Abstract：
:Bone resorption beneath a maxillary complete denture was simulated by the finite element method, assuming that a threshold of compressive strain exists in the alveolar bone above which the resorption occurred. The pattern of predicted resorption was observed when 100 N of force was applied to three positions occlusally, and 20 N was applied facially. Moreover, we observed the effect of rebasing the denture after initial resorption. The results indicate that resorption was initiated on the facial and occlusal surfaces of the alveolar ridge and proceeded palatally. The resorption was greater as the occlusal load point moved facially and when the force was applied in the facial direction. When the load point was toward the facial, rebasing the denture accentuated the resorption, but when the load point was toward the palatal, the resorption was almost the same regardless of rebase. The pattern of simulated bone resorption was similar to that reported from clinical observations, which suggests that the resorption may be associated with compressive strains developed in the alveolar bone. The results argue for the importance of occlusal adjustment of dentures to move the occlusal load point palatally and produce balanced occlusion in protrusion and lateral excursions, especially after a rebase procedure.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Maeda Y,Wood WWdoi
10.1177/00220345890680091601subject
Has Abstractpub_date
1989-09-01 00:00:00pages
1370-3issue
9eissn
0022-0345issn
1544-0591journal_volume
68pub_type
杂志文章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：:Cell kinetics of rat molar periodontal ligament (PDL) during orthodontically-induced osteogenesis revealed: 1) primary growth fraction of 59%, 2) proliferating cells from throughout the PDL migrate toward the bone surface, 3) preosteoblasts, capable of forming osteoblasts without synthesizing DNA, are present in the P...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345810600021501
更新日期：1981-02-01 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：:This study was undertaken in order to correlate the immune status of persons with various types of immune dysfunctions with the incidence of dental caries. Preliminary data on caries experience and the microbial composition of plaque in these individuals are presented. The findings suggest that persons with immunoglob...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345770560030201
更新日期：1977-03-01 00:00:00
abstract：:A detailed understanding of the complexity of root canal systems is imperative to ensure successful root canal preparation. The aim of this study was to evaluate the potential and accuracy of a three-dimensional, non-destructive technique for detailing root canal geometry by means of high-resolution tomography. The an...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790060901
更新日期：2000-06-01 00:00:00
abstract：:Multiple interactions occur among major determinants of dental caries. We have studied the bacterial flora and pH-lowering capacity of the same dental plaques in relation to caries. The findings on the plaque flora are reported here. The buccal surfaces of upper teeth in each subject were selected for study. A low-car...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790021201
更新日期：2000-02-01 00:00:00
abstract：:As the use of adhesive restorative materials has increased during the last several years, interest in adhesive materials that release fluoride has also grown. The purpose of this study was to measure fluoride release from several adhesive restorative materials and to evaluate its effect on dentin resistance to deminer...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345990780101001
更新日期：1999-10-01 00:00:00
abstract：:The incisor dentin of hypophosphatemic (Hyp) mice was examined histopathologically to determine whether the multiple occurrences of interglobular dentin would be influenced by the serum phosphate level. Both normal and Hyp mice (12 weeks of age) were divided into two groups. The mice in one group were given a control ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345920710031101
更新日期：1992-03-01 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：: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：:It has not been established whether transmission of mutans streptococci occurs between unrelated children older than 4 years of age. The aim of the study was to investigate the possible transmission of mutans streptococci genotypes from child to child in kindergarten. We studied 96 children (ages 5-6 yrs) in three San...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034509353400
更新日期：2010-01-01 00:00:00
abstract：:Periodontitis is a chronic inflammatory disease affecting oral tissues. The continuous, high production of cytokines by host cells triggered by periodontopathogens is thought to be responsible for the destruction of tooth-supporting tissues. Macrophages play a critical role in this host inflammatory response to period...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910608500306
更新日期：2006-03-01 00:00:00
abstract：:Recent advances in molecular biology have facilitated analyses of the oral microbiome ("Who are they?"); however, its functions (e.g., metabolic activities) are poorly understood ("What are they doing?"). This review aims to summarize our current understanding of the metabolism of the oral microbiome. Saccharolytic ba...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034515606045
更新日期：2015-12-01 00:00:00
abstract：:Growing evidence suggests that individual genetic susceptibility may influence the host's response to infections. The aim of this project was to study whether gene polymorphisms of inflammatory markers are associated with the presence of viable periodontopathogenic bacteria. We extracted genomic DNA from 45 young adul...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910708600505
更新日期：2007-05-01 00:00:00
abstract：:A search was made for expression of genes for proline-rich proteins (PRPs) and other salivary-type proteins, including statherin and histatins, in taste-bud tissues of mice and primates because of previous genetic findings in mice (Azen et al., 1986) that Prp and taste genes for certain bitter substances are either th...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345900690110401
更新日期：1990-11-01 00:00:00
abstract：:Various etching methods are examined with respect to their ability to induce the surface nucleation and growth of fluorapatite from solutions of low, sustained supersaturation with respect to hydroxyapatite and fluorapatite. The constant composition kinetics method enables the rates of remineralization to be precisely...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345820610091301
更新日期：1982-09-01 00:00:00
abstract：:The aim of this study was to test the hypothesis that the chewing of xylitol- or xylitol/sorbitol-containing chewing gum reduces plaque formation and the acidogenic potential of dental plaque. Thirty healthy volunteers aged from 19 to 28 yrs were randomly allocated to one of three test groups, chewing either xylitol-,...
