Abstract：
:The conditions under which mechanical properties of dentine are tested influence the values recorded. The aims of this study were to examine the effect of hydration on the mechanical properties of primary carious dentine and to provide information on changes in hardness and modulus of elasticity change caused by the demineralizing caries process in dentine. Three primary molar teeth with untreated carious dentine were prepared for nano-indentation tests under both wet and dry conditions. Further tests were conducted on eight primary molars with untreated carious dentine under hydrated conditions. The mechanical properties of dehydrated carious dentine increased approximately 10-fold for hardness and 100-fold for the modulus of elasticity compared with hydrated dentine. The hardness and elastic modulus of the carious primary dentine deteriorated progressively toward the lesion cavity floor, ranging from 0.001 to 0.52 GPa and from 0.015 to 14.55 GPa, respectively, and could be fitted to a simple linear relationship when plotted in logarithmic scale vs. distance. The total depth of dentine affected was around 1100 microm parallel to the tubule direction. This depth was significantly greater than observed subjectively, implying that the demineralization process is more advanced than might be suspected on simple clinical examination.
journal_name
Eur J Oral Scijournal_title
European journal of oral sciencesauthors
Angker L,Nijhof N,Swain MV,Kilpatrick NMdoi
10.1111/j.1600-0722.2004.00123.xsubject
Has Abstractpub_date
2004-06-01 00:00:00pages
231-6issue
3eissn
0909-8836issn
1600-0722pii
EOS123journal_volume
112pub_type
杂志文章abstract：:The estimation of root caries prevalence and the identification of risk factors for decay depend upon the successful identification of carious lesions in epidemiological studies. Root surface restorations can either be placed to manage decay or cervical wear/sensitivity. The handling of data for restorations during ep...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2000.00767.x
更新日期：2000-02-01 00:00:00
abstract：:Plaque surface area after rinsing with a tea, containing low levels of fluoride, was evaluated in 30 human volunteers with a single-blind, one-operator, three-period, three-treatment cross-over study. The mouthwashes employed were: (1) tea (Darjeeling first flush:< 0.2 ppm F-), (2) Meridol(R), (3) control (tap water:<...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1600-0722.1995.tb01867.x
更新日期：1995-12-01 00:00:00
abstract：:Severe pain after third molar surgery is often encountered and more effective treatment regimes are warranted. The objective of this study was to evaluate if the combination of paracetamol and rofecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, improves analgesic effects following third molar surgery compared w...
journal_title：European journal of oral sciences
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1111/j.1600-0722.2006.00365.x
更新日期：2006-08-01 00:00:00
abstract：:Dental personnel and orthopedic surgeons are at risk when manually handling products containing methyl methacrylate (MMA). Dental products may also contain cross-linking agents such as ethylene glycol dimethacrylate (EGDMA) or 1,4-butanediol dimethacrylate (1,4-BDMA). Skin contact with monomers can cause hand eczema, ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2003.00064.x
更新日期：2003-10-01 00:00:00
abstract：:The aim of this in vitro study was to investigate the relationship between bacterial infections in carious dentin when detected by two different methods -- polymerase chain reaction (PCR), and a laser fluorescence device, DIAGNOdent. Dentin was removed every 300 micro m in the direction of the pulp chamber in 10 extra...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2004.00161.x
更新日期：2004-10-01 00:00:00
abstract：:At the mouse incisor tip the initially differentiated ameloblasts produce a thin, prism-free enamel, while further apically, in the immediate adjacent segment, the enamel thickness increases and the four-layered enamel of mouse incisor is formed. Comparative gene-expression profiling was carried out on RNA isolated fr...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2010.00722.x
更新日期：2010-04-01 00:00:00
abstract：:The aim of this study was to determine the pattern of the antibacterial activity of chlorhexidine digluconate (CHX) against mature Streptococcus mutans biofilms. Streptococcus mutans biofilms were formed on saliva-coated hydroxyapatite discs and then treated with 0-20% CHX, once, three times, or five times (1 min per ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12285
更新日期：2016-10-01 00:00:00
abstract：:Xylitol reduces plaque but the reduction mechanism is largely unknown. The main aim of the present study was to determine whether the xylitol-induced reduction in the amount of plaque and the number of mutans streptococci could be demonstrated in subjects with (presumably) high levels of xylitol-resistant (XR; not inh...
