Abstract：
:In 1984, a four-year mixed-longitudinal study of oral health was begun in Morogoro Town and Morogoro District, Tanzania. Its main goal was to detect a possible upward trend in prevalence of caries in child cohorts in this developing country. The sample consisted of 722 seven- to nine-year-olds in 1984, 833 seven- to 11-year-olds in 1986, and 989 seven- to 13-year-olds in 1988. Mixed-longitudinal studies provide the opportunity for application of the Age-Period-Cohort analysis. On the basis of external information, either age and/or cohort and/or period effects can thus be isolated. Apart from significant age and period effects, a cohort effect was found, indicating that the prevalence of caries has decreased in these child populations between 1984 and 1988.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Frencken JE,Van 't Hof MA,Truin GJ,Lembariti BS,König KGdoi
10.1177/00220345890680121101subject
Has Abstractpub_date
1989-12-01 00:00:00pages
1777-80issue
12eissn
0022-0345issn
1544-0591journal_volume
68pub_type
杂志文章abstract：:Phosphatases are involved in bone and tooth mineralization, but their mechanisms of action are not completely understood. Tissue-nonspecific alkaline phosphatase (TNAP, ALPL) regulates inhibitory extracellular pyrophosphate through its pyrophosphatase activity to control mineral propagation in the matrix; mice without...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034513490958
更新日期：2013-08-01 00:00:00
abstract：:Joining a brittle veneer to a strong ceramic core with an adhesive offers potential benefits over current fabrication methods for all-ceramic crowns. We tested the hypothesis that such joining can withstand subsurface radial cracking in the veneer, from enhanced flexure in occlusal loading, as well as in the core. Cri...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910808700408
更新日期：2008-04-01 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：:The dimensional accuracy of porcelain fused to metal crown and bridge castings was determined on truncated cone-shaped steel dies. Ni-Cr castings produced in manufacturers' laboratories were consistently undersize, while precious metal castings were consistently oversize. Ni-Cr castings, produced in NBS laboratories u...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345790580120501
更新日期：1979-12-01 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：:The pellicle serves as a multifunctional protective layer, providing, e.g., lubrication and remineralization and also acting as a diffusion barrier. In addition, since the formation of the pellicle precedes the adhesion of micro-organisms, it is also important as a conditioning film. We present a novel approach to stu...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034512456704
更新日期：2012-10-01 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：: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 ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345810600090601
更新日期：1981-09-01 00:00:00
abstract：:A plaque growth chamber was developed for long-term growth of five separate plaques from the same plaque or saliva sample under identical conditions of temperature and gas phase. Reagent addition and growth conditions for each plaque could be independently controlled, and each was accessible for sequential sampling an...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345910700110301
更新日期：1991-11-01 00:00:00
abstract：:The purpose of the study was to determine the exposure times needed to harden a light-activated composite cement through various thicknesses of porcelain. A negative exponential model was developed with which the relative hardness of a composite could be predicted from the product of the exposure time and the square r...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345890680030801
更新日期：1989-03-01 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：UNLABELLED:We have previously shown that the resin monomer 2-hydroxyethylmethacrylate (HEMA) affects mouse B-lymphocyte activity, leading to increased IgG1 antibody production in vivo. In the present study, we tested, in vitro, the hypothesis that HEMA also affects human B-lymphocyte activity. The in vitro production o...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034510378522
更新日期：2010-12-01 00:00:00
abstract：:The dental phenolic medicaments, eugenol and guaiacol, are partly similar in chemical structure to capsaicin, the pungent constituent of chili peppers, which selectively activates sensory neurons via a specific receptor. We have previously demonstrated that these phenolic compounds show capsaicin-like action. In the p...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345970760040501
更新日期：1997-04-01 00:00:00
abstract：:We investigated whether oral health, represented by missing teeth, was associated with an increased risk of cardiovascular disease, including myocardial infarction (MI), heart failure (HF), stroke, and all-cause mortality. Subjects who underwent routine dental examinations and health checkups provided by the Korean Na...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034518814829
更新日期：2019-02-01 00:00:00
abstract：:Gingival epithelium is a site of active trafficking of Langerhans cells (LCs), while the lamina propria in chronic periodontitis (CP) contains CD83+ mature dendritic cells (mDCs) and CD4+ T-cells. The immune cells that contribute to the mDCs, and whether mDCs engage with T-cells in situ, are unclear. Using several imm...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910308200915
