Abstract:
:Matrix metalloproteinases (MMP) are a family of proteolytic enzymes that mediate the degradation of extracellular matrix macromolecules, including interstitial and basement membrane collagens, fibronectin, laminin, and proteoglycan core protein. The enzymes are secreted or released in latent form and become activated in the pericellular environment by disruption of a Zn(++)-cysteine bond which blocks the reactivity of the active site. The major cell types in inflamed and healthy periodontal tissues (fibroblasts, keratinocytes, endothelial cells, and macrophages) are capable of responding to growth factors and cytokines, as well as to products released from the microbial flora by induction of transcription of 1 or more MMP genes. Cytokines that are likely to regulate expression of MMP genes in periodontal tissues include IL-1, TNF-alpha, and TGF-alpha. In addition, triggered PMN leukocytes which express only 2 MMP (PMN-CL and Mr 92K GL) release these enzymes from specific granule storage sites in response to a number of stimuli. The evidence that MMP are involved in tissue destruction in human periodontal diseases is still indirect and circumstantial. Cells isolated from normal and inflamed gingiva are capable of expressing a wide complement of MMP in culture and several MMP can be detected in cells of human gingiva in vivo. In addition, PMN-CL and Mr 92K GL are readily detected in gingival crevicular fluid from gingivitis and periodontitis patients. Osteoclastic bone resorption does not appear to directly involve MMP, but a body of evidence suggests that bone resorption is initiated by removal of the osteoid layer by osteoblasts by means of a collagenase-dependent process.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Birkedal-Hansen Hdoi
10.1902/jop.1993.64.5s.474subject
Has Abstractpub_date
1993-05-01 00:00:00pages
474-84issue
5 Suppleissn
0022-3492issn
1943-3670journal_volume
64pub_type
杂志文章,评审abstract:BACKGROUND:The long-term survival of dental implants depends, in part, on control of bacterial infection in the peri-implant region. Periodontal pathogens colonized implants symptomatic through infection, whereas the microbiota of successful implants was similar to that of periodontal health. This study examined the im...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.2.131
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:Metformin (MF), a second-generation biguanide, is a commonly used oral antidiabetic drug that has been shown recently to stimulate osteoblasts and reduce alveolar bone loss. The present study aims to explore the efficacy of 0.5%, 1%, and 1.5% MF gel as a local drug delivery system in adjunct to scaling and r...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2012.120025
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:This study aims to identify predictors of performed oral hygiene behaviors (OHBs) based on the Theory of Planned Behavior (TPB), oral health knowledge, and demographic factors. METHODS:Using a questionnaire, 381 participants in three general dental offices and one hospital dental department in York, Pennsyl...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2015.150239
更新日期:2016-03-01 00:00:00
abstract::Resected inflamed gingival tissue obtained from 16 periodontal patients and a pooled sample of noninflamed gingiva from five edentulous patients were assayed for immunoglobulins IgG, IgA, and IgM using low-level immunodiffusion plates. Findings based on the gingival assays include:(1) IgA and IgG are present in both i...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.7.387
更新日期:1975-07-01 00:00:00
abstract::A retrospective study was conducted of 620 patients in a periodontal practice over the years 1960 to 1982. Various periodontal therapies were assessed by using careful office protocols, meticulous record-keeping and well-defined outcome criteria. Four treatment outcome categories were used: two representing satisfacto...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1985.56.5.253
更新日期:1985-05-01 00:00:00
abstract::Multiple periodontal lesions were the presenting features leading to a diagnosis of multiple myeloma in a 38-year-old male. Ulceration and bleeding from a rapidly growing retromolar myelomatous mass, multiple foci of alveolar bone destruction and cortical expansion together with multifocal skeletal destruction were th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1990.61.2.132
更新日期:1990-02-01 00:00:00
abstract:BACKGROUND:The minimum inhibitory concentration (MIC) does not provide information on the efficacy of antimicrobial agents against infections involving biofilms, which are many times more resistant than planktonic forms of bacteria. This report is on the design and initial trial of a device for growing standard biofilm...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.9.1443
