Abstract：
UNLABELLED:Three types of fiber-reinforced composite (FRC) molar crowns were tested on their fracture resistance and marginal adaptation under simulated oral stress conditions. Two glass fiber systems, one processed with a vacuum/pressure system, the other by manual fiber adaptation, and a polyethylene fiber system were evaluated. Every group consisted of 12 crowns. All crowns were luted adhesively on human molars and exposed to thermal cycling and mechanical loading (TCML: 6000 x 5 degrees C/55 degrees C; 1.2 x 10(6) x 50N; 1.66Hz). The marginal adaptation was evaluated through dye-penetration and analyzed semi-quantitatively with a scanning electron microscope. The fracture resistance was measured using a Zwick universal testing machine. The highest fracture resistance was observed on the glass-fiber systems (FibreKor/Sculpture 1875N +/- 596; Vectris/Targis 1726+/-542), though statistically, the polyethylene system (belleGlass/Connect 1388+/-620) was not significantly weaker. All systems exceeded the fracture resistance required to withstand the maximum masticatory forces expected in the molar region. The marginal adaptation generally had a tendency towards larger gaps after TCML. The crown/composite-cement bond deteriorated significantly after TCML with the manual fiber adaptation and the polyethylene fiber system. The cement/tooth bond strength depended on which composite-cement/dentin-adhesive system was used. CONCLUSION:The fracture resistance of molar crowns made of glass-fiber reinforced composite was higher than those of polyethylene fiber-reinforced composite crowns. However, there was no statistically significant difference. The marginal adaptation seems to depend on the fiber systems and composite-cement/dentin adhesive system used.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Behr M,Rosentritt M,Latzel D,Kreisler Tdoi
10.1016/s0300-5712(01)00007-0keywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
187-96issue
3eissn
0300-5712issn
1879-176Xpii
S0300-5712(01)00007-0journal_volume
29pub_type
杂志文章abstract：OBJECTIVES:The aim of this study was to investigate the novel mesocellular siliceous foams (MCF) containing CaCO3 nanoparticles (denoted as CMCF) combined with phosphoric acid could occlude dentinal tubules through the formation of biomimetic crystal barrier. METHODS:Ultrastructures of MCF and CMCF were examined by tr...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2019.02.007
更新日期：2019-04-01 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：OBJECTIVES:Three activated organofunctional silane coupling agents alone and blended with a non-functional cross-linker silane were evaluated as adhesion promoters in an experiment where a bis-GMA (bis-phenol-A-diglycidyldimethacrylate) resin was bonded to silicatized titanium. The adhesive performances of the silanes ...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2006.01.008
更新日期：2006-11-01 00:00:00
abstract：OBJECTIVES:To determine the longevity of heat-pressed glass ceramic inlays and onlays luted with solely light-curing composite resin. METHODS:The records of patients who had received a ceramic inlay or onlay at the Heidelberg University Department of Conservative Dentistry from 1993 to 2002 were evaluated. The mean ob...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2004.10.026
更新日期：2005-05-01 00:00:00
abstract：OBJECTIVES:Firstly, to evaluate the in vitro anti-erosion efficacy of a new mouthrinse formulation containing 450 ppm fluoride using profilometry and microindentation. Secondly, to compare fluoride uptake by erosive lesions from two mouthrinses containing different fluoride sources using dynamic secondary ion mass spec...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/S0300-5712(11)70004-5
更新日期：2010-11-01 00:00:00
abstract：OBJECTIVE:The aim of this study is to illustrate the graded proper properties of enamel from the outer (near occlusal surface) to the inner region (near enamel-dentine junction) in a cross-sectioned surface and discuss how natural design achieve the graded functions. METHODS:Nanoindentation, Raman spectroscopes, and S...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.03.019
更新日期：2009-08-01 00:00:00
abstract：OBJECTIVES:The objective of this study was to investigate the corrosion resistance of the prototype iron-platinum (FePt) magnets and non-encapsulated neodymium-iron-boron (NdFeB) magnets in three different pH environments. METHODS:The corrosion resistance of the magnets was studied using a corrosion indicator, the bre...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2004.02.007
更新日期：2004-08-01 00:00:00
abstract：OBJECTIVE:The intent of this project was to evaluate the efficiency of three commercial amalgam separators based on mercury and particle removal. METHODS:Dental wastewater samples were collected from a 54-chair dental clinic and a one chair private dental office. Atomic absorption spectrometry was used to measure merc...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00067-2
更新日期：2003-01-01 00:00:00
abstract：OBJECTIVES:It is speculated that saliva, with its mineral content, may possess a reparative effect on an early erosion which is characterised by softened surface and slight subsurface demineralisation in addition to a crater. This study aimed to determine the possible remineralisation of early enamel erosion by saliva....
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(01)00026-4
更新日期：2001-07-01 00:00:00
abstract：:The purpose was to present a descriptive report of the clinical performance of adhesive bridges fitted in a university department of restorative dentistry. The case records of 400 consecutive adhesive bridges fitted between November 1984 and June 1989 in the School of Clinical Dentistry, Queen's University, Belfast we...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(91)90122-f
更新日期：1991-08-01 00:00:00
abstract：BACKGROUND:Untreated dental caries in children remains a public health challenge in poor communities. OBJECTIVES:This prospective controlled clinical trial investigated the effectiveness of a new anti-caries agent, Nano Silver Fluoride (NSF), applied once a year to arrest caries in children. METHODS:One hundred thirt...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2014.05.017
更新日期：2014-08-01 00:00:00
abstract：INTRODUCTION:We assessed time trends in root caries experience, i.e. the sum of filled and carious root surfaces (FRS, CRS), and evaluated risk indicators of FRS/CRS in Germany. METHODS:FRS and CRS from repeated waves (1997, 2005, 2014) of the nationally-representative German Oral Health Studies were analyzed in 35-44...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.08.013
更新日期：2018-11-01 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:The aim of this article was to assess the clinical evidence for or against acupuncture and acupuncture-like therapies as treatments for temporomandibular joint disorder (TMD). DATA:This systematic review includes randomized clinical trials (RCTs) of acupuncture as a treatment for TMD compared to sham acupunc...
