Abstract:
BACKGROUND:The purpose of this experimental study was to evaluate the collagen fiber distribution histologically after phenytoin, cyclosporin, or nifedipine therapy and to correlate it with collagen I and matrix metalloproteinase (MMP)-1 and -2 gene expression levels. METHODS:Gingival samples from the canine area were obtained from 12 male monkeys (Cebus apella). The mesial part of each sample was assessed by reverse transcription-polymerase chain reaction, whereas the distal part was processed histologically for picrosirius red and hematoxylin and eosin stainings, as well as for collagen IV immunostaining. One week after the first biopsy, the animals were assigned to three groups that received daily oral dosages of cyclosporin, phenytoin, or nifedipine for 120 days. Additional gingival samples were obtained on days 52 and 120 of treatment from two animals from each group on the opposite sides from the first biopsies. RESULTS:Picrosirius red staining showed a predominance of mature collagen fibers in the control group. Conversely, there was an enlargement of areas occupied by immature collagen fibers in all groups at days 52 and 120, which was not uniform over each section. There was a general trend to lower levels of MMP-1 gene expression on day 52 and increased levels on day 120. Phenytoin led to increased levels of MMP-2 and collagen I gene expression on day 120, whereas the opposite was observed in the nifedipine group. CONCLUSION:Cyclosporin, phenytoin, and nifedipine led to phased and drug-related gene expression patterns, resulting in impaired collagen metabolism, despite the lack of prominent clinical signs.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Kanno CM,Oliveira JA,Garcia JF,Castro AL,Crivelini MMdoi
10.1902/jop.2008.070267subject
Has Abstractpub_date
2008-01-01 00:00:00pages
114-22issue
1eissn
0022-3492issn
1943-3670journal_volume
79pub_type
杂志文章abstract::A great deal of controversy has existed in the periodontal literature as to whether the site or the subject should be the unit of analysis. Using the site as the unit of analysis assumes that observations of sites within the same subject are independent and ignores between subject variation. The purpose of this report...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1992.63.6.507
更新日期:1992-06-01 00:00:00
abstract:BACKGROUND:No information exists on periodontitis-associated subgingival microbiota from Turkey. We determined the occurrence, interspecies relationships, and clonal characteristics for a group of periodontal bacteria in a Turkish study population. METHODS:Subgingival microbial samples were obtained from patients with...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.6.803
更新日期:2003-06-01 00:00:00
abstract::The purpose of this study was to evaluate the safety and clinical efficacy of controlled-release tetracycline-containing fibers in patients with refractory periodontitis versus the preceding classical treatment. One hundred twenty-one sites in 20 patients were followed from baseline to 6 months after fiber insertion. ...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1997.68.4.353
更新日期:1997-04-01 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:Subantimicrobial-dose doxycycline (SDD) is widely used as an adjunctive treatment to scaling and root planing (SRP), but its long-term effectiveness remains controversial. The purpose of this systematic review was to assess the actual evidence of the effectiveness of SRP + SDD compared to SRP + placebo in th...
journal_title:Journal of periodontology
pub_type: 杂志文章,meta分析,评审
doi:10.1902/jop.2011.110026
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Reparative tissue of extraction sockets was proposed as grafting material in the treatment of periodontal defects. Our hypothesis was that the addition of growth factors to extraction sockets improves the regenerative potential of this tissue when used as a graft. The objective of the present study was to an...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.10.1681
更新日期:2005-10-01 00:00:00
abstract::Ultrasonic scalers may be operated at different power settings which may influence the final therapeutic result. The displacement amplitude of the scaling tip may affect scaling efficiency or the degree of root surface damage. This investigation aimed to determine whether there was any difference in periodontal healin...
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.1995.66.9.756
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:Coronally advanced flap (CAF) has been shown to effectively treat gingival recession. Platelet-rich plasma (PRP), containing autologous growth factors, has been shown to promote soft tissue healing. Therefore, the purpose of this study was to evaluate the effects of PRP in combination with CAF. METHODS:Twen...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2005.76.10.1768
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Recently, brain-derived neurotrophic factor (BDNF)/high molecular weight hyaluronic acid (HMW-HA) complex with flap surgery has been shown to promote periodontal tissue regeneration. The objective of this study was to evaluate the effects of local subgingival application of BDNF/HMW-HA complex adjunctive to ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.18-0070
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Periodontitis and osteoporosis are characterized by the loss of bone mass. Osteocalcin levels have been postulated as a marker of inhibition of bone formation. The aim of the present study was to assess plasma, saliva, and gingival crevicular fluid (GCF) levels of osteocalcin and correlate them with periodon...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.4.513
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Full-mouth scaling (FMS) is claimed by some researchers to be superior to standard scaling and root planing (SRP). The aim of the present study was to evaluate clinical outcomes of two modalities of non-surgical periodontal therapy for patients with chronic periodontitis. METHODS:In a prospective, randomize...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2007.070010
更新日期:2007-11-01 00:00:00
abstract:BACKGROUND:An experimental periodontal sensor probe (SP) equipped with an optical fiber for recording function was developed. The aim was to test the intraexaminer reproducibility of probing using the SP and to assess the consistency with the manual probe (MP). METHODS:The SP was assembled with an external sheath cove...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2011.110047
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Generalized aggressive periodontitis is described as a clinical entity affecting both deciduous and permanent dentition with extensive alveolar bone loss, mobility, and exfoliation of all or many teeth. Controversy exists on dental implant use to restore missing dentition in younger patients. METHODS:This c...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2001.72.3.411
更新日期:2001-03-01 00:00:00
abstract:BACKGROUND:Titanium dental material can become corroded because of electrochemical interaction in the oral environment. The corrosion process may result in surface modification. It was hypothesized that a titanium surface modified by corrosion may enhance the attachment of periodontal pathogens. This study evaluates th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.130595
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:Morning breath odor is an often-encountered complaint. This double-blind, crossover, randomized study aimed to examine the bad breath-inhibiting effect of 3 commercially available mouthrinses on morning halitosis during an experimental period of 12 days without mechanical plaque control. METHODS:Twelve medi...
