Abstract:
:Basement membranes in human gingiva are found in dento-epithelial junction, epithelial-connective tissue junction and endothelium-connective-tissue junction where they have important attachment and filtering functions. The ability of plaque and gingiva-derived proteinases to degrade Type IV collagen, the major protein of basement membranes, was examined in vitro. The basement membrane collagen (Type IV) isolated from bovine lens capsules was incubated in the presence of enzyme samples. The degradation was assayed by the release of hydroxyproline from the insoluble substrate and by examining the peptide pattern of the residue by polyacrylamide gel electrophoresis. Salt extracts of inflamed gingival specimens degraded basement membrane collagen into soluble form and produced degradation products that were similar to those produced by human leukocyte extracts. Gingival crevicular fluid collected from patients with severe adult periodontitis also digested the substrate but the degradation pattern was different from the leukocyte and gingival extract samples. The pattern closely resembled the degradation produced by bacterial plaque extracts. A third type of cleavage was observed when collagenase from Clostridium histolyticum was incubated with basement membrane collagen. Crevicular fluid and the extracts from gingiva, leukocytes and plaque also contained gelatinase and elastase-like enzyme activities that have earlier been shown to be potent in degrading basement membrane. It was concluded that enzymes capable of degrading basement membrane collagen in gingivitis and periodontal disease may originate from both plaque bacteria and human leukocytes. It also appeared that the enzymes responsible are more likely to be gelatinase and elastase-like enzymes than specific collagenases.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Uitto VJdoi
10.1902/jop.1983.54.12.740subject
Has Abstractpub_date
1983-12-01 00:00:00pages
740-5issue
12eissn
0022-3492issn
1943-3670journal_volume
54pub_type
杂志文章abstract::Periodontal pockets of 11 subjects were irrigated once with either 1.64% SnF2 or saline applied by syringe. Changes on the total anaerobic colony forming units (CFU) and black pigmented bacteroides (BPBs) of the irrigated pockets were assessed for 31 days. The results showed little change of the CFUs by either single ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1985.56.6.330
更新日期:1985-06-01 00:00:00
abstract:BACKGROUND:β-glucuronidase (βG) is one of the enzymes involved in the destruction of non-collagenous components of the extracellular matrix. It is also considered an indicator or predictor of periodontal disease activity. The present study was conducted to determine the presence and the levels of βG activity in gingiva...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.4.618
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Prostaglandin E2 (PGE2) plays important roles in the pathogenesis of periodontal disease. Recent studies have revealed the existence of 2 isozymes of cyclooxygenase (COX), called COX-1 and COX-2. The purpose of the present study was to investigate the contribution of COX-1 and COX-2 to PGE2 production by hum...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.10.1575
更新日期:2000-10-01 00:00:00
abstract::A total of 305 dry human skull specimens were examined for the presence of furcation involvements. Of a total of 188 furcation involvements, 142 (75%) were related to the close proximity of the furcation to the cemento enamel junction of the tooth. ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.10.608
更新日期:1975-10-01 00:00:00
abstract:BACKGROUND:Bacterial constituents, such as Gram-negative derived lipopolysaccharide (LPS), can initiate inflammatory bone loss through induction of host-derived inflammatory cytokines. The aim of this study was to establish a model of aggressive inflammatory alveolar bone loss in rats using LPS derived from the periodo...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.060321
更新日期:2007-03-01 00:00:00
abstract::A bacterial concentration fluorescence immunoassay (BCFIA) was developed to rapidly detect periodontopathic bacteria in human plaque samples. The BCFIA utilized fluorescent-tagged monoclonal antibodies (MAbs) directed against the lipopolysaccharide of selected Gram-negative bacteria. Microorganisms identified in plaqu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1992.63.12s.1093
更新日期:1992-12-01 00:00:00
abstract:BACKGROUND:The rehabilitation of the oral cavity with dental implants has become a predictable treatment modality. However, there have been only a few direct comparisons evaluating the submerged and nonsubmerged placement techniques. The purpose of this study was to characterize radiographic peri-implant bone changes f...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.3.248
更新日期:1999-03-01 00:00:00
abstract:BACKGROUND:This study determines the effects of a routine assessment (Treatment as Usual, TAU) versus a risk communication intervention (Risk) versus a Goal-Setting, Planning and Self-Monitoring (GPS) intervention on periodontal disease patients' clinical and psychological outcomes. METHODS:In a three-arm randomized c...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1002/JPER.18-0385
