Abstract:
BACKGROUND:Dendritic cells are characterized by shape, structure, and membrane molecule expression; they contact T lymphocytes to present antigens and stimulate plasma cell differentiation in vitro. Dendritic cells are known to be present in healthy human gingiva and to be altered in HIV-associated periodontitis. Here, we address the phenotype, location, and intercellular relationships of dendritic cells in chronic periodontitis. METHODS:Biopsies from patients with chronic periodontitis were analyzed by electron microscopy and indirect immunofluorescence for dendritic cells and lymphocyte markers. RESULTS:Langerhans' cells were spread in oral epithelium but restricted to the basal layer in pocket epithelium; they did not usually express major histocompatibility complex (MHC)-II antigens nor contact lymphocytes. Dendritic cells were abundant in the lamina propria of pocket epithelium; they were MHC-II positive, admixed with CD4-positive and CD8-positive T lymphocytes, and, they expressed CD54, CD80, and CD86. Dendritic cells often contacted lymphocytes and were also located within plasma cell aggregates. CONCLUSIONS:The data suggest that prerequisites for mounting a T cell-mediated immune response exist in chronic periodontitis, although this response is limited to the lamina propria. These results suggest that T-cell responses offer limited protection and can contribute to tissue damage during periodontal disease.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Cirrincione C,Pimpinelli N,Orlando L,Romagnoli Pdoi
10.1902/jop.2002.73.1.45subject
Has Abstractpub_date
2002-01-01 00:00:00pages
45-52issue
1eissn
0022-3492issn
1943-3670journal_volume
73pub_type
杂志文章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:The purpose of this clinical study was to evaluate the possible influence of testosterone hormone on common clinical measurements of periodontal disease in men with hypergonadotropic hypogonadism. METHODS:Twenty-four hypergonadotropic hypogonadal men (H) and 24 systemically healthy men (S) were divided into...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050286
更新日期:2006-07-01 00:00:00
abstract:BACKGROUND:Previous findings of an association between 25-hydroxyvitamin D [25(OH)D] concentrations and periodontal disease may be partially explained by the antimicrobial properties of vitamin D. To the best of the authors' knowledge, no study has investigated the association between 25(OH)D and pathogenic oral bacter...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130518
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Xenografts to augment the maxillary sinus have been used extensively. The aim of the present study was to evaluate, qualitatively and quantitatively, two different HA derivatives of natural and synthetic sources on newly formed bone in the augmented sinus. METHODS:A bilateral sinus augmentation procedure wi...
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.2001.72.7.911
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:The present study was designed to evaluate the effect, if any, of citric acid root demineralization in the outcome of subepithelial connective tissue grafts performed to cover localized gingival recessions. METHODS:Thirty-six patients participated, each providing one gingival recession; 19 received citric a...
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.2000.71.4.568
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Neutrophils (PMNs) are critical components of the innate immune system and help to maintain oral health in the face of a constant bacterial challenge. However, along with protecting the periodontium from microbial invasion, these cells release potent lysosomal enzymes and oxygen radicals that can be destruct...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.070107
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:The number of immunocompromised patients is increasing as a consequence of successful organ transplantation. Placing dental implants in these patients has been questioned because of their increased risk for infections. The 10-year follow-up data of a 71-year-old liver transplant recipient with long-term immu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.6.909
更新日期:2004-06-01 00:00:00
abstract::This study compared demineralized-unicortical-ilium-strips (DUIS) and an expanded polytetrafluoroethylene (ePTFE) physical barrier in combination with decalcified freeze-dried bone allograft (DFDBA) for treatment of Class II mandibular furcations. Twenty patients with adult periodontitis and at least 2 furcation invas...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.8.803
更新日期:1996-08-01 00:00:00
abstract:BACKGROUND:Several recent studies have indicated that total antioxidant capacity (TAOC) of plasma seems to be compromised in chronic periodontitis (ChP). The aim of this study is to investigate plasma TAOC in patients with ChP and to assess the effects of vitamin C as an adjunct to non-surgical periodontal treatment. ...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2010.100173
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Hyaluronic acid (HA) has shown anti-inflammatory effects in gingivitis therapy. The potential benefits of local subgingival application of HA adjunctive to scaling and root planing (SRP) were evaluated in this study. METHODS:Twenty patients with chronic periodontitis were included in this split-mouth study....
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2004.75.8.1114
更新日期:2004-08-01 00:00:00
abstract::This study investigated a possible association between bruxism and severity of periodontal disease. Subjects consisted of 51 patients (mean age 47.3 years) referred to the Department of Periodontology for treatment of moderate to severe periodontal disease (Perio-group) and 40 patients (mean age 48.9 years) referred t...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1987.58.3.173
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:Recombinant human bone morphogenetic protein-2 (rhBMP-2) in a proper carrier has been shown to induce clinically relevant bone formation for several oral/maxillofacial and periodontal indications and to stimulate regeneration of the periodontal attachment. The objective of this study is to evaluate regenerat...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.12.1494
更新日期:2002-12-01 00:00:00
abstract:BACKGROUND:Autologous bone grafts are usually well consolidated after 4 to 5 months but can be incompletely interlocked with the native bone. This study investigated the effect of acid demineralization of the graft-bed interface on graft consolidation. METHODS:Onlay bone grafts were performed on the calvaria of 36 gui...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130298
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Periodontal wound healing has been accelerated by different low-level laser therapy (LLLT) protocols. However, just a few studies have evaluated use of this therapy adjunctive to periodontal plastic surgery procedures. The present study shows 2-year results of a connective tissue graft (CTG) associated with ...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2016.160391
更新日期:2017-04-01 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:Previous studies have demonstrated that enamel matrix derivative (EMD) has the ability to improve clinical parameters when used to treat intraosseous defects. The purpose of the present study was to compare at 12 months postsurgery sites treated with open flap debridement (OFD) alone to those treated with OF...
