Abstract:
BACKGROUND:Recombinant human bone morphogenetic protein (rhBMP)-2 in a bioabsorbable collagen sponge (ACS) carrier supports significant bone formation. However, histomorphometric data on the augmentation of bone formation beyond the skeletal envelope are insufficient. Our objective was to evaluate the short-term effects of rhBMP-2 on bone augmentation beyond the skeletal envelope within a titanium cap in rabbit calvarium. METHODS:Eighteen adult male Japanese white rabbits were used. ACS soak-loaded with rhBMP-2 (100, 500, or 1,000 microg/ml) was placed at the calvarium; controls were packed with ACS alone. After 1 month, the animals were euthanized, and histologic sections were prepared. Newly generated tissue and mineralized bone areas were measured histomorphometrically and expressed as percentage ratios of the total submembranous space area. RESULTS:At all concentrations, a statistically significant difference in the relative height and amount of newly generated tissue was observed between the experimental and control sites. There was a statistically significant difference in the relative amount of mineralized bone between the experimental and control sites in the 1,000-microg/ml group, but no statistically significant differences were observed in the 100-microg/ml and 500-microg/ml groups. CONCLUSION:rhBMP-2/ACS has a short-term effect on bone augmentation beyond the skeletal envelope within a titanium cap in rabbit calvarium.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Hasegawa Y,Sato S,Takayama T,Murai M,Suzuki N,Ito Kdoi
10.1902/jop.2008.070305subject
Has Abstractpub_date
2008-02-01 00:00:00pages
348-54issue
2eissn
0022-3492issn
1943-3670journal_volume
79pub_type
杂志文章abstract:BACKGROUND:An immunohistochemical study was conducted to compare distributions of mast cell subpopulations in normal human gingiva and in gingival overgrowth induced by nifedipine and immunosuppressive medication. METHODS:Gingival samples were collected from 12 triple-medicated organ transplant recipients (immunosuppr...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.7.933
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND:Recombinant human bone morphogenetic protein-2 (rhBMP-2) has been found to promote the osteoblastic differentiation of human periodontal ligament cells. Its effect depends on the delivery system used. In this study we examined the effect of rhBMP-2 on the proliferation and osteoblastic differentiation of hum...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.7.982
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND:Several studies have indicated a relationship between rheumatoid arthritis and periodontal disease. The aim of this study was to investigate the association between the circulating proinflammatory mediators tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta, prostaglandin E(2), serotonin, rheumatoid ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070599
更新日期:2008-09-01 00:00:00
abstract::The American Academy of Periodontology has developed the following parameter on the treatment of chronic periodontitis with slight to moderate loss of periodontal supporting tissues. Patients should be informed of the disease process, therapeutic alternatives, potential complications, expected results, and their respo...
journal_title:Journal of periodontology
pub_type: 指南,杂志文章,实务指引
doi:10.1902/jop.2000.71.5-S.853
更新日期:2000-05-01 00:00:00
abstract::A study was undertaken to evaluate the antigenic potential of allogeneic freeze-dried skin (FDS) when used as a grafting material and to examine the clinical results when FDS is used for the correction of mucogingival problems in humans. FDS was obtained from an HLA-tissue-type donor according to Navy Tissue Bank prot...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1980.51.10.571
更新日期:1980-10-01 00:00:00
abstract::The clinical periodontal status of 44 insulin-dependent diabetic children and adolescents and 20 healthy control subjects was compared for a period of approximately 5 years. Fasting blood glucose, fructosamine, and glycosylated hemoglobin (HbA1) values were determined at baseline and 5 years later. The differences in ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1997.68.2.136
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND:The biologic safety profile of oral health care products is often assumed on the basis of simplistic test models such as monolayer cell culture systems. We developed and characterized a tissue-engineered human oral mucosal model, which was proven to represent a potentially more informative and more clinicall...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080610
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Metastasis of a malignant tumor to the oral cavity is rare, but it can be the first manifestation of a primary tumor. METHODS:The clinicopathologic features of a gingival metastasis originating from lung adenocarcinoma in a female patient are described. A 57-year-old woman showed a rapidly growing, painless...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070246
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Some reports suggest that the prevalence and severity of gingival overgrowth (GO) is lower in patients taking tacrolimus (Tcr) than in those taking cyclosporin A (CsA). The present study was conducted to determine the prevalence and severity of GO in a group of renal transplant recipients treated with Tcr in...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050327
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:The immediate loading treatment concept can be successfully used in implant dentistry. Bone cells migrate onto the implant surface and establish a stable anchorage on the titanium surface. When implants are loaded immediately after surgery, there is a high long-term success rate of the implant-supported reco...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.11.1823
更新日期:2005-11-01 00:00:00
abstract::The purpose of this study was to provide additional evidence that in the lesions of acute necrotizing ulcerative gingivitis (ANUG), spirochetes and other microorganisms are capable of invading the nonnecrotic lamina propria of affected gingivae. Biopsies from eight patients with pathognomonic signs of ANUG were obtain...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1983.54.11.671
更新日期:1983-11-01 00:00:00
abstract:BACKGROUND:Mechanical periodontal therapy consists of a non-surgical course, followed by surgical treatment to eliminate or reduce remaining pathological pockets. Only if diligent mechanical therapy fails are additional measures considered. It has been documented that smoking interferes with the host defense mechanisms...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.10.1166
