Abstract:
:A study was conducted to evaluate the effects of repeated hand instrumentation on the marginal portion of a cast gold crown. Seven extracted periodontally diseased premolars were used. The finishing line of the preparation was placed on the root surface and then the crown was cast and cemented in the usual manner. One proximal surface of each sample was divided into 2 areas: root planing (RP) area and RP plus polishing (RPP) area. The marginal portion of the crown was measured to give a baseline value using a surface roughness- and profile-analyzing system. Then, the marginal portion was painted with a waterproof pen. RP was performed to remove paint in the RP area with the curets. In the RPP area, RP followed by polishing was done by silicone polishing points and a rubber cup with polishing paste. The relevant procedures and measurements were repeated 3 times in each area. Changes in the sample roughness and profile were evaluated and compared between the 2 techniques. The results showed that repeated instrumentation altered the surface of the marginal portion of the cast gold crown, resulting in increased roughness in both areas (P < 0.01). However, the roughness of the RPP area was considerably restored to the baseline value by polishing after RP. Therefore, it is suggested that polishing after RP smoothes the marginal portion of the cast gold crowns and appears to be an efficient prophylactic system.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Yagi H,Ito K,Eda M,Murai Sdoi
10.1902/jop.1998.69.1.41subject
Has Abstractpub_date
1998-01-01 00:00:00pages
41-6issue
1eissn
0022-3492issn
1943-3670journal_volume
69pub_type
杂志文章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:BACKGROUND:There has been an explosion in research into possible associations between periodontitis and various systemic diseases and conditions. AIM:To review the evidence for associations between periodontitis and various systemic diseases and conditions, including chronic obstructive pulmonary disease (COPD), pneum...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.1340020
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:The pathobiology of systemic lupus erythematosus (SLE) is similar to that of periodontitis in that the immunoglobulin G Fc receptor (FcgammaR) and proinflammatory cytokines play an important role. Genetic variations of FcgammaR and interleukin (IL)-1 are associated with susceptibility to both diseases. There...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.060194
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Periodontitis is a polymicrobial, chronic inflammatory disease leading to loss of tooth-supporting structures. The bacteremia, endotoxemia, and systemic low-grade inflammation associate periodontitis with systemic illnesses such as diabetes mellitus and coronary artery disease. Periodontal pathogens have bee...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.18-0466
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Pentraxins are acute-phase proteins that belong to a family of evolutionarily conserved proteins, and they are considered markers of inflammation. Pentraxin-3 (PTX3) is a prototype of the long pentraxin group. It is suggested to play an important role in innate resistance against pathogens, regulation of inf...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.120718
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:A 22-year-old African American female was referred for augmentation of keratinized gingiva around implants at the right and left maxillary second premolar sites. Presurgical evaluation revealed generalized melanosis of the buccal gingiva and a lack of keratinized tissue around implants at sites #4 and #13. N...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090289
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Platelet-derived growth factor (PDGF-BB) has been shown to enhance periodontal regeneration. Principles of guided tissue regeneration dictate that one of the goals of therapy is to modulate the wound healing processes to favor repopulation of the wound with cells derived from the periodontal ligament rather ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2001.72.3.331
更新日期:2001-03-01 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::The case of a family, followed for 5 years and showing an exceptionally high prevalence of Generalized Juvenile Periodontitis (GJP), is presented. Two siblings were affected by a severe form of GJP meanwhile the dycorial twin of one was periodontally healthy. Both the affected siblings showed infection by Actinobacill...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1990.61.9.590
更新日期:1990-09-01 00:00:00
abstract:BACKGROUND:Green tea is a very popular beverage, and in vitro studies have shown that green tea polyphenols inhibit the growth and cellular adherence of periodontal pathogens and their production of virulence factors. We investigated the epidemiologic relationship between the intake of green tea and periodontal disease...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080510
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND:Previous studies have demonstrated that bone demineralization can improve consolidation in bone grafts. The biologic mechanisms underlying this phenomenon remain unclear. METHODS:Twelve adult male guinea pigs were used in this experiment. Forty-five bone samples removed from the calvaria of nine animals wer...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.130657