更新日期:2005-09-01 00:00:00
abstract::The present paper describes 36 consecutively treated non-human primates (Macaca mulatta) as part of a balanced block design study to examine osseointegration in root- and plate-form implants prepared by atraumatic preparation of bone. Clinical measurements around selected teeth and digital radiology were utilized to m...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.12.1322
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND:This cross-sectional study assesses cytokine levels in peri-implant crevicular fluid (PICF)/gingival crevicular fluid (GCF) and a selection of subgingival/submucosal plaque bacteria from clinically healthy or diseased sites in the same individuals. METHODS:Samples from 97 implants/teeth (58 implants [19 hea...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.160751
更新日期:2017-08-01 00:00:00
abstract::The purpose of the present study was to use a novel intracrevicular lavage technique to evaluate short-term effects of phase I therapy on crevicular cell populations. Nineteen patients with untreated advanced adult periodontitis were selected for phase I therapy. One side of the dentition was treated with ultrasonic c...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1995.66.3.235
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:The paradental cyst is an odontogenic lesion of inflammatory origin that has few clinical signs and symptoms apart from recurring acute episodes. A well-defined radiolucency associated with the roots or distal to the crown may be seen radiographically. The purpose of this article is to report on different as...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050380
更新日期:2006-09-01 00:00:00
abstract::Forty free gingival grafts were performed on 5 adult Rhesus monkeys as follows: 10 grafts were placed on recipient sites with periosteum; 10 grafts on periosteum and perforated cortical plate; 10 grafts on bared bone; and 10 grafts on perforated bared bone. All free autografts (7 X 5 X 1 mm) were taken from the palata...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1978.49.1.15
更新日期:1978-01-01 00:00:00
abstract:BACKGROUND:Treatment of periodontally diseased multi-rooted posterior teeth has conventionally consisted of scaling and root planing, apically positioned flaps, tunneling, root amputation, root resection, guided tissue regeneration, osseous grafting, and combination osseous graft and barrier membrane techniques. Succes...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.6.1043
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:The aim of this study is to make a longitudinal evaluation of the incidence and severity of gingival overgrowth (GO) induced by immunosuppressive agents, such as tacrolimus (Tcr) and cyclosporin A (CsA), in the absence of calcium channel blockers in patients undergoing renal transplantation (RT). METHODS:Th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100368
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVE:We used epidemiologic data of clinical periodontal status from two population-based samples in two countries, United States and Germany, to examine 1) the impact of age on the relative contribution of recession and pocketing on the distribution of clinical attachment loss, and 2) whether it is feasible to def...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.17-0670
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Periodontitis is associated with increased prevalence of cardiovascular morbidity and mortality; however, the nature of this association is unclear. There is a rationale that indicates that the presence of periodontal pockets which can harbor pathogenic microorganisms and evoke a host response could elicit a...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.5.494
更新日期:2002-05-01 00:00:00
abstract::Bacterial pneumonia is a prevalent and costly infection that is a significant cause of morbidity and mortality in patients of all ages. The continuing emergence of antibiotic-resistant bacteria (e.g., penicillin-resistant pneumococci) suggests that bacterial pneumonia will assume increasing importance in the coming ye...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1996.67.10s.1114
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:The clinical use of an enamel matrix derivative (EMD) has been shown to promote formation of new cementum, periodontal ligament (PDL), and bone and to significantly enhance the clinical outcomes after regenerative periodontal surgery. It is currently unknown to what extent the bleeding during periodontal sur...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2011.110404
更新日期:2012-07-01 00:00:00