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Control of contamination in the dental office has sometimes deterred practitioners from using ultrasonic scalers. Recent studies point to the aerosol and splatter produced during ultrasonic scaling as a vehicle for the possible transmission of bloodborne pathogens. A recently introduced ultrasonic insert tha...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.5.473
更新日期:1999-05-01 00:00:00
abstract::The distance from cemento-enamel junction to alveolar crest was studied in relation to periodontal treatment need, socioeconomic factors and dental health. The subjects (315) of the study were employees of a paper mill in Finland. Alveolar crest height was measured from orthopantomograms, periodontal treatment need wa...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1981.52.2.99
更新日期:1981-02-01 00:00:00
abstract::THE MORBIDITY and incidence of bacteremia in periodontal surgery with or without cephalexin prophylaxis were assessed in adults on the basis of clinical evaluations and blood cultures. Cephalexin reduced the incidence of polymicrobic bacteremias. There was no correlation between objective signs of tissue healing and a...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1982.53.5.319
更新日期:1982-05-01 00:00:00
abstract:BACKGROUND:Peri-implantitis treatments are mainly based on protocols for teeth but have not shown favorable outcomes for implants. The potential role of titanium dissolution products in peri-implantitis necessitate the consideration of material properties in devising treatment protocols. We assessed implant cleaning in...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.20-0186
更新日期:2020-08-26 00:00:00
abstract:BACKGROUND:Periodontitis is a chronic inflammatory condition that leads to the destruction of the tooth-supporting tissues. Its treatment includes the arrest of the inflammatory process and, in some circumstances, the restoration of the lost anatomy and function, including the formation of new cementum, periodontal lig...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.090678
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:This updated Cochrane systematic review (SR) evaluated the efficacy of different root coverage (RC) procedures in the treatment of single and multiple gingival recessions (GR). METHODS:We included randomized controlled trials (RCTs) only of at least 6 months' duration evaluating Miller's Class I or II GR (≥...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0079
更新日期:2019-12-01 00:00:00
abstract::At the present time, the diagnosis and classification of periodontal diseases are almost entirely based on traditional clinical assessments. Supplemental quantitative and qualitative assessments of the gingival crevicular fluid and subgingival microflora can potentially provide useful information about the patient's p...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2003.74.8.1237
更新日期:2003-08-01 00:00:00
abstract:BACKGROUND:Aggregatibacter actinomycetemcomitans (previously Actinobacillus actinomycetemcomitans), a capnophilic facultative anaerobe, is associated with localized aggressive periodontitis and endocarditis. When grown in broth, the cells begin to die rapidly after overnight growth. The cells also often lose viability ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100590
更新日期:2011-06-01 00:00:00
abstract::The present study demonstrated that hyperglycemic diabetic rats fed a low-protein (8%) diet maintained an alveolar bone height similar to controls; in contrast, those fed a standard protein diet (24%) had reduced alveolar bone height (P less than 0.05). Euglycemic diabetic and untreated control rats fed low-protein di...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1989.60.5.264
更新日期:1989-05-01 00:00:00
abstract::Defects in neutrophil or polymorphonuclear leukocyte (PMNL) chemotaxis have been observed in a number of clinical conditions, including Down's syndrome and insulin-dependent diabetes mellitus (IDDM), which tend to be associated with severe forms of periodontal disease. In addition, impaired PMNL chemotaxis is frequent...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1985.56.11s.56
更新日期:1985-11-01 00:00:00
abstract:BACKGROUND:Due to its concave morphology, a COL creates difficulties for proper oral hygiene. When this characteristic is accentuated by tooth position or caries and when restorations are necessary, they should be corrected by preprosthetic surgery. However, there are no data proving the efficacy of the procedures. The...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2001.72.12.1734
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:A wide selection of Interdental Oral Hygiene (IOH) aids is available to consumers. Recommendations for selection are, however, limited by the lack of direct comparisons in available studies. We aimed to assess the comparative efficacy of IOH aids using Bayesian Network Meta-Analysis (BNMA). METHODS:Two inde...