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.2000.72.9.1183
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Recent research suggests that osteopenia may be a predisposing factor for periodontal tissue destruction. If so, then a relationship should exist between measures of systemic bone mineral density and periodontal tissue destruction. The purpose of the present cross-sectional study was to evaluate the associat...
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.1999.70.9.982
更新日期:1999-09-01 00:00:00
abstract:BACKGROUND:The objective of this study is to characterize the association between metabolic syndrome (MetS) and periodontitis in women, for which there is limited evidence. METHODS:Cross-sectional associations between MetS and periodontitis were examined in 657 postmenopausal women aged 50 to 79 years enrolled in a pe...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140185
更新日期:2014-11-01 00:00:00
abstract::Temporary splints to immobilize periodontally diseased teeth were made by fiber glass bonded and attached to the teeth with acid-etch technique with BIS-GMA resin. Twenty-one splints were made. Observation time ranged from 4 to 14 months. During the observation only one splint fractured and was repaired while the othe...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1979.50.4.193
更新日期:1979-04-01 00:00:00
abstract:BACKGROUND:Previous studies have focused on antibiotic resistance of Gram-negative bacteria before and after periodontal therapy. The purpose of this analysis is to assess changes in resistance patterns of the commensal Gram-positive microbiota. The viridans group streptococci (VGS) have been suggested to serve as rese...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2015.150494
更新日期:2016-05-01 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:This article reports a rare case of metastasis of salivary duct carcinoma of the parotid gland to the gingiva and reviews the occurrence of metastatic processes to the oral mucosa. METHODS:A 67-year-old white male presented with a chief complaint of a painless nodular tissue growth on the gingiva with repor...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070283
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:Little is known about systemic, environmental, and periodontal risk factors of gingival recessions. This study identifies variables related to buccal gingival recessions in an adult French population; this study uses data collected in the First National Periodontal and Systemic Examination Survey. METHODS:T...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100102
更新日期:2010-10-01 00:00:00
abstract::The correlation between downgrowth of subgingival plaque and loss of attachment was evaluated on 27 teeth which had to be extracted because of advanced bone loss in 16 patients between ages 12 and 22. The diagnostic criteria were those used for periodontosis. The teeth were stained and examined under the stereomicrosc...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1977.48.3.125
更新日期:1977-03-01 00:00:00
abstract:BACKGROUND:Maxillary periodontal surgery typically requires multiple injections and may inadvertently affect facial structures such as the upper lip, lateral aspect of the nose, and lower eyelid. To minimize these sequelae and reduce the number of total injections, a relatively new injection technique has been proposed...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070621
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:Members of the matrix metalloproteinase (MMP) family have been shown to be involved in periodontal disease. Risk factors for periodontal disease include tobacco smoking. Cigarette smoke condensate (CSC) is comprised of thousands of chemicals. Nicotine is one of the active components in tobacco. This study co...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100540
更新日期:2011-07-01 00:00:00
abstract::Studies of the inductive properties of human dentin and cementum have yielded differing results. Comparisons are difficult to draw because of variations in time, donor tissue, host immunologic status, implant site, decalcifying agents and degree of decalcification. Analysis of the many experiments intimates that the a...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1985.56.11.699
更新日期:1985-11-01 00:00:00
abstract:BACKGROUND:This study evaluates the influence of platelet-rich plasma derived from bone marrow aspirate (PRP-BMA) on the healing of periodontal fenestration defects in rats. METHODS:Periodontal fenestration defects were surgically created in the mandibles of 40 rats. The animals were randomly divided into two groups, ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140083
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Procedures to improve peri-implant soft-tissue outcomes of single, immediately placed implants are a topic of interest. This systematic review investigates the effect of various surgical and restorative interventions on implant mid-buccal mucosal level. METHODS:An electronic search of five databases (Januar...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2013.130064
更新日期:2014-01-01 00:00:00
abstract::Public health surveillance has been defined as the ongoing systematic collection, analysis, interpretation, and dissemination of data regarding a health-related event for use in public health action to reduce morbidity and mortality and to improve health. Surveillance is an essential element of public health program i...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2007.060340
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:The analysis of samplings from periodontal pockets is important in the diagnosis and therapy of periodontitis. In this study, three different sampling techniques were compared to determine whether one method yielded samples suitable for the reproducible and simultaneous determination of bacterial load, cytok...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2011.100565
更新日期:2011-07-01 00:00:00