Abstract:
:Samples of a base mental alloy were cast and welded together using a conventional welding procedure. The joints were loaded and placed either in a corrosive environment or in air for varying time periods. The tensile and shear strength of the joints was unaffected by the corrosive environment, and the joints, despite some internal defects, appeared suitable for clinical use.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
MacEntee MI,Hawbolt EB,Zahel JIdoi
10.1177/00220345810600021101subject
Has Abstractpub_date
1981-02-01 00:00:00pages
154-8issue
2eissn
0022-0345issn
1544-0591journal_volume
60pub_type
杂志文章abstract::After cheek pouch carcinomas were induced in hamsters by the application of dimethylbenzanthracene (DMBA) to the right pouch for 13 weeks, the animals were divided into four groups and observed for seven more weeks. The control group received no further treatment, two experimental groups had incisional biopsies perfor...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345860650061401
更新日期:1986-06-01 00:00:00
abstract::Four disclosant dyes were tested for antimicrobial activity against 27 oral reference strains and five non-oral human pathogens. Erythrosine and fluorescein inhibited most gram-positive and gram-negative organisms associated with dental plaque, and were bactericidal to selected strains. Fast green and brilliant blue d...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345830620071601
更新日期:1983-07-01 00:00:00
abstract::An adhesive opaque resin for veneering on cast metal was developed with 4-methacryloxyethyl trimellitate anhydride and poly (methyl methacrylate)-coated titanium dioxide prepared by aqueous phase polymerization. The opaque resin was a modified 4-META/MMA-TBB resin. The powder consisted of 20% of the encapsulated mater...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345880670010501
更新日期:1988-01-01 00:00:00
abstract::Lipopolysaccharide (LPS) has been shown to be a prominent pathogenic factor in inflammatory bone loss. However, knowledge of the mechanisms involved is limited. The role of the SDF-1/CXCR4 (Stromal-derived factor-1 and its unique chemokine receptor) axis in LPS-induced bone loss has not been studied. The aim of this s...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510379019
更新日期:2011-02-01 00:00:00
abstract::The aim of this study was to compare the effectiveness of dexamethasone administration following arthrocentesis of the temporomandibular joint (TMJ) with a placebo (saline). Twenty-eight participants with TMJ arthralgia were randomly assigned to two groups of a parallel double-blind RCT. In both groups, an arthrocente...
journal_title:Journal of dental research
pub_type: 杂志文章,随机对照试验
doi:10.1177/0022034511431260
更新日期:2012-02-01 00:00:00
abstract::The lack of a reliable bond test has hindered the elucidation of the mechanism for porcelain-metal bonding in dental systems, because a test capable of detecting differences among porcelain-metal bonds of various qualities is required before the reasons for these differences may be ascertained. A method was developed ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345880670020801
更新日期:1988-02-01 00:00:00
abstract::Streptococcus mutans strain JH1005 is a mutant that produces levels of bacteriocin activity three-fold-elevated than those produced by its parent, JH1001. A single infection regimen with JH1005 was found to result in persistent colonization of the teeth of all three adult subjects tested. This is a significant improve...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345870660060101
更新日期:1987-06-01 00:00:00
abstract::The present study investigated a concept for additional cross-linking of dental polymers, by which resistance to wear of resin composites might be increased. Bifunctional ketones were added to monomer mixtures, which were then made light-curing and loaded with filler. The monomer mixtures were varied with respect to t...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345920710111601
更新日期:1992-11-01 00:00:00
abstract::The aims of this work were (a) to assess the oral bioavailability of fluoride delivered from dentifrices and (b) to test for a possible link between the results and clinical data obtained with the same dentifrices. Oral fluoride concentrations were measured in samples of saliva and plaque taken from seven subjects, af...
journal_title:Journal of dental research
pub_type: 临床试验,杂志文章,评审
doi:10.1177/002203459207100S09
更新日期:1992-04-01 00:00:00
abstract::Microducers and modified cephalometric roentgenogram techniques were used to study maximum biting forces and moments in an adult male. The force at the second molar was approximately 10% greater than that at the first molar. At the second molar, the moment of force was approximately 15% less than its value at the firs...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345750540010401
更新日期:1975-01-01 00:00:00
abstract::Disks of dentin taken from extracted human teeth demonstrated the optical property of the magnification/reduction effect. When images were transmitted from a pulpal-to-occlusal direction, the images were magnified. When the disks were inverted, the images were reduced in size. The images were slightly distorted but cl...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550041601
更新日期:1976-07-01 00:00:00
abstract::Components of resin materials may damage DNA, leading to genetic alterations in mammalian cells. Here, monomers were analyzed for the induction of chromosomal aberrations indicated by micronuclei induced in V79 cells. A dose-related increase in the numbers of micronuclei was observed with triethyleneglycol dimethacryl...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345010800070401
更新日期:2001-07-01 00:00:00
abstract::Macrophage colony-stimulating factor (CSF-1) is a key regulatory cytokine for amelogenesis, and ameloblasts synthesize CSF-1. We hypothesized that PDGF stimulates DNA synthesis and regulates CSF-1 in these cells. We determined the effect of PDGF on CSF-1 expression using MEOE-3M ameloblasts as a model. By RT-PCR, MEOE...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910808700105
更新日期:2008-01-01 00:00:00
abstract:UNLABELLED:Dental caries affects most adults worldwide; however, the risk factors for dental caries do not necessarily exert their effects uniformly across all tooth surfaces. Instead, the actions of some risk factors may be limited to a subset of teeth/surfaces. Therefore, we used hierarchical clustering on tooth surf...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034512463241
更新日期:2013-01-01 00:00:00