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.2001.72.1.25
更新日期:2001-01-01 00:00:00
abstract::Dental implant placement associated with augmentation of the sinus floor in the severely atrophic maxilla can be performed in 1- or 2-surgical stages, depending on the height of the residual alveolar bone. A minimum of 4 to 5 mm of residual alveolar bone height is recommended for a 1-stage surgical procedure. The pres...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.12.1397
更新日期:1998-12-01 00:00:00
abstract::In an earlier report, we examined the relationship of patient-derived clinical and epidemiological variables to the risk for future clinical attachment loss (CAL) in chronic adult periodontitis. We determined that the extent of the patient's existing periodontal disease as measured by mean attachment loss (MAL) and th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1992.63.4.262
更新日期:1992-04-01 00:00:00
abstract:BACKGROUND:Matrix metalloproteinases (MMPs) are a family of host-derived proteinases reported to mediate multiple functions associated with periodontal destruction and inflammation. Most of the existing data have been gathered from adults with chronic periodontitis. The purpose of this study was to determine the MMP le...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070513
更新日期:2008-05-01 00:00:00
abstract::Standard wounds of simple incision and partial excision of the dentogingival junction were made in miniature swine. The healing from the 1st to the 14th day were described clinically and histologically, and the standardization of the wounds permitted quantitative and statistical analysis. In wounds that are closely ad...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1980.51.6.318
更新日期:1980-06-01 00:00:00
abstract::Explants of bovine gingival mucosa were cultured for four days on scaled and citric acid-conditioned root surfaces. Demineralization of the hard tissue with citric acid exposed the collagenous matrix of the root. Undemineralized islands were frequently seen among the collagen fibers of the treated roots. When cultured...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1988.59.2.95
更新日期:1988-02-01 00:00:00
abstract:BACKGROUND:Patients with juvenile idiopathic arthritis (JIA) have been shown to have incipient attachment loss (AL) more frequently than systemically healthy individuals. This study investigated neutrophil activity and proinflammatory cytokines in these patients and aged-matched controls. METHODS:Elastase activity, me...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.1.75
更新日期:2005-01-01 00:00:00
abstract::The authors review patient-reported outcome (PRO) metrics for dentistry, and in particular, periodontics. The PRO commentary for periodontics includes a review of split-mouth, randomized, controlled clinical trial results that specifically tracked pain at different sites over time after intervention and provided guide...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2014.130693
更新日期:2014-10-01 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:Periodontitis is an infection with an episodic pattern of tissue-support destruction. During the generation of a primary CD4(+) T helper 1 (Th1) response, interferon-gamma (IFN-gamma) acts as a positive regulator by selectively inducing Th1 differentiation through increased transcription of T-bet. The aims o...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080287
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:The analgesic and anti-inflammatory efficacy of tenoxicam and meloxicam were evaluated in this double-masked, randomized, prospective study by analyzing pain scores and the need for rescue-analgesic agents following dental implant surgery. METHODS:One hundred patients, in whom 241 dental implants were place...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2007.070192
更新日期:2007-12-01 00:00:00
abstract::The purpose of this investigation was to evaluate calcium hydroxide and potassium nitrate individually as densensitizing agents for hypersensitive root surfaces. The apparatus used in the experiment to measure hypersensitivity was (a) a thermo-electric stimulating device to measure hot and cold stimulation quantitativ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1977.48.10.667
更新日期:1977-10-01 00:00:00
abstract::The purpose of this study was to determine the clinical course of early onset periodontitis and to investigate factors which may influence its clinical course. For the past 15 years we have been conducting a study of families with early onset periodontitis, and have examined 142 localized juvenile periodontitis and 18...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1995.66.5.321
更新日期:1995-05-01 00:00:00
abstract::The prevalence of periodontitis was studied in a population of insulin-dependent diabetes mellitus (IDDM) patients, aged 10-18, with a variety of disease durations and levels of control. The sample included a number of patients with poorly controlled IDDM of long duration. None of the patients had radiographic signs o...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.7.402
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:In the attempt to limit the post-surgery increase in buccal gingival recession (bREC), effect of a connective tissue graft (CTG) when combined with a buccal single flap approach (SFA) in the regenerative treatment of intraosseous defects is evaluated. METHODS:Data related to 30 patients with an intraosseous...
journal_title:Journal of periodontology
pub_type: 杂志文章,多中心研究
doi:10.1902/jop.2016.160471
更新日期:2017-04-01 00:00:00