Abstract:
BACKGROUND:The use of various combinations of enamel matrix derivative (EMD) and grafting materials has been shown to promote periodontal wound healing/regeneration. However, the downstream cellular behavior of periodontal ligament (PDL) cells and osteoblasts has not yet been studied. Furthermore, it is unknown to what extent the bleeding during regenerative surgery may influence the adsorption of exogenous proteins to the surface of bone grafting materials and the subsequent cellular behavior. In the present study, the aim is to test EMD adsorption to the surface of natural bone mineral (NBM) particles in the presence of blood and determine the effect of EMD coating to NBM particles on downstream cellular pathways, such as adhesion, proliferation, and differentiation of primary human osteoblasts and PDL cells. METHODS:NBM particles were precoated in various settings with EMD or human blood and analyzed for protein adsorption patterns via fluorescent imaging and high-resolution immunocytochemistry with an anti-EMD antibody. Cell attachment and cell proliferation were quantified using fluorescent double-stranded DNA-binding dye. Cell differentiation was analyzed using real-time polymerase chain reaction for genes encoding runt-related transcription factor 2, alkaline phosphatase (ALP), osteocalcin (OC), and collagen1α1 (COL1A1), and mineralization was assessed using red dye staining. RESULTS:Analysis of cell attachment and cell proliferation revealed significantly higher osteoblast and PDL cell attachment on EMD-coated surfaces when compared with control and blood-coated surfaces. EMD also stimulated release of growth factors and cytokines, including bone morphogenetic protein 2 and transforming growth factor β1. Moreover, there were significantly higher mRNA levels of osteoblast differentiation markers, including COL1A1, ALP, and OC, in osteoblasts and PDL cells cultured on EMD-coated NBM particles. CONCLUSION:The present results suggest that 1) EMD enhances osteoblast and PDL cell attachment, proliferation, and differentiation on NBM particles, and 2) blood contamination of the grafting material before mixing with EMD may inhibit EMD adsorption.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Miron RJ,Bosshardt DD,Hedbom E,Zhang Y,Haenni B,Buser D,Sculean Adoi
10.1902/jop.2011.110480subject
Has Abstractpub_date
2012-07-01 00:00:00pages
936-47issue
7eissn
0022-3492issn
1943-3670journal_volume
83pub_type
杂志文章abstract:BACKGROUND:Platelet-rich fibrin (PRF) has recently been applied in osseous regeneration. The aim of the present study is to explore the efficacy of PRF in treatment of intrabony defects (IBDs) in aggressive periodontitis. METHODS:Fifty-four IBDs in 17 patients were treated either with autologous PRF with open flap deb...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2017.120661
更新日期:2017-11-01 00:00:00
abstract::Two cases of hemophilia in severely mentally retarded patients with drug-induced gingival hyperplasia are presented. The method of management in each case is described. A conservative approach is recommended in which tissue removals and only selected extractions are performed. It is also suggested that the sequela of ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1978.49.1.44
更新日期:1978-01-01 00:00:00
abstract::Plaque-induced inflammation has been documented from various aspects, but is still not well understood. In an effort to clarify the physicochemical properties of dental plaque and to isolate the active factor which give rise to inflammation, we studied a factor in plaque which may be a direct and local cause of gingiv...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1980.51.7.400
更新日期:1980-07-01 00:00:00
abstract::Fourteen intrabony periodontal defects and six furcation defects (Class II) were treated by a flap procedure which included the use of a polytetrafluoroethylene membrane to allow guided tissue regeneration. After 4 to 6 weeks of healing, the membranes were retrieved and examined by scanning electron microscopy for the...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1990.61.8.515
更新日期:1990-08-01 00:00:00
abstract::Acro-osteolysis ( Hadju - Cheney ) Syndrome is a rare disorder of bone metabolism characterized by progressive destruction of the distal phalangeal bone, curvature of the spine, aplasia of the facial sinuses, and persistence of the cranial sutures. The purpose of this manuscript is to focus on the description of the o...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.4.224
更新日期:1984-04-01 00:00:00
abstract::1. The subjective separation of the normal and the diseased periodontium for splinting purposes is artificial. With the exception of cases of secondary trauma from occlusion, the diseased periodontium should be treated in the same manner as the normal periodontium with regards to splinting. 2. Retionales for stabiliza...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1976.47.7.405
更新日期:1976-07-01 00:00:00
abstract:BACKGROUND:The purpose of the present study was to assess the effects of adjunctive meloxicam on the matrix metalloproteinase-8 (MMP-8) levels of gingival crevicular fluid (GCF) in chronic periodontitis patients following the initial phase of periodontal therapy. METHODS:Twelve chronic periodontitis patients received ...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1902/jop.2002.73.1.103
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:The purpose of this study is to evaluate the safety, patient acceptance, and short-term microbiologic effect of a new air-polishing device in subjects in maintenance care with residual pockets > or =5 mm. METHODS:This was an examiner-masked, randomized, split-mouth clinical trial. A new disposable nozzle, a...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2009.090394