journal_title:Journal of periodontology
pub_type: 杂志文章,meta分析,评审
doi:10.1002/JPER.17-0368
更新日期:2018-05-01 00:00:00
abstract::Gingivitis and periodontitis are among the most common diseases known to man. Although bacterial plaque is generally accepted as the primary etiologic agent, little information is available concerning the influence that host genetic factors have on these diseases. The purpose of the present study was to examine the re...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1991.62.5.293
更新日期:1991-05-01 00:00:00
abstract::Paroxysmal nocturnal hemoglobinuria (PNH) is an uncommon blood stem cell disorder. The acquired defect is in the cell membrane of the precursor of the affected clone, which renders erythrocytes, platelets and granulocytes unusually sensitive to the hemolytic effects of complement. It is characterized by chronic hemoly...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1988.59.2.115
更新日期:1988-02-01 00:00:00
abstract::This study describes the histologic characteristics of root surfaces of primary teeth from children with prepubertal periodontitis (PP). Fifteen primary teeth from 4 children with PP, and 2 control primary teeth from 2 healthy children were examined. Light microscopy revealed normal root surfaces in the control teeth....
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.3.337
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Enhanced neutrophil responses play a critical role in the activation of the innate immune system and causation of aggressive periodontitis (AgP). The hypothesis that comprehensive periodontal treatment expedites resolution of amplified leukocyte activity and facilitates the reconstitution of periodontal heal...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.9.995
更新日期:2002-09-01 00:00:00
abstract::Three wall intrabony defects were produced in 11 dogs using a round bur followed by curettes and hoes. A copper band was fixed to the tooth with stainless steel ligature wire. Six weeks later, the copper band was removed and the defect was treated with an enriched collagen solution (ECS) prepared from acid-extracted d...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.11.623
更新日期:1984-11-01 00:00:00
abstract::Periodontal regeneration requires formation of periodontal tissues lost due to periodontal disease. To better understand the formation of new periodontal tissues during periodontal repair and regeneration, immunohistochemical expression of extracellular matrix components of normal as well as healing periodontal tissue...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1995.66.7.579
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Alanine aminopeptidase (ALAP) and dipeptidyl peptidase IV (DPPIV) are ectopeptidases that play a role in collagen degradation and are thought to be involved in the destruction of periodontal tissue. This study compared the activities of salivary ALAP and DPPIV in patients with periodontitis and periodontally...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090233
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:This study explored which factors affected patients' decisions to pursue either surgical or non-surgical periodontal treatment. METHODS:Data were collected from 74 patients at a regularly scheduled periodontal appointment, at which each patient was told that periodontal treatment was needed, and 2 weeks fol...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050206
更新日期:2006-04-01 00:00:00
abstract::Sjögren's syndrome is an autoimmune disease characterized by keratoconjunctivitis sicca and xerostomia. Rapid bacterial plaque accumulation occurs in Sjögren's syndrome patients due to decreases in salivary flow rate. The purpose of this study was to evaluate the periodontal status of patients with Sjögren's syndrome ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.5.571
更新日期:1998-05-01 00:00:00
abstract::This is a posthumous interview with Dr. Maynard K. Hine (MKH), the second editor of the Journal of Periodontology (from 1950 to 1970), as prepared by Dr. David C. Vandersall (DCV). Dr. Vandersall was a colleague of Dr. Hine while serving as associate clinical professor of periodontics at the Indiana University School ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.6.781
更新日期:2004-06-01 00:00:00