abstract::Cultures of Streptococcus mutans MFe28 (serotype h) were grown with differing extracellular polysaccharide (EPS) content. Biochemical and physicochemical characteristics considered relevant to caries were measured. Acid production parameters measured in a pH-stat were: Vm = 0.76 +/- 0.14 mumol/g/sec (wet weight); appa...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345880670060101
更新日期:1988-06-01 00:00:00
abstract::In vitro wear data were determined for nine experimental composites and compared with two-year clinical data. The in vitro tests included single-pass wear and two-body abrasion. The in vivo data were obtained between 1978 and 1980 for 54 class 2 posterior composite restorations in 25 patients. Correlations between the...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345830620101801
更新日期:1983-10-01 00:00:00
abstract::Pulpal blood flow was determined in 32 dogs ranging in age from 6 weeks to 18 months by the isotope fractionation method incorporating diffusible and nondiffusible tracers. Dogs were placed into selected age groups by the developmental status of the canine teeth. For the teeth sampled, the maxillary first, second, and...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560102601
更新日期:1977-10-01 00:00:00
abstract::Patients suffering from temporomandibular dysfunction exhibit clinical findings such as fatigue, painful muscles, and muscles that are tender to palpation, not only in the temporomandibular area, but also in the neck/shoulder region. The mechanisms behind this are not known, although previous studies of similar spread...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790101401
更新日期:2000-10-01 00:00:00
abstract::Autosomal dominant mutations in PTH1R segregate with primary failure of eruption (PFE), marked by clinical eruption failure of adult teeth without mechanical obstruction. While the diagnosis of PFE conveys a poor dental prognosis, there are no reports of PFE patients who carry PTH1R mutations and exhibit any other ske...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034513513588
更新日期:2014-02-01 00:00:00
abstract::Previous investigations have shown a clear association between the presence of the enzyme aspartate aminotransferase (AST) in gingival crevicular fluid (GCF) and clinical evidence of periodontal disease in humans, as well as in the beagle dog model. This paper describes a 26-week study that uses the beagle dog model o...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345910700061501
更新日期:1991-06-01 00:00:00
abstract::Fluoride content of drinking water is an important criterion in prescribing fluoride supplements. The majority of practicing dentists and physicians prescribe fluoride supplements, yet many apparently are unaware of the fluoride levels in their patients' drinking water. Characteristics of North Carolina (NC) dentists,...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345860650011301
更新日期:1986-01-01 00:00:00
abstract::Adhesion of epithelium to the extracellular matrix is crucial for the maintenance of systemic and oral health. In the oral cavity, teeth or artificial dental implants penetrate the soft tissue of the gingiva. In this interface, gingival soft tissue needs to be well attached via the epithelial seal to the tooth or impl...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034511402207
更新日期:2011-12-01 00:00:00
abstract::The sensitizing potential of three periodontal dressing materials was evaluated by the guinea pig maximization test. The results indicated a difference in the sensitization rate of the three materials. ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345780570110801
更新日期:1978-11-01 00:00:00
abstract::When measured once, psychological stress predicts development of painful temporomandibular disorder (TMD). However, a single measurement fails to characterize the dynamic nature of stress over time. Moreover, effects of stress on pain likely vary according to biological susceptibility. We hypothesized that temporal es...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034515595043
更新日期:2015-09-01 00:00:00
abstract::We have investigated the role of the activation of nuclear poly(ADP-ribose) polymerase (PARP) enzyme, a mediator of downstream nitric oxide toxicity, using a combined approach of pharmacological inhibition and genetic disruption in a ligature-induced-periodontitis model in rats and mice. Immunohistochemical analysis r...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910308201210
更新日期:2003-12-01 00:00:00
abstract::Polynomial and catenary equations were fit by least square error methods to the dentitions of seven children with "normal" occlusion. Mean and mean square error were then used to analyze accuracy of curve fits and asymmetries of arches. A lack of congruency for the "lines of occlusion" common to the maxilla and mandib...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345750540060501
更新日期:1975-11-01 00:00:00
abstract::Knoop hardness measurements of UV-polymerized dental composites showed that, at a certain depth below the surface, the degree of cure rapidly decreases. The depth of cure was found to be critically dependent on the UV source and exposure time used. A theoretical model was derived which was in quantitative accord with ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345800590050901
更新日期:1980-05-01 00:00:00
abstract::Breastfeeding is important for health and development. Yet, the interaction between breastfeeding duration and usage of fluoridated water on caries experience has not been investigated. This study examined exposure to fluoridation as an effect modifier of the association between breastfeeding duration and caries. The ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034519843487
更新日期:2019-07-01 00:00:00
abstract::The efficacy of a new remineralization system was determined in vivo by maintaining a low concentration of approximately 1 ppm fluoride for 48 hrs against a demineralized human tooth. Human subjects were selected who wore removable partial dentures containing two or more of the demineralized teeth with film system. Th...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345800590030501
更新日期:1980-03-01 00:00:00
abstract::Bone marrow-derived mesenchymal stem/progenitor cells (BMSCs) are commonly used in regeneration therapy. The current primary source of BMSCs is the iliac crest; however, the procedure is associated with various burdens on the patient, including the risk of pain and infection. Hence, the possibility to collect BMSCs fr...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034514549377
更新日期:2014-11-01 00:00:00