Abstract:
BACKGROUND:The need for keratinized mucosa (KM) or immobile keratinized mucosa (i.e., attached mucosa [AM]) for the maintenance of osseointegrated endosseous dental implants has been controversial. The purpose of this study was to investigate the significance of KM in the maintenance of root-form dental implants with different surfaces. METHODS:A total of 339 endosseous dental implants in place for at least 3 years in 69 patients were evaluated. The width of KM and AM, modified plaque index (mPI), gingival index (GI), modified bleeding index (mBI), probing depth (PD), and average annual bone loss (ABL) were measured clinically and radiographically by a masked examiner. Based on the amounts of KM or AM, implants were categorized as follows: 1) KM <2 mm (KL); 2) KM > or =2 mm (KU); 3) AM <1 mm (AL); and 4) AM > or =1 mm (AU). Implants were further subdivided into the following four subgroups based on their surface configurations: 1) smooth surface implants (SI) with KM <2 mm (SKL); 2) SI with KM > or =2 mm (SKM); 3) rough surface implants (RI) with KM <2 mm (RKL); or 4) RI with KM > or =2 mm (RKM); or 1) SI with AM <1 mm (SAL); 2) SI with AM > or =1 mm (SAM); 3) RI with AM <1 mm (RAL); or 4) RI with AM > or =1 mm (RAM). The effect of KM or AM on clinical parameters was evaluated by comparing the different KM/AM groups. In addition, the significance of the presence of KM on implant prostheses types (i.e., fixed versus removable) and on implant locations (i.e., anterior versus posterior) was evaluated. RESULTS:Comparison of ABL among the four subgroups in KM or AM failed to reveal statistically significant differences (P >0.05); however, statistically significantly higher GI and mPI were present in SKL or SAL compared to the other three subgroups (P <0.05). GI and mPI were significantly higher in KL (0.94 and 1.51) than KU (0.76 and 1.26) and higher in AL (0.95 and 1.50) than AU (0.70 and 1.19) (P <0.05), respectively. The difference in GI between posterior implants with or without an adequate amount of KM was also significant (P <0.05). CONCLUSIONS:The absence of adequate KM or AM in endosseous dental implants, especially in posterior implants, was associated with higher plaque accumulation and gingival inflammation but not with more ABL, regardless of their surface configurations. Randomized controlled clinical trials are needed to confirm the results obtained in this retrospective clinical study.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Chung DM,Oh TJ,Shotwell JL,Misch CE,Wang HLdoi
10.1902/jop.2006.050393subject
Has Abstractpub_date
2006-08-01 00:00:00pages
1410-20issue
8eissn
0022-3492issn
1943-3670journal_volume
77pub_type
杂志文章abstract:BACKGROUND:Volumetric alterations in gingival crevicular fluid (GCF) are widely accepted to be associated with periodontal health/disease. The volume/flow of GCF was shown to be affected by an array of methodological factors. However, relatively limited information is available on whether GCF is subject to circadian rh...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130367
更新日期:2014-03-01 00:00:00
abstract::This investigation was undertaken to compare the Gindex saliva test scores with the Gingival Index scores and crevicular fluid flow scores, as proposed by Löe and Holm-Pedersen. Eighty-one patients were tested using the Gindex chemical analysis kit. Crevicular fluid was collected from the six teeth advocated by Ramfjo...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1978.49.11.564
更新日期:1978-11-01 00:00:00
abstract::This is a posthumous interview with Dr. Maynard K. Hine (MKH), the second editor of the Journal of Periodontology (from 1950 to 1970), as prepared by Dr. David C. Vandersall (DCV). Dr. Vandersall was a colleague of Dr. Hine while serving as associate clinical professor of periodontics at the Indiana University School ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.6.781
更新日期:2004-06-01 00:00:00
abstract::THIS INVESTIGATION was undertaken to determine the distribution pattern and readability level of 20 widely distributed printed items containing periodontal health education literature. Average annual distribution was obtained from distributors of the material. The Minnesota Interactive Readability Approximation Progra...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1983.54.9.538
更新日期:1983-09-01 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:This preliminary in vitro study, presented at the General Session of the International and American Association for Dental Research in 2010 (Barcelona, Spain), evaluates whether three-dimensional (3D) optical scanning and subsequent superimposing procedures could be used for reproducible volumetric evaluatio...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2011.110143
更新日期:2012-01-01 00:00:00
abstract::In recent years there has been a dramatic increase in the use of nonprecious alloy and porcelain crowns in clinical dentistry. The alloy in these restorations frequently contains a high percentage (greater than 70%) of nickel. Most cases of metal hypersensitivity are related to nickel, and clinical manifestations of t...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1987.58.7.486
更新日期:1987-07-01 00:00:00
abstract:BACKGROUND:Chewing of areca quid increases the prevalence of periodontal diseases. Areca nut extract (ANE) inhibits the phagocytic activity of human neutrophils. This in vitro study investigates the effects of ANE on complement- and antibody-opsonized phagocytosis by neutrophils. Expression of complement receptors, Fc ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130498
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:Although nitric oxide (NO) synthesis is increased in periodontal disease (PD), little is known about the possible sources of production by gingival tissues. In fact, gingival tissues from patients with periodontitis demonstrate greater levels of inducible nitric oxide (iNOS) expression than healthy tissue. M...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.4.392
更新日期:2002-04-01 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:The purpose of this study is to evaluate whether β-tricalcium phosphate (β-TCP) could be a promising modality to help augment alveolar bone in periodontal tissue regeneration by bone marrow mesenchymal stem cells (BMMSCs). METHODS:Expanded BMMSCs and atelocollagen (Col) were mixed together (MSC/Col). A comb...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140384
