Abstract:
:Gingival incisions were performed distal to each of the two lower incisors on 25 adult male guinea pigs. For every animal, electrosection with an electrosurgical scalpel was used on one side, and a conventional scalpel was used on the other. The surgical instruments in all cases were brought into direct contact with periosteum. Five animals were sacrificed at each postoperative period (12, 24, 48, 72, and 96 hours), and sections of the areas of surgery were prepared by standard laboratory procedures. At 12 hours postoperatively there were far more soft tissue necrosis, a more extensive inflammatory reaction, and greater destruction of periosteum after electrosurgery. No significant changes in osteocyte viability were seen after either technique. However, by 24 hours, many empty lacunae were observed in the bone associated with electrosurgery, such necrosis being even more extensive by 48 hours. In contrast, only very minor, localised areas devoid of some osteocytes were seen after use of the conventional scalpel. By 96 hours the electrosurgical connective tissue wounds were still lined by coagulum, but repair of the scalpel wounds had begun. The periosteum and bone had the same features that were seen at 48 hours. Throughout the study, no increase in osteoclasts was seen in any section, nor were significant changes in adjacent bone marrow observed.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Nixon KC,Adkins KF,Keys DWdoi
10.1902/jop.1975.46.1.40subject
Has Abstractpub_date
1975-01-01 00:00:00pages
40-4issue
1eissn
0022-3492issn
1943-3670journal_volume
46pub_type
杂志文章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::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:A 56-year-old female presented for periodontal treatment with a large amalgam tattoo located in alveolar mucosa on the facial aspect of her maxillary central incisors. The lesion had been present for 42 years since having endodontic surgery at teeth #8 and #9 after a traumatic childhood incident. METHODS:A ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080613
更新日期:2009-05-01 00:00:00
abstract::Periodontal diseases are thought to result from inflammatory responses to bacterial challenges in the gingival crevicular area. Antibodies are a major host-protective mechanism in many bacterial infections. Consequently, the antibody responses to suspected periodontal pathogenic bacteria have been extensively measured...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1993.64.8s.807
更新日期:1993-08-01 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 advent of AIDS has created patients fears regarding human tissue transfers, including bone grafts in dental surgery. In the face of these fears, alternative allograft materials are of increasing interest to clinicians. One such alternative is naturally derived xenogeneic hydroxyapatite (HA). In this study, two pat...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1993.64.6.575
更新日期:1993-06-01 00:00:00
abstract:BACKGROUND:Various surgical techniques have been proposed for treating gingival recession. This randomized clinical trial compared the coronally positioned flap (CPF) alone or in conjunction with a subepithelial connective tissue graft (SCTG) in the treatment of gingival recession. METHODS:Eleven non-smoking subjects ...
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.2004.75.3.413
更新日期:2004-03-01 00:00:00
abstract::The objective of this study was to evaluate if the biologic membrane utilized for GTR can be impregnated by tetracycline hydrochloride and if the chemotherapeutic agent, once impregnated, can be released in minimal inhibitory concentrations for a period compatible with clinical application. Initially, an in vitro stud...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1995.66.11.978
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:Despite previous studies addressing the link between preterm or low birth weight infants and maternal periodontitis, extreme preterm births have received far less attention. This study is designed to address the possible association between maternal periodontal disease and preterm or extreme preterm birth. ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090527
更新日期:2010-03-01 00:00:00
abstract::We review the basic functions of neurotrophins and their receptors and discuss the expression and functions of neurotrophins and their specific receptors based on recent data using cultured cells from human periodontal tissues. Neurotrophins, nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neu...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2003.74.1.76
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:The aims of this study are to determine whether the antigen-inexperienced (naive, CD45RB high-density) T-cell (CD4(+)CD45RB(High) T-cell) transfer model is associated with alveolar bone resorption, to elucidate the local osteogenic/adipogenic potential of alveolar bone marrow stromal cells (ABCs) from T-cell...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140077
更新日期:2014-09-01 00:00:00
abstract::Osseous grafting techniques represent one mode of therapy to manage combination pocket-osseous defects. They have their greatest applicability in the intrabony defect although encouraging results have been noted in furcation and suprabony sites. Like all treatment modalities, their usage is dictated by the therapeutic...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1977.48.9.570
更新日期:1977-09-01 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:BACKGROUND:It is hypothesized that levels of advanced glycation end products (AGEs) are higher in the gingival crevicular fluid (GCF) of chronic periodontitis (CP) patients with type-2 diabetes mellitus (type-2 DM) than controls (systemically healthy individuals without CP. The aim was to assess the levels of AGEs in t...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0209