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND:There are no specific bacterial profiles or diagnostic tests capable of identifying refractory periodontitis patients before a treatment regimen is initiated. Therefore, in this high-risk cohort of patients who do not respond appropriately, host factors that might be partly under genetic control may play a c...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050254
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:As patient demand increases for more natural restorations in the esthetic zone, clinicians must have the highest level of skill and knowledge to maintain or reform the interdental papilla between teeth, between implants and teeth, and between adjacent implants. To date, there are no reports that have measure...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.12.1785
更新日期:2003-12-01 00:00:00
abstract::This short report offers solutions for three common clinical problems. Based on their experience, the authors suggest using a "spoon" type partial denture for the temporary replacement of maxillary anterior teeth. The denture is unique in that it has no clasps and does not contact the marginal gingiva. Also, conventio...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.6.341
更新日期:1984-06-01 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::This longitudinal study of randomly selected Norwegian students and academicians has shown that 50% of the 17-year olds have lost no periodontal support, and the other 50% exhibited slight localized loss of attachment primarily on buccal surfaces of first molars and first bicuspids of both jaws. At 21 all students sho...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1978.49.12.607
更新日期:1978-12-01 00:00:00
abstract:BACKGROUND:To validate the concept of early implant placement for use in the esthetically sensitive anterior maxilla, clinical trials should ideally include objective esthetic criteria when assessing outcome parameters. METHODS:In this cross-sectional, retrospective 2- to 4-year study involving 45 patients treated wit...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080435
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Prevalence of peri-implantitis is directly proportional to the time of functional loading. The aim of this retrospective study was to assess the survival and success rates as well as the incidence of peri-implantitis among patients with a history of periodontitis and among implants with 1 to 10 years of func...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.18-0715
更新日期:2019-12-20 00:00:00
abstract:BACKGROUND:Purified recombinant human platelet-derived growth factor BB (rhPDGF-BB) is a potent wound healing growth factor and stimulator of the proliferation and recruitment of both periodontal ligament (PDL) and bone cells. The hypothesis tested in this study was that application of rhPDGF-BB incorporated in bone al...
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.2003.74.9.1282
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:Little is known regarding the interaction of dental implant surface nanotubes and oral soft and hard tissues. The purpose of this study was to evaluate both histologically and radiographically the qualitative and quantitative effects of dental implant surface nanotubes on hard and soft tissue in a canine mod...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.18-0205
更新日期:2020-04-01 00:00:00
abstract::1. The grafted material appears extremely compatible with the animals tested for the observed time periods. 2. The procedures used led to the obliteration of surgically created one-wall infrabony periodontal pockets with fibrous connective tissue and/or bone. 3. The ready access, ease of placement and flexibility of t...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.8.453
更新日期:1975-08-01 00:00:00
abstract:BACKGROUND:Regenerative periodontal treatment aims to restore the attachment of the periodontal ligament and gingival collagen fibers to both the cementum of the root surface and alveolar bone. Fibroblasts are the predominant cells of the periodontal ligament and gingiva and have important roles in the function and reg...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.4.458
更新日期:2003-04-01 00:00:00
abstract::Immunoglobulins in sera and in supernatant fluids of explant cultures of diseased gingival tissues from 20 rapidly progressive and 20 adult periodontitis sites were tested by an ELISA assay for reactivity with typed strains of Eubacterium alactolyticum, E. brachy, E. limosum and E. nodatum. Immunoglobulins present in ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1988.59.1.32
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Various forms of stress behavior were documented and in patients with periodontitis their relationship with periodontal disease was investigated. METHODS:Eighty-nine patients with different forms of chronic periodontitis were included in this retrospective case-control study. They were all undergoing period...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.11.1343
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND:A specific composite genotype of the polymorphic interleukin-1 (IL-1) gene cluster has recently been associated with severe periodontitis. One polymorphism of the composite periodontitis-associated genotype (PAG) has been functionally linked with expression of high levels of IL-1. The purpose of this study w...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.6.567
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND:The objectives of this study are to compare differences in histologic and clinical healing following tooth extraction and ridge preservation using two different xenograft treatment protocols. METHODS:Forty-four patients with a non-molar tooth that required extraction and planned implant placement were rando...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2012.120219
更新日期:2013-05-01 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:BACKGROUND:Smoking is a major risk factor for periodontal disease. Conventional oral epidemiology approaches have found strong, consistent associations between chronic smoking and periodontal attachment loss (AL) through ages 26, 32, and 38 years, but those statistical methods disregarded the data's hierarchical struct...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.130577
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Osteoblasts and periodontal ligament stem cells (PDLSCs) play an important role in maintaining physiologic function of periodontal tissues and participating in periodontal regeneration. Elucidation of interactions between osteoblasts and PDLSCs will aid understanding of periodontal regeneration mechanisms. T...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.170016
更新日期:2017-10-01 00:00:00