Abstract:
:The expired air of a group of 48 persons, 40 with and eight without dental amalgam restorations, was analyzed for its mercury content before and after chewing. Expired air samples were collected in polyethylene bags, and a known quantity of each was pumped into the mercury detector for measurement. The results showed that examined subjects with dental amalgams had higher pre-chewing mercury levels in their expired air than those without amalgams. After chewing, these levels were increased an average of 15.6-fold in the former and remained unchanged in the latter group. It was concluded that in situ dental amalgams can increase the level of mercury in expired air.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Svare CW,Peterson LC,Reinhardt JW,Boyer DB,Frank CW,Gay DD,Cox RDdoi
10.1177/00220345810600090601subject
Has Abstractpub_date
1981-09-01 00:00:00pages
1668-71issue
9eissn
0022-0345issn
1544-0591journal_volume
60pub_type
杂志文章abstract::An acidified gel system was used to produce artificial caries lesions in root surfaces. Radiopaque surface layers were found with 47% of the lesions. Demineralized bodies of the lesion and mineralized zones of banding were seen in all lesions when examined by microradiography. Cementum and dentin seemed to respond to ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345850640050401
更新日期:1985-05-01 00:00:00
abstract::Inorganic polyphosphate [Poly(P)] is especially prevalent in osteoblasts. We tested the hypothesis that Poly(P) stimulates osteoblastic differentiation and polyphosphate metabolism for bone formation. The osteoblast-like cell line, MC 3T3-E1, was cultured with Poly(P), and gene expression was evaluated by real-time re...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510363096
更新日期:2010-05-01 00:00:00
abstract::The purpose of the work described here was to investigate the mechanisms involved in the binding of salivary alpha-amylase to Streptococcus gordonii NCTC 7868 (Challis). Of six types of alpha-amylase studied, only mammalian forms of the enzyme were found to bind to S. gordonii cells. Salivary alpha-amylase binding was...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345900690110701
更新日期:1990-11-01 00:00:00
abstract::Epstein-Barr virus (EBV), in addition to its transforming properties, contributes to the pathogenesis of several inflammatory diseases. Here, we investigated its involvement in oral lichen planus (OLP), a common autoimmune-like disease of unknown etiopathogenesis that can display a malignant potential. EBV-infected ce...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034518788282
更新日期:2018-12-01 00:00:00
abstract::In an earlier paper on bench-scale simulation of the caries process, it was shown that the passage of ions through ion-permselective barriers could have profound effects on the composition of the solution within the "lesion" at steady state. As indicated in earlier papers, these changes are produced by unequal rates o...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345860650090201
更新日期:1986-09-01 00:00:00
abstract::This case-control study evaluated the association of headache and other co-morbid pain with temporomandibular disorder (TMD) pain in adolescents and explored the temporal co-variance of headache and TMD pain. In a population-based sample of 12- to 19-year-olds, 350 patients with self-reported TMD pain and 350 healthy ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034513496255
更新日期:2013-09-01 00:00:00
abstract::Previously, we reported that the rate (R) of hydroxyapatite dissolution in acetic, lactic, and phosphoric acid solutions is a function of the degree of saturation with respect to the dissolving mineral, DS (defined as the ratio of the mean ionic activity product for hydroxyapatite [Ca5OH(PO4)3] in solution to its solu...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345990780070701
更新日期:1999-07-01 00:00:00
abstract::Cardiovascular disease is a common cause of morbidity and premature mortality. Cardiovascular disease can be prevented when risk factors are identified early. Calcified carotid artery atheromas (CCAAs), detected in panoramic radiographs, and periodontitis have both been associated with increased risk of cardiovascular...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034519885362
更新日期:2020-01-01 00:00:00
abstract::The filtration and diffusion of tritiated water through dentin disks were measured ina split-chamber diffusion cell. The dentin had been cut with a diamond disk and the surfaces modified with a carbide fissure bur or diamond bur. Disks were given a secondary burnishing treatment with a blank bur or a modified blank bu...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345810600061101
更新日期:1981-06-01 00:00:00
abstract::The discovery of the phenomenon "osseointegration," or functional ankylosis, has led to the development of oral implants with high clinical performance. Consequently, the placement of titanium implants has changed the paradigms of restorative dentistry. Implants are used to prevent placing reconstructions anchored on ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034519853574
更新日期:2019-11-01 00:00:00
abstract::The main purpose of this paper is to review the various methods used for evaluation of fluoride retention in saliva, plaque, and enamel following application of topical anti-caries treatments such as F dentifrices and F mouthwashes. Such methods monitor delivery of fluoride to the site of action, the mouth, and so can...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/002203459207100S29
更新日期:1992-04-01 00:00:00
abstract::Previous studies suggest that salivary and pulp-derived host enzymes, matrix metalloproteinases (MMPs), may be involved in dentin caries pathogenesis. To study the inhibition of acid-activated human salivary MMPs by non-antimicrobial chemically modified tetracyclines (CMTs), we used a functional activity assay with 12...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345010800061301
更新日期:2001-06-01 00:00:00
abstract::During porcelainization the non-preoxidized alloy develops a Be-rich reaction zone in the interface which separates a Be-depleted alloy from a Li and (to a lesser extent Na) depleted region of the ceramic. Thus, Be diffuses to the interface through the alloy Be degrees leads to Be++ + 2 e- occurs at the interface; som...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345780570021501
