Abstract:
:The type of attachment that is used in oral rehabilitation by means of implant-retained mandibular overdentures may influence the retention and the stability of the denture. In this study, we examined the hypothesis that a better retention and stability of the denture improve the oral function. Eighteen edentulous subjects received 2 permucosal implants, a new denture, and, successively, 3 suprastructure modalities. Maximum bite force and electrical activity of the masseter and temporalis muscles were measured. The maximum bite force nearly doubled after treatment for each of the 3 attachments. However, the average bite force after treatment was still only two-thirds of the value obtained for dentate subjects. No large differences in maximum bite force and muscle activity were found among the 3 attachment types. Temporalis activity was significantly lower than masseter activity when subjects clenched without implant support. There was no difference in activity when subjects clenched with implant support.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
van Kampen FM,van der Bilt A,Cune MS,Bosman Fdoi
10.1177/154405910208100305keywords:
subject
Has Abstractpub_date
2002-03-01 00:00:00pages
170-3issue
3eissn
0022-0345issn
1544-0591journal_volume
81pub_type
临床试验,杂志文章,随机对照试验abstract::Interfacial bond strengths of light-activated composites were measured as a function of age using a transverse strength test. Bond strength between layers decreased with the age of the initial layer and reflected the setting curves of the composites. The highly-filled composites exhibited the greatest bond strengths. ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345840630101501
更新日期:1984-10-01 00:00:00
abstract::Current challenges in adhesive dentistry include over-hydrophilic bonding formulations, which facilitate water percolation through the hybrid layer and result in unreliable bonded interfaces. This study introduces nanogel-modified adhesives as a way to control the material's hydrophobic character without changing the ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034511426573
更新日期:2012-02-01 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::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::A simple in vitro method has been described for quantitatively measuring the rate at which isotopically labeled substances permeate through dentin in occlusal cavity preparations. The presence or absence of pulp tissue had only a minor effect on the kinetics of permeation. As the dentin was made thinner there was a re...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560011601
更新日期:1977-01-01 00:00:00
abstract::Evaluation of long-term mechanical behavior of new types of restorations in clinical trials is time-consuming. A partial alternative can be found in experimental fatigue-testing, which simulates accelerated mechanical deterioration. The aim of this study was to determine the feasibility of using fatigue-testing of a c...
journal_title:Journal of dental research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/00220345920710050301
更新日期:1992-05-01 00:00:00
abstract::Epithelial-mesenchymal interactions are required for tooth formation. Bone morphogenetic protein 4 (Bmp4) is a crucial signaling molecule during this process. For better understanding of the role of the Bmp4 gene during tooth development, we studied the mechanisms that control its temporal and spatial expression durin...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/002203450208100103
更新日期:2002-01-01 00:00:00
abstract::The relative contribution of the matrix of dentin to the physical properties of dentin is unknown but thought to be small. The objective of this study was to test the hypothesis that the demineralized matrix of dentin contributes little to the strength of dentin by measuring and comparing the ultimate tensile strength...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345940730061201
更新日期:1994-06-01 00:00:00
abstract::The Triggering Receptor Expressed on Myeloid cells 1 (TREM-1) is a cell-surface receptor of the immunoglobulin superfamily, involved in the propagation of the inflammatory response to bacterial challenge. Soluble (s)TREM-1 is released from the cell surface during the course of infection and is a useful inflammatory bi...
