Abstract:
BACKGROUND:Surface modifications to dental implants have been used in an attempt to accelerate the osseointegration process. The objective of this study was to biomechanically/histomorphometrically evaluate a bioceramic grit-blasted and acid-etched surface (BGB/AA; test) versus a dual acid-etched implant surface (control) in a beagle dog model. METHODS:Control and BGB/AA implants were subjected to a series of physicochemical characterization tools, including scanning electron microscopy (SEM), atomic force microscopy (AFM), and auger photoelectron spectroscopy (APS). The animal model included the placement of 72 implants along the proximal tibiae of six beagle dogs, which remained in place for 2 or 4 weeks. After euthanization, half of the specimens were biomechanically tested (removal torque), and the other half was non-decalcified processed to slides of approximately 30 microm thickness for histomorphologic and histomorphometric (percentage of bone-to-implant contact [%BIC]) evaluation. Analysis of variance at the 95% confidence level and the Tukey post hoc test were used for multiple comparisons. RESULTS:SEM and AFM showed that surface microtextures were qualitatively and quantitatively different and that the BGB/AA surface presented higher submicrometer average roughness values (R(a)) and root mean square (RMS) values compared to control surfaces. Ca and P were detected at the BGB/AA surface by APS. Higher degrees of bone organization were observed along the perimeter of the BGB/AA surface compared to control, despite the non-significant differences in %BIC between the surfaces (P >0.25). Significantly higher removal torque was observed for the BGB/AA implants at both time periods (P <0.0001). CONCLUSION:According to the biomechanical and histomorphologic results, early biomechanical fixation was positively affected by the BGB/AA surface compared to the dual-acid etched surface.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Marin C,Granato R,Suzuki M,Gil JN,Piattelli A,Coelho PGdoi
10.1902/jop.2008.080106subject
Has Abstractpub_date
2008-10-01 00:00:00pages
1942-9issue
10eissn
0022-3492issn
1943-3670journal_volume
79pub_type
杂志文章abstract:BACKGROUND:The habit of chewing areca quid (AQ) has been implicated in oral pathogenesis, including periodontal disease. Little is understood about the roles of AQ in the cytokine secretion by immune cells. The study examined the effects of areca nut, the major ingredient of AQ, on the production of interleukin (IL)-6 ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.060039
更新日期:2006-12-01 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:BACKGROUND:The aerosol generated by an ultrasonic scaler contains microorganisms that can penetrate into the body through the respiratory system of dental surgeons and patients. The aim of this pilot study is to evaluate and compare the efficacy of commercially available preprocedural mouthrinses containing 0.2% chlorh...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2013.120616
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:The aim of this study is to investigate effects of strontium ranelate (SR) on alveolar bone loss (ABL) in rats with experimental periodontitis. METHODS:Forty Wistar rats were randomly divided into five groups: 1) control (n = 8); 2) ligated (n = 8); 3) 300 mg/kg SR (SR300, n = 8); 4) 625 mg/kg SR (SR625, n ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2016.160227
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:Enhanced neutrophil responses play a critical role in the activation of the innate immune system and causation of aggressive periodontitis (AgP). The hypothesis that comprehensive periodontal treatment expedites resolution of amplified leukocyte activity and facilitates the reconstitution of periodontal heal...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.9.995
更新日期:2002-09-01 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::The inter-incisal distance and dimension of the interdental papilla between the mandibular incisors were examined in cyclosporin A (CSA) fed rats over 6 weeks. Rats in the test group received CSA daily in mineral oil by gastric feeding (30 mg/kg body weight); the control group received mineral oil only. The inter-inci...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1997.68.12.1231
更新日期:1997-12-01 00:00:00
abstract::Ninety patient records were examined in order to determine radiographically whether an association between open interproximal contacts and increased alveolar bone loss exists. The amount of alveolar bone in the open contact site was compared to the amount of alveolar bone in the contralateral closed contact site. Open...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1981.52.8.447
更新日期:1981-08-01 00:00:00
abstract::The purpose of this study was to determine the levels of calprotectin and lactoferrin, 2 microbiostatic proteins, in the gingival crevicular fluid (GCF) of normal children. The children represented a population, primarily underprivileged, seeking care at a regional dental health care center. GCF was collected from Ram...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.8.879
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Periodontal disease has been associated with cardiovascular disorders with an atherosclerotic background, and number of teeth (NT) has been suggested as a possible risk indicator for cardiovascular disease. The objective of this study is to investigate whether NT was related to the intima-media thickness (IM...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2011.110100
更新日期:2012-03-01 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::The purpose of this study was to assess the clinical and microbiological effects of a newly developed root conditioning gel system containing tetracycline or a mixture of tetracycline and citric acid on non-surgical periodontal therapy. Sixty-four (64) single-rooted teeth with a probing depth of 4 to 6 mm were randoml...