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Recent research suggests that osteopenia may be a predisposing factor for periodontal tissue destruction. If so, then a relationship should exist between measures of systemic bone mineral density and periodontal tissue destruction. The purpose of the present cross-sectional study was to evaluate the associat...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1902/jop.1999.70.9.982
更新日期:1999-09-01 00:00:00
abstract::This study was undertaken to determine the extent of in vitro penetration of E. coli endotoxin into the root cementum of periodontally healthy and diseased teeth. Freshly extracted teeth were washed in distilled water, scaled and divided into two groups of 16 teeth each. Nine diseased and five healthy teeth in the fir...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1982.53.6.368
更新日期:1982-06-01 00:00:00
abstract::Mycoplasma have been identified in one case of juvenile periodontitis by size, morphology, hemadsorption and cultural techniques. These microorganisms were found on the surface of the tooth, on the surface of pocket epithelium and invading the gingival epithelium and adjacent connective tissue. These observations sugg...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.10.574
更新日期:1984-10-01 00:00:00
abstract:BACKGROUND:Chronic kidney disease (CKD) is a worldwide health problem with increasing prevalence and poor outcomes, including severe cardiovascular disease and renal osteodystrophy. With advances in medical treatment, patients with CKD are living longer and require oral care. The aim of this study is to determine the e...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090379
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:The aim of this 9-month reentry study was to compare the regenerative healing using porous (P) and non-porous (NP) teflon barrier membranes plus demineralized freeze dried bone allografts (DFDBA) in Class II buccal/lingual furcation defects. METHODS:Twenty-four patients, 13 males and 11 females, ages 38 to ...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1902/jop.2001.72.11.1580
更新日期:2001-11-01 00:00:00
abstract::The responses of four tooth/site groupings to periodontal therapy were evaluated. Eighty-two patients with periodontitis were treated in a split mouth design with coronal scaling, root planing, modified Widman surgery, and flap with osseous resectional surgery. Patients were evaluated prior to therapy, 4 weeks post-Ph...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1990.61.3.173
更新日期:1990-03-01 00:00:00
abstract:BACKGROUND:Patients with chronic kidney disease (CKD) have inability to maintain the normal levels of protein metabolism products, blood pressure and hematocrit. Periodontal disease involves an inflammatory destructive process. Identification of opportunistic viruses is extremely important as they are associated with c...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0583
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:Aspartate aminotransferase (AST) is an enzyme normally confined to the cytoplasm of cells, but released to the exracellular environment upon cell death. Its levels are associated with the severity of experimental gingivitis and the loss of periodontal attachement. The aim of the present study was to investig...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.7.1151
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:The aim of this study was to compare the clinical outcome of intrabony periodontal defects following treatment with a novel nanocrystalline hydroxyapatite (NHA) paste to open flap debridement. METHODS:Twenty-eight subjects, each displaying one intrabony defect with probing depth (PD) > or =6 mm and radiogra...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2008.070378
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:The aim of this clinical trial was to compare the outcome of non-surgical treatment of interproximal and non-interproximal Class II furcation involvements. METHODS:Thirty-eight patients presenting at least one Class II furcation involvement that bled on probing with a probing depth (PD) > or = 5 mm were rec...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2007.060312
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Sex hormones are linked to inflammation and bone turnover. The goal of this study is to explore the association between sex hormone levels and periodontitis in men using data from the third National Health and Nutrition Examination Survey (NHANES III). METHODS:Data from 755 men (aged ≥ 30 years), including ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2015.140530
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Procedures to improve peri-implant soft-tissue outcomes of single, immediately placed implants are a topic of interest. This systematic review investigates the effect of various surgical and restorative interventions on implant mid-buccal mucosal level. METHODS:An electronic search of five databases (Januar...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2013.130064
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:T and B lymphocytes play important roles in periodontitis. Smoking is considered a risk factor for periodontitis and may exert its negative effects through leukocytes. Taking smoking into consideration, the aim of this study was to analyze numbers of circulating T (CD3+) cells and their CD4+ and CD8+ subpopu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.4.557
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:The aim of the present review is to systematically evaluate the effects of autogenous platelet concentrates on clinical outcomes of the surgical treatment of periodontal diseases. METHODS:MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were searched using a combination of specific se...