更新日期：2003-09-01 00:00:00
abstract：:A model system consisting of vacuum-deposited aluminum on glass was developed to demonstrate the effectiveness of cavitational activity (occurring within the cooling water supply of a dental ultrasonic scaler) in the removal of particulate material from solid surfaces. The amount of solid material removed from the mod...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345840630091401
更新日期：1984-09-01 00:00:00
abstract：:A silver-plating technique was developed in an effort to produce good mechanical bonding characteristics between stainless steel pins and amalgam. Metallographic microscope and scanning electron microscope (SEM) studies were made to assess the presence, or otherwise, of such a bond between (a) the silver layer plating...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345800590020301
更新日期：1980-02-01 00:00:00
abstract：:Teeth to be extracted for orthodontic reasons were filled in vivo with regular and fine-cut silver amalgams containing 1% and 5% SnF2. The teeth were extracted after 15 or 30 d, and the in vivo fluoride release and uptake by the dental tissues were studied using an electron microprobe analysis technique. The obtained ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345810600020101
更新日期：1981-02-01 00:00:00
abstract：:Remineralization of demineralized dentin lesions adjacent to glass-ionomer cements (GICs) has been reported in the literature. This study tested the hypothesis that a strontium-based GIC can remineralize completely demineralized dentin by nucleation of new apatite crystallites within an apatite-free dentin matrix. Hum...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034509357172
更新日期：2010-03-01 00:00:00
abstract：:Physico-chemical investigations of enamel from deciduous teeth of a small number of children with and without pre-natal fluoride supplementation (PNF) exhibited the following differences between the PNF and non-PNF enamel, with the former showing: (a) more homogeneous and less extensive patterns of acid-etching; (b) d...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345850640031601
更新日期：1985-03-01 00:00:00
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：:A water-soluble lipopolysaccharide from Salmonella enteritidis and a phenol-soluble lipopolysaccharide from Leptotrichia buccalis were applied topically to the healthy marginal gingivae of beagle dogs. Saline was applied to contralateral areas as an internal control. Increases in vascular permeability were monitored b...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345860650020301
更新日期：1986-02-01 00:00:00
abstract：:The aim of this study was to determine whether the parotid gland, like other salivary glands, produces blood group antigens. A post-embedding immunogold staining (IGS) method for ABH antigens was applied to osmicated and nonosmicated, routinely prepared specimens of normal human parotid glands. A and B antigens were n...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345940730021101
更新日期：1994-02-01 00:00:00
abstract：:Previously, in vitro differentiation of odontoblasts was shown for dental pulp stem cells (DPSCs) transfected with bone morphogenetic protein-2 (Bmp2). For this study, we hypothesized that such cells also show potential for mineralized tissue formation in vivo. DPSCs were transfected with Bmp2 and seeded onto a cerami...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034509346258
更新日期：2009-11-01 00:00:00
abstract：:Continuous etching of aggressive all-in-one adhesives occurs in wet dentin tubules after polymerization of the adhesives. This study challenged the hypothesis that unpolymerized acidic monomers from an aggressive all-in-one self-etching adhesive continue to etch beyond dentin hybrid layers. Dentin surfaces bonded with...
journal_title：Journal of dental research
pub_type： 杂志文章,随机对照试验
doi：10.1177/0022034510363665
更新日期：2010-05-01 00:00:00
abstract：:In the absence of active pulmonary disease, mycobacterial infection frequently causes arthritis and can be considered to initiate autoimmune diseases such as rheumatoid arthritis. Temporomandibular disorder (TMD) is a disease in which pain and impaired mandibular movement appear to arise directly from degenerative or ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790100401
更新日期：2000-10-01 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 aim of this meta-analysis, based on individual participant data from several studies, was to investigate the influence of patient-, materials-, and tooth-related variables on the survival of posterior resin composite restorations. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA...
journal_title：Journal of dental research
pub_type： 杂志文章,meta分析,评审
doi：10.1177/0022034514544217
更新日期：2014-10-01 00:00:00
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：:Periodontal diseases are initiated by bacteria that accumulate in a biofilm on the tooth surface and affect the adjacent periodontal tissue. Systemic diseases such as diabetes, rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE) increase susceptibility to destructive periodontal diseases. In human studie...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034518805739
更新日期：2019-02-01 00:00:00