journal_title：European journal of oral sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1600-0722.1997.tb00196.x
更新日期：1997-04-01 00:00:00
abstract：:Hamster enamel protein extracts were analyzed by RP-HPLC and the isolated fractions by SDS-and Western blotting using polyclonal antibodies against recombinant mouse amelogenin and anti-peptide antibodies against the mouse exon 4-encoded sequence. Total RNA was extracted from enamel organ epithelia and, using a 3' rap...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1998.tb02190.x
更新日期：1998-01-01 00:00:00
abstract：:The purpose was to investigate if antigenic fragments of aggrecan and cartilage oligomeric matrix protein (COMP) are detectable by enzyme-linked immunosorbent assay in lavage fluids from the temporomandibular joint (TMJ) and to examine if the relative content of these cartilage markers changes during development of os...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1997.tb00254.x
更新日期：1997-08-01 00:00:00
abstract：:The aim of this study was to evaluate and to test the psychometric properties of a Swedish version of the revised Dental Beliefs Survey (DBS-R) in different patient groups and in a non-clinical sample of students. It was hypothesized that negative dental beliefs, assessed using the DBS-R, would discriminate between fe...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2006.00358.x
更新日期：2006-06-01 00:00:00
abstract：:The salivary pellicle is a negatively charged protein film, to which oral bacteria readily adhere. Chitosans are cationic biomolecules with known antimicrobial properties that can be modified in different ways to enhance its antimicrobial activity. Here, we determined the changes in surface chemical composition using ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2007.00454.x
更新日期：2007-08-01 00:00:00
abstract：:The Oral Impacts on Daily Performance (OIDP) instrument was translated into Norwegian and reviewed for cultural and conceptual equivalence by a group of bilingual academics. A sample of employees from the University of Bergen completed the Norwegian OIDP frequency questionnaire twice. A total of 173 and 108 subjects p...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2005.00225.x
更新日期：2005-08-01 00:00:00
abstract：:This study investigated the effect of low-power, non-thermal atmospheric pressure plasma (NT-APP) treatments, in pulsed and conventional modes, on the adhesion of resin composite to dentin and on the durability of the bond between resin composite and dentin. A pencil-type NT-APP jet was applied in pulsed and conventio...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12153
更新日期：2014-12-01 00:00:00
abstract：:Proteolytic enzymes with gelatinolytic activity in the synovial fluid (SF) of temporomandibular joint (TMJ) arthropathies were assayed by gelatin-impregnated gel enzymography. SF samples were collected from 10 TMJs in patients with closed lock (CL) condition and 5 TMJs from asymptomatic healthy volunteers. Two protein...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1046/j.0909-8836.1998.eos106603.x
更新日期：1998-12-01 00:00:00
abstract：:So-called secondary caries may develop in the cement gap between the tooth and the bonded restoration. Cement materials with a low susceptibility to biofilm formation are therefore desirable. In the present study, the adhesion of Strepococcus mutans onto three adhesive (Multilink Automix, RelyX Ultimate, and Panavia V...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12355
更新日期：2017-08-01 00:00:00
abstract：:We sought to investigate site-specific expression of bone-regulatory factors expressed by human dental follicles and to compare the stimulated expression of tumour necrosis factor (ligand) superfamily, member 11/tumour necrosis factor receptor superfamily, member 11b (RANKL/OPG) in human dental follicle cells (HDFCs) ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12568
更新日期：2018-12-01 00:00:00
abstract：:The eda mouse gene is linked with anomalies of ectodermal derivatives, such as hair, glands, and teeth. The palatal rugae (oral mucosa foldings on the hard palate) are also ectodermal derivatives. Therefore, we searched for and compared palatal rugae anomalies of Tabby mice bearing a mutation in the eda gene with thei...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2007.00482.x
更新日期：2007-12-01 00:00:00
abstract：:Salivary tissue kallikrein is stored in an active form in human salivary glands. Pre-kallikrein has been demonstrated in mixed saliva, but it is not clear if the various salivary glands contribute equally. This study set out to determine if pre-kallikrein is present in human parotid and submandibular salivas at rest, ...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1034/j.1600-0722.2001.00091.x