journal_title：Journal of dentistry
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jdent.2011.02.006
更新日期：2011-05-01 00:00:00
abstract：UNLABELLED:Silver diammine fluoride (SDF) is used as an anticaries agent; however, its mode of action is uncertain, whether chemical, physical, mechanical or antibacterial. As a preliminary study, the effect of SDF on hydroxyapatite (HAp) and gelatin (as a chemically-representative protein) was examined. METHODS:2.5mg...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2011.06.008
更新日期：2011-09-01 00:00:00
abstract：OBJECTIVES:Three luting cements based on zinc oxide phosphate, glass ionomer or composite resin were compared with respect to their influence on the anaerobic fermentation of sucrose by human oral bacteria. METHODS:Fifteen standardized samples of each of the three luting cements were prepared according to the manufact...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(98)00027-x
更新日期：1999-01-01 00:00:00
abstract：:The effects of sample thickness on the in vitro bond strength of two light-activated glass polyalkenoate cements to dentine have been investigated. The buccal and/or lingual surfaces of non-carious human third molar teeth were used for bonding. The tensile bond strengths to dentine of samples of the cements of 0.5 mm,...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(94)90123-6
更新日期：1994-08-01 00:00:00
abstract：:Memory and psychophysiological variables in persons with self-reported reactions to dental amalgam (amalgam patients: N=26) and in persons without such symptoms (controls: N=21) were compared. The groups were matched regarding age, education, and amount of amalgam. Wechsler Memory Scale-Revised was obtained for all su...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(03)00086-1
更新日期：2003-09-01 00:00:00
abstract：OBJECTIVES:This study aimed to evaluate posterior restorations placed in young adults, investigating the association between social determinants experienced during the life course and the quality of tooth fillings. METHODS:A representative sample (n=720) of all 5914 individuals who were born in Pelotas in 1982 was pro...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.02.010
更新日期：2013-11-01 00:00:00
abstract：:The effects of gamma radiation at therapeutic dosage levels on the physical properties of three anterior (two light-cured and one autocure) composites and a light-cured posterior composite were studied. Gamma radiation had no effect on the autocured composite but had varied effects on the light-cured systems. The diam...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(89)90071-7
更新日期：1989-08-01 00:00:00
abstract：OBJECTIVES:This prospective clinical study compared the performance of implant-retained (study group) and tooth-retained (control) zirconia based fixed dental prostheses (FDPs) with at least 4 units. The null-hypothesis stated that complication rates in both groups are equally distributed. METHODS:The study included p...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.10.011
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVES:Ultrasound may offer a possible alternative to rotary instruments for removing bone. This study was undertaken to analyse in vitro the various factors that influence the cutting of bone by an ultrasonic chisel. STUDY DESIGN:A block of bovine femur was moved in a longitudinal direction under a stationary ult...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(99)00044-5
更新日期：2000-01-01 00:00:00
abstract：OBJECTIVES:A monomer methacryloyloxydodecylpyridinium bromide (MDPB) has antibacterial activity before polymerization. Furthermore, the antibacterial agent is immobilized by the polymerization of MDPB and the resin-based material incorporating MDPB is able to show an antibacterial effect even after being cured. The pur...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(97)00013-4
更新日期：1998-03-01 00:00:00
abstract：:Silver-palladium alloys have been endorsed on clinical grounds as substitutes for gold alloys in posts and cores. However, carbon absorption during heating and casting can adversely affect the mechanical properties of silver-palladium alloys. In this study the tensile characteristics of endodontic posts cast in silver...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(89)90049-3
更新日期：1989-12-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to identify factors influencing the selection of restorative materials. METHODS:In 1992, a random sample of Finnish dentists working in the public and private health care sectors were asked to provide information on restorative treatments during a given period. The study material co...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/0300-5712(95)00070-4
更新日期：1996-07-01 00:00:00
abstract：OBJECTIVES:Sleep bruxism (SB), characterized by repetitive jaw-muscle activity during sleep, is often suggested as a cause of temporomandibular disorders (TMD), orofacial pain, and headache. This study aimed to challenge the relationship between jaw-muscle electromyographic (EMG) activity during sleep and jaw muscle sy...
journal_title：Journal of dentistry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jdent.2019.01.013
更新日期：2019-03-01 00:00:00
abstract：OBJECTIVES:To investigate the current prevalence of open access (OA) in the field of dentistry, the means used to provide OA, as well as the association between OA and citation counts. METHODS:PubMed was searched for dental articles published in 2013. The OA status of each article was determined by manually checking G...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2016.02.005
更新日期：2016-04-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to evaluate the internal adaptation and marginal properties of ceramic laminate veneers fabricated using pressable and machinable CAD/CAM techniques. MATERIALS AND METHODS:40 ceramic laminate veneers were fabricated by either milling ceramic blocks using a CAD/CAM system (group 1 n...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2012.04.019
更新日期：2012-08-01 00:00:00
abstract：OBJECTIVES:The objectives of this study were two-fold: (1) to determine (by surfometry) loss of deciduous and permanent enamel and dentine following 15days' exposure to a single low pH orange drink; and (2) to determine (by surfometry) loss of deciduous and permanent enamel and dentine following exposure to the product...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(99)00074-3
更新日期：2000-05-01 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