更新日期:2015-01-01 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:BACKGROUND:Hyperlipidemia is a known risk factor for cardiovascular diseases. A common biologic mechanism between systemic diseases, such as cardiovascular diseases, and periodontal diseases has been suggested. The aim of this study is to examine the association between blood lipid profile and periodontitis. METHODS:T...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.170111
更新日期:2018-01-01 00:00:00
abstract::This review examines specific aspects of orthodontic treatment and periodontal health, namely the effects of orthodontic banded attachments on periodontal disease and more specifically the microflora found around the gingival margins. This review highlights critical developments in orthodontic techniques and microbiol...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1996.67.2.78
更新日期:1996-02-01 00:00:00
abstract::Computer-based thermal imaging techniques were used to compare the rewarming rates of normal and inflamed human gingiva following cooling. A Modified Gingival Index (MGI) score, gingival crevicular fluid (GCF) measurement, and clinical photograph were obtained from a maxillary or mandibular anterior facial region in 2...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1989.60.11.628
更新日期:1989-11-01 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::In the first section of this two-part report human peripheral blood leukocytes were tested for reactivity to extracts of sclera. Absence of scleral antigenicity is suggested by the results which showed that the leukocytes reacted similarly in sclera stimulated cultures and in the controls. The second part of the repor...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1980.51.4.211
更新日期:1980-04-01 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:Leucine-rich alpha-2 glycoprotein (LRG) is a novel acute phase protein involved in inflammation-associated diseases and that considered to be induced by multiple proinflammatory cytokines. This study aimed to investigate gingival crevicular fluid (GCF) and serum levels of LRG, interleukin (IL)-6 and tumor ne...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.20-0358
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND:The main problem in the posterior instrumental treatment of periodontitis is the re-epithelization of the periodontal defects, leading to the formation of an unphysiological, long junctional epithelium inhibiting the regeneration of periodontal attachment. A precondition for the re-epithelization is the inte...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.4.388
更新日期:1999-04-01 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: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:Areca quid chewers have a higher prevalence of periodontal disease than non-chewers. Little is known about the influence of areca quid on the immune system. This study was to determine the possible effects of the areca nut on phagocytic activity of human neutrophils. METHODS:Aqueous extracts of ripe areca n...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.3.373
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND:Microarray analysis of local and peripheral cells in subjects with immune-inflammatory diseases may identify candidate genes associated with these diseases. The present study identified differentially expressed genes in peripheral blood mononuclear cells (PBMCs) from subjects with untreated localized aggress...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070309
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:The development of chronic periodontitis (CP) is a multifactorial process and variation in severity cannot be explained by just a few risk factors. The aims of this study were: 1) to explore the lifestyle and psychosocial factors of CP patients and 2) to estimate the proportion of total CP cases attributable...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.8.1169
更新日期:2003-08-01 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::A review of hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu Disease) is presented. Special emphasis is placed on the oral manifestations which include hemorrhagic vesicles, nodules, papules and ulcers that involve the gingiva and other areas of the mucosa. Two cases are included which were seen in a periodont...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1982.53.3.163
更新日期:1982-03-01 00:00:00
abstract:BACKGROUND:Dietary calcium has long been a candidate to modulate periodontal disease. Animal as well as human studies of calcium intake, bone mineral density, and tooth loss provide a rationale for hypothesizing that low dietary intake of calcium is a risk factor for periodontal disease. METHODS:We evaluated the role ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.7.1057
更新日期:2000-07-01 00:00:00
abstract::The plaque control record (O'Leary index) appears to be a commonly used oral hygiene index for assessing oral health skills. This index provides sufficient information for patient education; however, the time involved in data collection reduces its value. Most other indices limit the number of teeth and surfaces and f...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.10.1176
更新日期:1998-10-01 00:00:00
abstract:BACKGROUND:Susceptibility to periodontal infections may, in part, be genetically determined. Porphyromonas gingivalis is a major periodontopathogen, and the immune response to this organism requires T-cell help. The aim of the present study was to examine the specific T-cell cytokine responses to P. gingivalis outer me...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.6.591
更新日期:2002-06-01 00:00:00