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.1994.65.9.840
更新日期:1994-09-01 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::Ultrasonic and sonic scalers appear to attain similar results as hand instruments for removing plaque, calculus, and endotoxin. Ultrasonic scalers used at medium power seem to produce less root surface damage than hand or sonic scalers. Due to instrument width, furcations may be more accessible using ultrasonic or son...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2000.71.11.1792
更新日期:2000-11-01 00:00:00
abstract::A 4-quadrant, single-blind study was designed to test the efficacy of periodontal disease therapy by local drug delivery. A delivery system made of extruded ethylene vinyl acetate fibers loaded with 25% USP tetracycline hydrochloride was placed and maintained in periodontal pockets for 10 days. The clinical effects of...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1985.56.11s.81
更新日期:1985-11-01 00:00:00
abstract:BACKGROUND:The purpose of this clinical study is to evaluate the radiographic bone remodeling, survival rate, and soft tissue health surrounding a variable-thread tapered implant immediately placed in extraction sites. METHODS:Sixty implants were placed in 55 patients at six centers according to a predetermined protoc...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1902/jop.2013.120638
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:This cross-sectional study aimed to evaluate the association between body mass index (BMI) and body fat with gingivitis in 613 adults of Porto Alegre, Brazil. METHODS:Individuals with at least four teeth were included in this study. They were identified through a multi-stage probability sampling, considerin...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.17-0292
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:Platelet-rich plasma (PRP) has been promoted as a surgical adjunct to enhance hard and soft tissue wound healing. Although anecdotally reported to be of value, the results of controlled studies examining the added effects of PRP on surgical procedures have been mixed. The purpose of this study was to test th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080626
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:It has been shown that toll-like receptor (TLR) 2- and TLR4-stimulating abilities of supragingival plaque (SPP) are associated with periodontal conditions. It is hypothesized that SPP might affect the periodontium through its influence on subgingival plaque (SBP). This study investigates relationships betwee...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2016.150573
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:The purpose of this study is to determine whether sex dimorphism exists in the expression of inflammatory and apoptotic mediators in gingiva obtained from normal and diseased sites of periodontal disease. METHODS:Gingival papillae were obtained from individuals (56 males and 62 females) who required extract...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.130718
更新日期:2014-11-01 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:BACKGROUND:Some studies have advocated marrow penetration in guided bone augmentation (GBA), whereas others have shown that bone can be generated without marrow penetration. This study examined the effect of marrow penetration and the optimal rate of penetration. METHODS:In 10 rabbits, the calvarium was exposed, and c...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.070086
更新日期:2007-10-01 00:00:00
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::Localized juvenile periodontitis (LJP) is an aggressive periodontal disease of familial nature. Neutrophils from a majority of patients with this disease exhibit decreased Chemotaxis with increased adherence, oxidative burst, and degranulation in response to opsonized bacteria. It is proposed that the biological basis...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.3s.337
更新日期:1996-03-01 00:00:00
abstract::The purpose of this study was to evaluate the feasibility and reliability of using a home screening occult blood test to detect the presence of gingival inflammation. Fifty (50) healthy male and female subjects participated in this study. Pre- and post-stimulation saliva samples were obtained and tested for occult blo...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1995.66.1.52
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Some studies have reported an association between gestational diabetes mellitus (GDM) and periodontitis. The aim of the present study is to analyze this potential association and the influence of risk variables associated with GDM. METHODS:This case-control study includes 360 women, 90 with GDM and 270 cont...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2012.120350
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:A J-shaped relationship of body mass index (BMI) with severe periodontitis has been reported. However, it is unknown for other anthropometric indexes in young adults. METHODS:A cross-sectional study examined the relationships in 325 military men and women, aged 20 to 45 years in Taiwan. Anthropometric index...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.20-0275
更新日期:2020-11-03 00:00:00
abstract:BACKGROUND:A 5-year-old Japanese boy presented with persistent gingival inflammation and severe mobility of the right lower primary incisors. Due to severe alveolar bone loss and a deep periodontal pocket (5 mm), the incisors were extracted at the second visit. METHODS:Clinical, radiographic, histological, and microbi...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.7.1060
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND:This study compares the levels of cytokines and bone-related factors in the gingival crevicular fluid (GCF) of systemically healthy patients with chronic periodontitis (CP); and better-controlled, and poorly controlled patients with type 2 diabetes and CP. METHODS:Thirty-seven patients with type 2 diabetes ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2011.100643
更新日期:2011-08-01 00:00:00
abstract::In this study, fine structural features of the pocket walls in rapidly progressive periodontitis (RPP) and adult periodontitis (AP) in 20 cases were compared using light and transmission electron microscopy. Gingiva was also obtained from a control group of periodontally healthy teeth. Clinical parameters were assesse...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1998.69.2.195
更新日期:1998-02-01 00:00:00