更新日期：2001-10-01 00:00:00
abstract：:Saliva contacting with solid surfaces in the oral cavity forms a coat termed the pellicle. However, its formation is not fully understood. Although indications for the existence of supramolecular pellicle precursors have been reported, the possible relationship between them and pellicle formation is unclear. This stud...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2004.00138.x
更新日期：2004-08-01 00:00:00
abstract：:The objective of this clinical study was to assess the internal and marginal accuracy of computer-aided design/computer-aided manufacturing (CAD/CAM)-generated four-unit all-ceramic posterior fixed dental prostheses (FDPs). The data were compared with the results of three-unit metal-ceramic and all-ceramic FDPs that w...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00580.x
更新日期：2008-12-01 00:00:00
abstract：:The present study investigated whether daily systemic administration of docosahexaenoic acid (DHA) in rats could attenuate the hyperexcitability of trigeminal spinal nucleus caudalis (SpVc) neurons associated with hyperalgesia. Inflammation was induced in rats by injecting complete Freund's adjuvant into the whisker p...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12571
更新日期：2018-12-01 00:00:00
abstract：:Positive effects of irradiation with ultraviolet (UV) light or treatment with non-thermal plasma on titanium and zirconia surfaces have been described in various studies. The aim of this study was to assess and compare the changes in the physicochemical surface conditions of titanium and zirconia surfaces after a shor...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12400
更新日期：2018-04-01 00:00:00
abstract：:In the present study the crystalline phases of calcium sulphate present in various commercially available alginate impression materials were identified by means of x-ray diffraction. The diffractograms obtained indicated that the predominant crystalline phase in most materials was calcium sulphate dihydrate and confir...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.1996.tb00156.x
更新日期：1996-10-01 00:00:00
abstract：:Ectopic tooth transplants are known to receive rich innervation of local neurons, but the precise location and structural features of neurites in the pulp and periodontal ligament (PDL) of such transplants are unclear. In this experiment, the molar tooth germs of rat embryos and incisors of young rats were subcutaneou...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2008.00546.x
更新日期：2008-08-01 00:00:00
abstract：:Axonal regeneration of the inferior alveolar nerve (IAN) is a therapeutic target for functional recovery after peripheral nerve injury. Rifampicin exerts anti-apoptotic, anti-inflammatory, and anti-oxidant effects on nerve tissues that may enhance functional recovery after peripheral nerve injury. The aim of the prese...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12691
更新日期：2020-06-01 00:00:00
abstract：:Current interest in dental erosion has led to increasing attention to ways in which potentially erosive products might be modified. Information on how this could be achieved has been hard to gather, and has focused chiefly on possibilities in reformulating soft drinks. The bulk of the work published on this relates to...
journal_title：European journal of oral sciences
pub_type： 杂志文章,评审
doi：10.1111/j.1600-0722.1996.tb00071.x
更新日期：1996-04-01 00:00:00
abstract：:Streptococcus oligofermentans is a novel strain of oral streptococcus that can specifically inhibit the growth of Streptococcus mutans. The aims of this study were to assess the growth of S. oligofermentans and the ability of S. oligofermentans to inhibit growth of Streptococcus mutans at different pH values. Growth i...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12102
更新日期：2014-02-01 00:00:00
abstract：:The aim of this study was to compare the oral health-related behaviors of unemployed people with those of employed people and to assess whether they differ according to the length of unemployment. This study is part of the Health 2000 Survey in Finland. The cross-sectional data were based on interviews and questionnai...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/eos.12276
更新日期：2016-08-01 00:00:00
abstract：:The amelogenin proteins are required for normal enamel development, and the most abundant amelogenins expressed from alternatively spliced mRNAs are M180 and leucine-rich amelogenin protein (LRAP). The X-Chromosomal Amelogenin (Amelx) null [knockout (KO)] mouse has an enamel defect similar to human X-linked amelogenes...
journal_title：European journal of oral sciences
pub_type： 杂志文章
doi：10.1111/j.1600-0722.2011.00882.x
更新日期：2011-12-01 00:00:00