abstract::It is generally recognized that bacteria in dental plaque at sites of periodontal diseases are not commonly found at sites of periodontal health. One hypothesis to explain the etiology of periodontitis is that pathogenic bacteria from diseased sites infect healthy sites. It has been suggested that gingival inflammatio...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.2.109
更新日期:1996-02-01 00:00:00
abstract:BACKGROUND:The pathogenesis of epithelial thickening in gingival overgrowth remains obscure. Apoptosis plays an important role in maintaining tissue hemostasis. The aim of the present study was to investigate apoptosis via immunohistochemical analyses in cyclosporin A-induced gingival overgrowth tissue samples to deter...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.070226
更新日期:2007-12-01 00:00:00
abstract::Ferritin and peroxidase-conjugated antibodies were used in an indirect antibody method to localize fibronectin in gingival connective tissues. Fibronectin was found in the basal lamina beneath the epithelium and endothelium. Collagen fibrils associated with the basement membranes were also heavily coated by fibronecti...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1986.57.7.413
更新日期:1986-07-01 00:00:00
abstract:BACKGROUND:Chronic periodontitis (CP) exhibits inflammation and alveolar bone loss, and severe forms of periodontitis are suggested to have a genetic basis. Vitamin D receptor (VDR) regulates bone metabolism and inflammation-related genes, and single nucleotide polymorphisms (SNPs) in the VDR gene may affect the functi...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080465
更新日期:2009-04-01 00:00:00
abstract::T-cell subsets extracted from chronically inflamed periodontal tissues were identified using monoclonal antibodies, and their functional activity was analysed using the autologous mixed lymphocyte reaction (AMLR). Tissue was obtained from a total of 33 adult periodontitis (AP) patients and 6 normal/marginal gingivitis...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1987.58.8.569
更新日期:1987-08-01 00:00:00
abstract::The feasibility of a new combined collagen gel-autolysed antigen-extracted allogeneic bone implant was tested. Its effect on gaining new attachment in surgically created defects in four dogs was evaluated over 24 weeks. As controls, sites receiving implants of the bone implant alone, nonimplanted and untreated defects...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1986.57.2.84
更新日期:1986-02-01 00:00:00
abstract:BACKGROUND:The objective of this study is to characterize the association between metabolic syndrome (MetS) and periodontitis in women, for which there is limited evidence. METHODS:Cross-sectional associations between MetS and periodontitis were examined in 657 postmenopausal women aged 50 to 79 years enrolled in a pe...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140185
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:It has been suggested that cyclosporine A (CsA) induces gingival enlargement by promoting an increase in the gingival extracellular matrix (ECM). Nonetheless, the variable occurrence of CsA-induced gingival enlargement in patients receiving this medication indicates a multifactorial pathogenesis. Clinical ob...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2012.120224
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND:Mounting evidence supports a connection between periodontal disease and coronary heart disease, ischemic stroke, and diabetes. This theoretically grounded study examines the knowledge, attitudes, and screening and referral behaviors of primary care nurse practitioners (NPs) in relation to the periodontal dis...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100259
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:The subgingival microbiota as well as determination of markers such as associated pathogens is still in the focus of dental research. The aim of this controlled clinical trial was to determine clinical applicability of a newly developed chairside bacterial test (CST) for the most relevant periodontal pathoge...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0180
更新日期:2020-03-01 00:00:00
abstract::In order to increase our understanding of the immunologic aspects of periodontal disease, three groups of extracted human teeth were evaluated for the presence of antibody on the cementum surface. Antibody was demonstrated by direct immunofluorescence using monospecific antibody with human alpha , gamma and upsilon ch...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1982.53.3.168
更新日期:1982-03-01 00:00:00
abstract:BACKGROUND:Sarcoidosis is an inflammatory granulomatous systemic disease that rarely affects the oral cavity. Gingival involvement has been reported in only a very limited number of cases, occasionally as the first manifestation of the disease. This article reports a case of sarcoidosis affecting the gingiva and alveol...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070139
更新日期:2008-03-01 00:00:00