更新日期:2015-03-01 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
abstract:BACKGROUND:Efficient methods to treat persistent pockets during periodontal maintenance therapy (PMT) require further investigation. The hypothesis of this randomized controlled clinical trial was that local application of enamel matrix derivative (EMD) added to papilla reflection/root preparation (PR/RP) could enhance...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0623
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:Smoking is the most important environmental risk factor for periodontal disease. Elevated levels of serum-soluble CD44 (sCD44) have been detected in smokers and also have been recognized as a diagnostic marker in some smoking-induced diseases. The present study investigates the salivary sCD44 profiles of smo...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.090630
更新日期:2010-05-01 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:BACKGROUND:Contradictory results exist regarding influence of apico-coronal implant placement on crestal bone levels. METHODS:Complete charts of patients ≥18 years old with one or more dental implants were included. Demographic, medical, surgical, and prosthetic information was recorded. Implant bone levels were evalu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.160802
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:The effect of supragingival plaque control on clinical signs of periodontitis is controversial, particularly when smoking habits are considered. This study evaluated the clinical effects of supragingival plaque control on clinical signs of periodontitis in smokers and never-smokers. METHODS:The following da...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2007.060462
更新日期:2007-08-01 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::A randomized double-blind crossover design study using 25 patients requiring bilateral gingival flap surgery was completed. The effect of rinsing postsurgically three times daily with an antimicrobial mouthrinse or physiological saline on dental plaque formation, gingival inflammation, bleeding, wound healing, and pat...
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.1989.60.1.31
更新日期:1989-01-01 00:00:00
abstract::Weary-Kindler syndrome is a rare and poorly understood genetic disorder that has manifestations of both epidermolysis bullosa and poikiloderma congenitale. There are approximately 70 cases documented in the past 40 years but no cases appear in the dental literature, although dental findings have been discussed superfi...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.10.1004
更新日期:1996-10-01 00:00:00
abstract::Subtraction radiography requires radiographs made with identical projection geometry. Recently a new radiographic aiming device and an x-ray beam manipulator made it possible to repeat radiographic exposures in vivo with small angular errors and to measure the angular errors occurring. The purpose of the present inves...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1993.64.4.278
更新日期:1993-04-01 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:This study compared 6-month and 3-year outcomes for root coverage (RC) by coronally advanced flap (CAF) procedures in localized gingival recessions. METHODS:Two centers, that had participated in a 6-month multinational multicenter randomized clinical trial (RCT), followed up 18 patients with 36 Miller Class...
journal_title:Journal of periodontology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1902/jop.2017.160767
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND:It has been established previously that infrared spectroscopy (IRS) can be used to identify periodontitis-specific molecular signatures in gingival crevicular fluid (GCF) and to confirm clinical diagnoses. This follow-up study is designed to assess whether this novel technique is also able to differentiate d...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.120665
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:This prospective and controlled histologic study evaluates the impact of smoking on bone-to-implant contact, the bone density in the threaded area, and the bone density outside the threaded area around microimplants with anodized surface retrieved from human jaws. METHODS:A total of 24 subjects (mean age 51...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.090493
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Sarcoidosis is an inflammatory granulomatous systemic disease that rarely affects the oral cavity. Gingival involvement has been reported in only a very limited number of cases, occasionally as the first manifestation of the disease. This article reports a case of sarcoidosis affecting the gingiva and alveol...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070139
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:Little evidence is available regarding the effects of long-term periodontal infection on diabetes mellitus (DM) control. The aim of this retrospective cohort study is to evaluate influence of periodontal status on changes of glycated hemoglobin (HbA1c) levels of patients with type 2 DM (DMt2). METHODS:Eight...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2016.160140
更新日期:2017-01-01 00:00:00
abstract::Dipeptidyl peptidase (DPP) II and IV activities were demonstrated in unfixed cryostat sections of gingival tissue from chronic periodontitis patients using histochemistry with 2-methoxy-4-naphthylamine (MNA) substrates. In the case of DPP IV, enzyme localization was confirmed by immunocytochemistry with mouse monoclon...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.9.846
更新日期:1996-09-01 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:BACKGROUND:It is estimated that approximately 85% of all halitosis cases have their origin within the mouth; of these, 50% are caused by tongue residues. Previous studies have established that hydrogen sulfide and mercaptans are the primary components of halitosis. Thus, tongue cleaning gains importance as a means of h...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2004.75.7.1009
更新日期:2004-07-01 00:00:00