更新日期:2020-03-01 00:00:00
abstract::Demineralized bone matrix (DBM) is widely used in the repair of pathologies associated with skeletal defects and periodontal diseases. The present study was directed at establishing in vivo and in vitro models for a quantitative assessment of the osteoinductivity of DBM before clinical use. Athymic mice were used in a...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1997.68.11.1076
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:The levels of interleukin-1β (IL-1β) have been reported to be higher in sites with periodontitis than in healthy controls. This may be the result of a more severe inflammation and/or constitutional differences in IL-1β production. Our aim was to test the hypothesis that the level of IL-1β in gingival crevicu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.12.1457
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND:Microscopic and immunocytochemical studies have demonstrated both similarities and differences between the gingival mucosa and the peri-implant mucosa restored around dental implants. METHODS:This study was performed on 10 samples of peri-implant mucosa from 10 patients who had undergone implant treatment 1...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.5.555
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:Chronic exposure to occupational noise is reported to cause a wide range of health problems. But, there are no reports on studies investigating the association between noise exposure and periodontitis. The purpose of this study was to examine the relationship between occupational noise exposure and periodont...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.17-0484
更新日期:2018-04-01 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::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...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.1.41
更新日期:1998-01-01 00:00:00
abstract::An investigation into periodontal disease in the Syrian Golden hamster was conducted over a period of six months. With the periodontitis-producing Diet 2000 only mild destruction of the periodontium was observed. The interproximal area between M1 and M2 may be a better area for analysis of early periodontal disease in...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.6.368
更新日期:1975-06-01 00:00:00
abstract:BACKGROUND:Members of the matrix metalloproteinase (MMP) family are implicated in the chronic remodeling in periodontal diseases. Therefore, we performed a case-control study to investigate a plausible association between susceptibility to chronic periodontitis (CP) and the polymorphisms in the MMP-9 (gelatinase B) gen...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050347
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Immediate functional loading is a new surgical-prosthetic technique that can be used extensively in implant placement. Because of a lack of experimental reports regarding edentulous maxilla, we decided to evaluate the survival rate of immediately loaded dental implants in this area. METHODS:Forty-three pati...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.6.1016
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Low-calorie diets are commonplace for reducing body weight. However, no information is available on the effects of a reduced-calorie diet on periodontal inflammation and disease. The purpose of this study was to evaluate the clinical effects of a long-term calorie-restriction (CR) diet on periodontitis in an...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070629
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:Pregnancy induces or enhances susceptibility to gingivitis; however, the presence and role of neutrophilic enzymes in pregnancy-related gingivitis are not well known. The present study demonstrates the relationship between neutrophilic enzymes in gingival crevicular fluid (GCF) and periodontal status during ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100147
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:It has been shown that lowering the concentration of chlorhexidine (CHX) in mouthrinses from 0.2% to 0.12% does not adversely affect inhibition of plaque accumulation. The aim of this study was to evaluate the inhibition of plaque growth by 2 commercially available mouthrinses used according to the manufactu...
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.2003.74.2.214
更新日期:2003-02-01 00:00:00
abstract::The purpose of this study was to evaluate interexaminer and intraexaminer probing force variations in various regions of the mouth and adjacent to different tooth surfaces. Fifty-eight dental clinicians composed of 13 periodontists, 15 general dentists, 15 hygienists and 15 senior dental students probed the facial sur...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1983.54.8.488
更新日期:1983-08-01 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:Caspases are key mediators of apoptosis. Caspase-8 mediates extrinsic, and caspase-9 initiates the intrinsic pathway of apoptosis. Apoptosis Inducing Factor (AIF), a mitochondrial proapoptotic protein, mediates cell death by a caspase-independent process. Because apoptosis is involved in periodontal disease,...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.17-0716
更新日期:2019-03-01 00:00:00
abstract:BACKGROUND:The aim of the present study was to evaluate the effect of strict supragingival plaque control on the subgingival microbiota in smokers and never-smokers. Research into the impact of supragingival plaque control on the number of subgingival bacteria has resulted in contradictory findings. Real-time polymeras...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2008.070558
更新日期:2008-12-01 00:00:00