journal_title：Journal of dental research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1177/00220345980770071001
更新日期：1998-07-01 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
abstract：:A number of studies have been made investigating the properties of dental prosthodontic soft polymer materials. In such materials, which are used as short-term denture soft liners, the polymer component is complexed with one or more plasticizers. This lowers the glass transition temperature, Tg, of the polymer by allo...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345910700050201
更新日期：1991-05-01 00:00:00
abstract：:A numerical model of the mandible, its articulating surfaces, and the forces exerted by the primary masticatory muscles has been developed for the purpose of investigating loading of the temporomandibular joint. Evidence is presented which shows that the temporomandibular joint. Evidence is presented which shows that ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345860650080201
更新日期：1986-08-01 00:00:00
abstract：:Previous studies have shown that therapeutic pulsed ultrasound (pulsed) has superior stimulatory effect on bone fracture healing compared with continuous ultrasound (continuous). Our predictive hypothesis was that pulsed ultrasound can produce better bone formation during mandibular osteodistraction than continuous ul...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910808701018
更新日期：2008-10-01 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：: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：:Resin luting of all-ceramic restorations results in increased performance; however, the strengthening mechanism and the role of the mechanical properties of the resin are not fully understood. The hypothesis tested is that ceramic strength enhancement is dependent on the elastic modulus of the resin. Three-point flexu...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910708600606
更新日期：2007-06-01 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：:The biogenetic formation of mineral crystals, one aspect of biomineralization, is a multistep process of apatite formation throughout the growth of dentin tissue. An important step is the transformation of the non-mineralized predentin matrix to mineralizing dentin matrix and its biological control. In this study, the...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345980770081401
更新日期：1998-08-01 00:00:00
abstract：:The complexity of human oral functional movements has not been studied in detail quantitatively, and only recently have studies begun to evaluate whether such movements contain sex-specific characteristics. Therefore, the purposes of this study were: (1) to quantify in detail the jaw movements and associated masticato...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345970760031301
更新日期：1997-03-01 00:00:00
abstract：:Hereditary diseases affecting the skeleton are heterogeneous in etiology and severity. Though many of these conditions are individually rare, the total number of people affected is great. These disorders often include dental-oral-craniofacial (DOC) manifestations, but the combination of the rarity and lack of in-depth...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034514529150
更新日期：2014-07-01 00:00:00
abstract：:Significant inhibition of PMN metabolic activity by F- occurred at 0.1, 0.5 and 0.0 mM F- for O2- generation, 1-C14 CO2 release labeled glucose and NBT-reduction respectively. This inhibition resulted primarily from F- suppression of nonoxidative glucose metabolism. As the concentration of F- in the O2- generating sys...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345790580092101
更新日期：1979-09-01 00:00:00
abstract：:The aim of this study was to examine the association between the bone mass (bone mineral content [BMC]) and hypomineralized second primary molars (HSPMs)/molar incisor hypomineralization (MIH) in 6-y-old children. This cross-sectional study was embedded in the Generation R Study, a population-based prospective cohort ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034515625470
更新日期：2016-04-01 00:00:00