journal_title:Journal of periodontology
pub_type: 杂志文章,meta分析,评审
doi:10.1902/jop.2010.100605
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:Implants replacing missing teeth provide advantages over clinical orthodontic treatment as compensation for reaction forces is no longer necessary and the lack of teeth is immediately resolved. METHODS:A total of 38 two-stage implants were inserted (16 in maxilla, 22 in mandible) in 10 partially edentulous ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.1.176
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:It has been proposed that the presence of a zone of keratinized mucosa (KM) around implants is associated with less discomfort during brushing and improved esthetic outcomes. Therefore, mucogingival procedures have been recommended for patients with discomfort during brushing, and to enhance esthetic results...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.18-0031
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Alveolar bone regeneration is frequently necessary prior to placement of implants. Efforts to improve wound healing have focused on factors that may enhance bone formation following guided bone regeneration (GBR) techniques alone or in combination with bone replacement graft materials. Recent reports suggest...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.10.1654
更新日期:2000-10-01 00:00:00
abstract::Strict control of dental plaque accumulation remains the cornerstone of successful maintenance of the treated patient. However, some recurrences of periodontitis appear to take place despite good oral hygiene habits. A proportion of these are likely due to qualitative features of the periodontal microbiota rather than...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1988.59.7.439
更新日期:1988-07-01 00:00:00
abstract::Experimentation in animal models has created a basis for highly improved therapeutic procedures in reconstructive periodontal surgery. This symposium has discussed several animal models currently used; additional models have been described in recent literature. The presentations by Drs. Caton, Wikesjö, and Lynch illus...
journal_title:Journal of periodontology
pub_type: 评论,杂志文章
doi:10.1902/jop.1994.65.12.1169
更新日期:1994-12-01 00:00:00
abstract:BACKGROUND:Collagen membranes cross-linked by glycation (GLYM) for guided bone regeneration (GBR) and guided tissue regeneration (GTR) are used extensively with proven safety and efficacy. Complete GLYM ossification, when placed in contact with bone, was described in a canine jaw model, suggesting that GLYM may serve a...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070421
更新日期:2008-06-01 00:00:00
abstract::The purpose of this study was to examine the effect of inflammatory cytokines on IFN-γ-induced HLA-DR expression on cultured human gingival fibroblasts by flow cytometry. Natural human IFN-γ, recombinant human interleukin-1β (rhIL-1β), and rh tumor necrosis factor-α (rhTNF-α) were used. IFN-γ-induced upregulation of H...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1994.65.4.336
更新日期:1994-04-01 00:00:00
abstract:BACKGROUND:Cicatricial pemphigoid (benign mucous membrane pemphigoid) is an autoimmune vesiculobullous disease that affects mucosal tissues of adults and rarely presents in children. Only 9 cases in the English literature have reported cicatricial pemphigoid in children, primarily as oral mucosal lesions. This paper pr...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2002.73.6.657
更新日期:2002-06-01 00:00:00