journal_title:Journal of dental research
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abstract::It has often been hypothesized that a large tongue leads to an enlargement of the mandible and therefore contributes to the development of mandibular prognathism. We examined (1) whether the tongue volume in human subjects with mandibular prognathism was larger than that in subjects with good occlusion and (2) whether...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345960750120701
更新日期:1996-12-01 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::The histopathologic status of gingival tissue was assessed according to the criteria of Page and Schroeder.(5) Rhodamine-labeled bacteria were used to assess the antigenic specificity of plasma cells in the tissue. Examination of tissue sections revealed that 31.6% of plasma cells in the advanced lesions bound the lab...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034580059S213
更新日期:1980-11-01 00:00:00
abstract::The accuracy for predicting mesiodistal widths of unerupted permanent canines and premolars from x-rays and their estimations based on the already erupted permanent teeth were tested in a group of Israeli children. The observed posteruptive widths related more closely to predicted values obtained from x-ray measuremen...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560081301
更新日期:1977-08-01 00:00:00
abstract::Masticatory muscle silent periods were compared in normal subjects and in patients with MPD syndrome before and after a variety of psychological, physiological, and pharmacological forms of therapy. All patients initially showed prolonged silent periods in one or more of the muscles. There was a direct relationship be...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345810600030501
更新日期:1981-03-01 00:00:00
abstract::Debonding rates of 164 resin-bonded prostheses (RBP) placed from 1974 to 1985 were examined at recall. The yearly debond rates were calculated, the cumulative probability of failure was determined for the debonded RBPs, and Weibull distribution parameters were determined. For perforated prostheses, there was a high in...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345930720081401
更新日期:1993-08-01 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::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 acute effects of smokeless tobacco (ST) on buccal mucosal transport and barrier function were studied by means of in vivo and in vitro techniques. In humans, in vivo exposure to 0.5 g ST transiently increased the transmural electrical potential difference (PD). However, despite continued exposure, PD returned to b...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345880670111101
更新日期:1988-11-01 00:00:00
abstract::The kinetics of subsurface demineralization of tooth sections has been studied in real-time by scanning microradiography (SMR). Demineralization was carried out: (1) with a large volume of solution buffered to pH = 4 to maintain a constant composition; and (2) in a small constant volume (approximately 3 mL), buffered ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345930720051401
更新日期:1993-05-01 00:00:00
abstract::Mechanical removal of oral biofilms is ubiquitously accepted as the best way to prevent caries and periodontal diseases. Removal effectiveness strongly depends on biofilm strength. To investigate the influence of hydrodynamics on oral biofilm strength, we grew single- and multi-species biofilms of Streptococcus oralis...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034509344569
更新日期:2009-10-01 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::The linear electrochemical polarization method was used to provide quantitative in vitro measurements of corrosion rates as a function of exposure time for Cu-Ni-Mn, Cu-Ni-Mn-Au, Cu-Ni-Mn-Ag, and Cu-Ni-Mn-Au-Ag alloys in artificial saliva. Both Au and Ag additives to dental-cast Cu-Ni-Mn alloys lowered the corrosion r...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345800590040701
更新日期:1980-04-01 00:00:00
abstract::Loss of hybrid layer integrity compromises resin-dentin bond stability. Matrix metalloproteinases (MMPs) may be partially responsible for hybrid layer degradation. Since chlorhexidine inhibits MMPs, we hypothesized that chlorhexidine would decelerate the loss of resin-dentin bonds. Class I preparations in extracted th...
journal_title:Journal of dental research
pub_type: 杂志文章,随机对照试验
doi:10.1177/154405910708600115
更新日期:2007-01-01 00:00:00
abstract::A study was made of the hydration of dental cements, water being classified as "non-evaporable" and "evaporable". The ratio of these two types of water was found to vary greatly among different cement types, being lesser in zinc oxide and ionic polymer cements and greater in ion-leachable glass and phosphoric acid cem...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345790580030701
更新日期:1979-03-01 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::The monomer triethyleneglycoldimethacrylate (TEGDMA) is used as a diluent in many resin-based dental materials. It was previously shown in vitro that TEGDMA was released into the adjacent biophase from such materials during the first days after placement. In this study, the uptake, distribution, and excretion of 14C-T...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345010800050501
更新日期:2001-05-01 00:00:00
abstract::Because bone reconstruction in irradiated sites is less than ideal, we applied a regenerative gene therapy method in which a cell-signaling virus was localized to biomaterial scaffolds to regenerate wounds compromised by radiation therapy. Critical-sized defects were created in rat calvariae previously treated with ra...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034509352151
更新日期:2010-01-01 00:00:00
abstract::In mineralizing hamster molars, the influence of several inhibitors on p-NPP-ase has been demonstrated, and compared with their effect on PPi-ase, known to belong to the same enzyme. Whereas the latter activity is much more physiological, p-NPP is a better substrate to distinguish between the effects of bivalent catio...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560102701
更新日期:1977-10-01 00:00:00
abstract::Dimensional alterations of the facial bone wall following tooth extractions in the esthetic zone have a profound effect on treatment outcomes. This prospective study in 39 patients is the first to investigate three-dimensional (3D) alterations of facial bone in the esthetic zone during the initial 8 wks following flap...
journal_title:Journal of dental research
pub_type: 临床试验,杂志文章
doi:10.1177/0022034513506713
更新日期:2013-12-01 00:00:00
abstract::Although dental amalgam is used frequently under artificial crowns for restoration of severely damaged teeth, there is little information available on the bond between luting cements and this alloy. This study was designed for determination of the strength of the bond between a dental amalgam alloy and three crown-lut...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345890680111501
更新日期:1989-11-01 00:00:00