Abstract:
:The creatinine-adjusted urinary concentration of mercury in 73 schoolchildren with a mean age of 12 years was determined. In addition, the number of amalgam restorations and their size, prevalence of allergy, and days absent from school due to illness were recorded for each individual. A significant positive correlation (r = 0.55) was found between urine Hg and extent of amalgam restorations, but no correlation existed between urine Hg and allergy or between urine Hg and absence from school due to illness. Neither could any correlation be found between extent of amalgam restorations and either allergy or absence from school.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Olstad ML,Holland RI,Wandel N,Pettersen AHdoi
10.1177/00220345870660061701subject
Has Abstractpub_date
1987-06-01 00:00:00pages
1179-82issue
6eissn
0022-0345issn
1544-0591journal_volume
66pub_type
杂志文章abstract::In an attempt to determine the degree of co-activation present in selected cervical muscles during clenching, we instructed 12 male subjects to produce four brief maximum voluntary contraction (MVC) efforts (clenching) in a position of maximum intercuspation. Surface EMG activity was recorded bilaterally from the mass...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345930720110701
更新日期:1993-11-01 00:00:00
abstract::Tooth agenesis is one of the most common developmental anomalies affecting function and esthetics. The paired-domain transcription factor, Pax9, is critical for patterning and morphogenesis of tooth and taste buds. Mutations of PAX9 have been identified in patients with tooth agenesis. Despite significant progress in ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034517729322
更新日期:2018-02-01 00:00:00
abstract::Our observations confirm the previously reported observation that multinucleated cells develop within a two-week period in cat bone-marrow cultures. Calcitonin induces cytoplasmic contraction in these multinucleated cells, which indicates that they resemble osteoclasts. After seven days of culture, cat bone-marrow cul...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345860650070201
更新日期:1986-07-01 00:00:00
abstract::Smoking is a major risk of periodontal diseases. At the site of first contact, the gingiva is exposed to aromatic amines and polycyclic hydrocarbons. These are metabolized by the N-acetyltransferases (NAT), leading to local detoxification and/or activation reactions contributing to the risk of periodontal destruction ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910208100512
更新日期:2002-05-01 00:00:00
abstract::Elemental analysis of two precious alloyceramic systems revealed the accumulation of Sn atoms within the interaction zone of couples subjected to a range of metal oxidation time; and varying total firing times. The source of Sn atoms which accumulated within the interaction zone was the opaque porcelain layer which co...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560090301
更新日期:1977-09-01 00:00:00
abstract::Wall-to-wall (WTW) polymerization contraction of filled and unfilled chemically and photo-initiated resins was studied in relation to the WTW distance. In an experimental set-up, the resins were bonded to two opposing disks, and the axial (WTW) displacement resulting from the polymerization shrinkage was measured cont...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345890680010701
更新日期:1989-01-01 00:00:00
abstract::Periodontal disease is a bacterial infection that results in inflammatory destruction of tissues that support the teeth, including connective tissue and bone. In this study, we report that transgenic mice that overexpress the 17-kDa form of IL-1alpha in the basal layer of oral mucosal epithelium develop a syndrome tha...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910408301010
更新日期:2004-10-01 00:00:00
abstract::A double-blind randomized clinical trial was performed in 6- to 7-yr-old schoolchildren to evaluate, in a 30-mo period, whether the caries increment on the distal surface of the second primary molars adjacent to permanent first molars sealed with fluoride release compounds would be lower with respect to those adjacent...
journal_title:Journal of dental research
pub_type: 杂志文章,随机对照试验
doi:10.1177/0022034514535808
更新日期:2014-07-01 00:00:00
abstract::The limited durability of resin-dentin bonds severely compromises the lifetime of tooth-colored restorations. Bond degradation occurs via hydrolysis of suboptimally polymerized hydrophilic resin components and degradation of water-rich, resin-sparse collagen matrices by matrix metalloproteinases (MMPs) and cysteine ca...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034510391799
更新日期:2011-08-01 00:00:00
abstract::Although it is known that diabetes impairs oral wound healing, relatively little is known about the cellular parameters affected, particularly in connective tissue. This study investigated the hypothesis that diabetes impairs connective tissue formation in healing gingiva, and that impaired healing is associated with ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510362960
更新日期:2010-06-01 00:00:00
abstract::Dental caries can be described as a dysbiosis of the oral microbial community, in which acidogenic, aciduric, and acid-adapted bacterial species promote a pathogenic environment, leading to demineralization. Alkali generation by oral microbes, specifically via arginine catabolic pathways, is an essential factor in mai...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034517707512
更新日期:2017-07-01 00:00:00
abstract::Mandibular prognathism is a common dentofacial phenotype with a substantial genetic component; however, few susceptibility loci have been mapped. Ethnicity is a risk factor for mandibular prognathism, and a relatively high prevalence is observed in Asian populations. The hypothesis of this study suggested that a speci...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510382546
更新日期:2011-01-01 00:00:00
abstract::The experiment was designed to determine the pathway taken to the brain stem by periodontal afferents responsible for the digastric jaw-opening reflex induced by tooth-tapping. Cutting the trigeminal sensory roots of anesthetized decerebrate cats eliminated the ipsilateral periodontally-induced reflex, although the st...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345870660100401
更新日期:1987-10-01 00:00:00
abstract::Lactoferrin is one of a number of multifunctional proteins that are present in or on all mucosal surfaces throughout the body. Levels of lactoferrin are consistently elevated in inflammatory diseases such as arthritis, inflammatory bowel diseases, corneal disease, and periodontitis. Single-nucleotide polymorphisms (SN...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034515577413
