and proliferation rate of cultured human epithelial cells on three commonly used restorative materials und...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.11.008
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:This study evaluated the effect of propolis associated with Biosilicate on the bond strength (BS) and gelatinolytic activity at the adhesive/dentin interface. METHODS:Occlusal cavities were prepared in 320 human molars. Half of them were submitted to cariogenic challenge. All the teeth were separated into e...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2021.103585
更新日期：2021-01-16 00:00:00
abstract：OBJECTIVES:This paper reports the findings of a study on the roles of dental nurses in cross-infection control in general dental practices and who were undergoing training for their initial certificate. The research aimed to find out what factors in their vocation gave them satisfaction, what caused stress and the bear...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00094-1
更新日期：1996-09-01 00:00:00
abstract：AIM:The aim of this study is to report the subsequent treatment provided, over the 11 years' data available, when a re-intervention was considered clinically necessary on a glass ionomer (GI) restoration. METHODS:A detailed sample of treatment records of patients has been established at the Dental Practice Division of...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.07.008
更新日期：2009-01-01 00:00:00
abstract：OBJECTIVE:To investigate the effects of Halloysite® aluminosilicate clay nanotubes (HNTs) addition on selected physical, mechanical, and biological properties of experimental adhesive resins. METHODS:Experimental dentin adhesive resins were prepared by mixing Bis-GMA, TEGDMA, HEMA (50/25/25wt.%), and photo-initiators....
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2015.08.014
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVES:To compare the clinical performance of Scotchbond™ Universal Adhesive used in self- and total-etch modes and two-bottle Scotchbond™ Multi-purpose Adhesive in total-etch mode for Class 5 non-carious cervical lesions (NCCLs). METHODS:37 adults were recruited with 3 or 6 NCCLs (>1.5mm deep). Teeth were isolate...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2015.07.009
更新日期：2015-10-01 00:00:00
abstract：OBJECTIVES:The purpose of the study was to evaluate gloss and color changes of resin composites after exposure to different bleaching agents. METHODS:Products used, were: Nite White ACP (10% carbamide peroxide gel), Crest Classic and Supreme Whitestrip (6.5% and 14% hydrogen peroxide strips, accordingly). A hybrid (He...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2010.06.006
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVES:To assess sustainability of shortened dental arches (SDA) by determining time to 'first restorative intervention' of teeth and time to 'tooth loss' and comparing these outcomes with complete dental arches (CDA) and SDA plus removable dental prostheses (RDP). METHODS:Data (follow-up time ranged from 27.4 (SD...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.05.013
更新日期：2013-08-01 00:00:00
abstract：OBJECTIVES:The study evaluated the antibacterial effect of VIOlight (VL) Personal Travel Toothbrush Sanitizer on biofilms after toothbrush exposure to human saliva compared to Listerine Antiseptic (LA), 3% hydrogen peroxide (3%HP) and water. METHODS:Twenty toothbrush heads (n=5/Gp) were immersed in saliva and to allow...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.08.011
更新日期：2010-08-01 00:00:00
abstract：OBJECTIVES:This study evaluated the immediate and 6-month resin-dentin micro-bond strength (microTBS) of one-step self-etch systems (Adper Prompt L-Pop [AD] 3M ESPE; Xeno III [XE] Dentsply De Trey; iBond [iB] Heraeus Kulzer) under different application modes. MATERIALS AND METHODS:Dentin oclusal surfaces were exposed ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2008.01.018
更新日期：2008-05-01 00:00:00
abstract：:Maximum lateral forces as measured by strain gauges mounted on the analysing rod of a Nesor surveyor for four operators during surveying procedures ranged from 81 to 110 cN (mean 92.4 cN). Maximum lateral forces used when trimming blockout and inlay wax ranged from 159 to 184 cN (mean 169 cN) and 137 to 196 cN (mean 1...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(91)90012-n
更新日期：1991-06-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to investigate the influence of a fiber post on the fracture mechanics of zirconia crowns inserted over endodontically treated teeth with different extent of coronal damage. METHODS:Endodontically treated human molars with three types of coronal damage received fiber posts before ce...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2008.03.014
更新日期：2008-07-01 00:00:00
abstract：OBJECTIVE:The study evaluated the clinical performance and marginal adaptation of direct and semi-direct class II composite restorations in a split-mouth design over 3.5 years. DESIGN:44 upper posterior teeth in 11 adults with primary carious lesions were treated with 22 direct and 22 semi-direct restorations. Convent...
journal_title：Journal of dentistry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.jdent.2004.11.009
更新日期：2005-07-01 00:00:00