更新日期:1978-02-01 00:00:00
abstract::Numerous studies have demonstrated that many older adults have problems chewing, pain, difficulties in eating, and problems in social relationships because of oral disorders. However, it is not clear if these functional and psychosocial outcomes affect broader psychological well-being and life satisfaction. Consequent...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790041301
更新日期:2000-04-01 00:00:00
abstract::Stress analyses are presented for a second mandibular premolar with a class 1 amalgam restoration. The effects of amalgam setting and thermal expansions are examined. An axisymmetric representation of the structure is used and the analyses are carried out by the finite element method. Lined and unlined restorations ar...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345780570051101
更新日期:1978-05-01 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 fatigue crack growth resistance of dentin was characterized as a function of depth from the dentino-enamel junction. Compact tension (CT) specimens were prepared from the crowns of third molars in the deep, middle, and peripheral dentin. The microstructure was quantified in terms of the average tubule dimensions a...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034511408429
更新日期:2011-08-01 00:00:00
abstract::In this study, the effects of eugenol on human polymorphonuclear (PMN) cell migration and chemiluminescence were examined in vitro. Utilizing zymosan-activated serum or crude Bacteroides sonicate fractions as chemotractants, we found that eugenol inhibits PMN migration at 6.6 X 10(-2) to 6.6 X 10(-5) mol/L (P less tha...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345870660031401
更新日期:1987-03-01 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::Despite recent advances revealing genetic factors influencing caries susceptibility, questions regarding the model of inheritance involved are yet to be addressed. We conducted a Complex Segregation Analysis on decayed teeth in a sample of homogenous, isolated families recruited from the Brazilian Amazon. A dominant, ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034510397614
更新日期:2011-06-01 00:00:00
abstract::Early childhood caries (ECC) is a chronic disease affecting the oral health of children globally. This disease is multifactorial, but a primary factor is cariogenic microorganisms such as Streptococcus mutans. Biosynthetic gene clusters (BGCs) encode small molecules with diverse biological activities that influence th...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034520914519
更新日期:2020-07-01 00:00:00
abstract::Adenosine has various biological effects on human gingival fibroblasts (HGF) and epithelial cells closely associated with inflammation, such as cytokine production and cell adhesion. However, the mechanism of adenosine formation in periodontal tissues is not yet defined. In this study, we examined the involvement of C...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910308201108
更新日期:2003-11-01 00:00:00
abstract::Despite the recognized link between aging and cancer, most preclinical studies in experimental tumor models are conducted with 6- to 8-wk-old rodents. The goal of the present study was to examine the impact of age on tumor incidence, growth, and microenvironmental characteristics in mouse models of head and neck squam...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034518775736
更新日期:2018-10-01 00:00:00
abstract::The tongue exerts crucial functions in our daily life. However, we know very little about the regulatory mechanisms of mammalian tongue development. In this review, we summarize recent findings of the molecular and cellular mechanisms that control tissue-tissue interactions during tongue morphogenesis. Specifically, c...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034511434055
更新日期:2012-06-01 00:00:00
abstract::Class II major histocompatilibity complex (MHC)-expressing cells are usually distributed in dental pulp, and it was postulated that the colony-stimulating factor (CSF) derived from dental pulp fibroblasts contributes to the migration of class II MHC-expressing cells into pulp tissue. This study aimed to investigate th...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910308200204
更新日期:2003-02-01 00:00:00
abstract::In 1992 and 1997, all US and Canadian dental schools were surveyed by mail regarding the preferred initial radiographic examination prescribed for non-emergency, comprehensive-care patients (dentulous adults, edentulous adults, and children). In both survey years, a minority of US and Canadian dental schools reported ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790071701
更新日期:2000-07-01 00:00:00
abstract::The accumulated posteruptive tooth age was calculated for 212 children with Down's syndrome and 124 of their unaffected sibs. Posteruptive tooth age was shown to vary widely with different morphological permanent tooth types at the same chronological age. Girls in both groups had greater accumulated posteruptive tooth...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345750540033001
更新日期:1975-05-01 00:00:00
abstract::The eventual outcome of dental caries is determined by the dynamic balance between pathological factors that lead to demineralization and protective factors that lead to remineralization. Pathological factors include acidogenic bacteria, inhibition of salivary function, and frequency of ingestion of fermentable carboh...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/154405910408301s08
更新日期:2004-01-01 00:00:00
abstract::Caries of the permanent first molars of 5-year-old children was found to be associated with caries of their diciduous teeth. The sample consisted of 220 children whose permanent first molars had erupted. They were selected out of 965 children who were a representative sample of children attending compulsory kindergart...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550062001
更新日期:1976-11-01 00:00:00
abstract::Histone deacetylases (HDACs) are important regulators of gene expression that are aberrantly regulated in several inflammatory and infectious diseases. HDAC inhibitors (HDACi) suppress inflammatory activation of various cell types through epigenetic and non-epigenetic mechanisms, and ameliorate pathology in a mouse mo...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034519885088
更新日期:2020-01-01 00:00:00