更新日期:2015-06-01 00:00:00
abstract::The effects of Escherichia coli endotoxin upon mouse L929 cell proliferation, DNA synthesis, protein synthesis, and proline incorporation were determined. It was found that a level of endotoxin which inhibited cell proliferation prompted a similar inhibition of DNA synthesis and overall cell protein synthesis. In cont...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345790580061301
更新日期:1979-06-01 00:00:00
abstract::Incisors of Mg-deficient rats showed a marked inhibition of eruption and a decrease in mitoses of apical tissues. Cortisone administration resulted in some increase in eruption rate and cell division though these remained below the values of Mg-supplemented controls. An improvement in gross condition and a less severe...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560122901
更新日期:1977-12-01 00:00:00
abstract::The relationship between occlusal stimuli and a hypofunctional periodontal ligament (PDL) structure has been reported, though changes in occlusal recovery conditions were still unclear. Nitric oxide (NO) produced by NO synthase (NOS) is considered a factor for vascular and immune system control, and it increases accor...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910408300413
更新日期:2004-04-01 00:00:00
abstract::Dentin sialoprotein (DSP) and dentin phosphoprotein (DPP) are expressed as a single mRNA transcript coding for a large precursor protein termed dentin sialophosphoprotein (DSPP). DSP, DPP, and DSPP have been considered to be tooth-specific. To test for the expression of the dspp gene in bone, we performed Western immu...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910208100607
更新日期:2002-06-01 00:00:00
abstract::The aim of this study was to test the potential of liposomes as drug carriers to the ulcerated oral mucosa. Radioactive triamcinolone acetonide palmitate (3H-TRMAp) was encapsulated in large multilamellar lipid vesicles and served as the test lotion. 3H-TRMAp in solution served as control. Forty-six hamsters were divi...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345860650090501
更新日期:1986-09-01 00:00:00
abstract::Selected reference and freshly isolated strains of Streptococcus mitis (mitior) and Streptococcus sanguis were assayed for cell-associated neuraminidase activity by their ability to hydrolyze [3H-] sialyllactitol. A cell-associated neuraminidase was detected with S. mitis and S. sanguis serotype II (reclassified as S....
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345840630020201
更新日期:1984-02-01 00:00:00
abstract::When one uses composite resins, the curing contraction, the stiffness of the material, and the strength of the vulnerable dentinal bond are important factors in determining the marginal adaptation of the restoration. Calculations based on these intrinsic material properties have indicated that both bulk placement and ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345880670050901
更新日期:1988-05-01 00:00:00
abstract::The development of predictive and rapid methods for the assessment of the anticaries activity of topical fluorides has been a long-standing objective of caries researchers. These methods can provide useful benefits in a number of applications, ranging from the identification of novel agents to progress into clinical t...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/002203459207100S19
更新日期:1992-04-01 00:00:00
abstract::Using glycoproteins and milk oligosaccharides as substrate acceptors, we demonstrated at least two fucosyltransferases in human parotid saliva. One enzyme transferred L-fucose from GDP-fucose to the C-3 position of N-acetylglucosamine or glucose residue of oligosaccharide chains, and the other transferred to the C-4 p...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345830620070701
更新日期:1983-07-01 00:00:00
abstract::The differential diagnosis of dental wear lesions affects their clinical management. We hypothesized that surface texture parameters can differentiate simulated erosion, abrasion, and erosion-abrasion lesions on human enamel and dentin. This in vitro study comprised 2 parts (both factorial 4 × 2), with 4 lesion types ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034516629941
更新日期:2016-05-01 00:00:00
abstract::Gingival overgrowth tissues have thickened connective tissue stroma, sometimes accompanied by the increased presence of collagen fibers, thickened epithelia, and elongated rete pegs. We have previously shown that expression of CCN2, also known as connective tissue growth factor (CTGF), correlates positively with the d...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034511404703
更新日期:2011-07-01 00:00:00
abstract::The incorporation of polymerizable cationic monomers has been attempted to generate dental resinous materials with antibacterial activity. This study tested the hypothesis that a dental adhesive containing a cationic monomer, methacryloxylethyl cetyl dimethyl ammonium chloride (DMAE-CB), would influence biofilm format...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034509334499
更新日期:2009-04-01 00:00:00
abstract::This study indicated that a clear relationship exists between silicon and fluoride. We have also demonstrated a probable surface enamel silicon effect that increases fluoride uptake. The complex set of relationships described in the surface chemistry of calcium, tin, and zirconium with fluoride, hydroxide, phosphate, ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550050601
更新日期:1976-09-01 00:00:00
abstract::Previous studies have clearly established the down-regulating effect of a sucrose-rich diet on primary dentinogenesis in rat molars. Earlier observation of the negative effect of a high-sucrose diet on a parotid function involved in the control of intradentinal solute movement led us to hypothesize that parotid gland ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910208100407
更新日期:2002-04-01 00:00:00
abstract::Symphyseal secondary cartilage is important for mandibular development, but the molecular mechanisms underlying its formation remain largely unknown. Here we asked whether Indian hedgehog (Ihh) regulates symphyseal cartilage development and growth. By embryonic days 16.5 to 18.5, Sox9-expressing chondrocytes formed wi...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510397836
更新日期:2011-05-01 00:00:00
abstract::Much research has been devoted to the study of etched enamel, since it is critical to bonding. Currently, there are no precise data regarding the etched-enamel specific surface area. The aim of this study was to characterize, by two different methods, the surface of human dental enamel in vitro after being etched. It ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910808700607
更新日期:2008-06-01 00:00:00