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Journal of Periodontal & Implant Science

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https://www.readbyqxmd.com/read/28462010/substrate-roughness-induces-the-development-of-defective-e-cadherin-junctions-in-human-gingival-keratinocytes
#1
Chengbiao Jin, Gayoung Lee, Changseok Oh, Hyun Jung Kim, Hyun-Man Kim
PURPOSE: The entry of bacteria or harmful substances through the epithelial seal of human gingival keratinocytes (HGKs) in the junctional epithelium (JE) is blocked by specialized intercellular junctions such as E-cadherin junctions (ECJs). However, the influence of roughened substrates, which may occur due to apical migration of the JE, root planing, or peri-implantitis, on the development of the ECJs of HGKs remains largely unknown. METHODS: HGKs were cultured on substrates with varying levels of roughness, which were prepared by rubbing hydrophobic polystyrene dishes with silicon carbide papers...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462009/a-resonance-frequency-analysis-of-sandblasted-and-acid-etched-implants-with-different-diameters-a-prospective-clinical-study-during-the-initial-healing-period
#2
Hyun-Joo Kim, Yeun-Kang Kim, Ji-Young Joo, Ju-Youn Lee
PURPOSE: The possibility of immediate or early loading has become popular in implant dentistry. A prerequisite for the immediate or early loading of an implant prosthesis is the achievement of initial stability in the implant. Moreover, in response to clinicians' interest in verifying clinical stability to determine the optimal time point for functional loading, a non-invasive method to assess implant stability has been developed on the basis of resonance frequency analysis (RFA). The primary objective of this study was to monitor the stability of sandblasted, large-grit, and acid-etched (SLA) implants with different diameters during the early phases of healing by RFA...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462008/association-between-periodontal-flap-surgery-for-periodontitis-and-vasculogenic-erectile-dysfunction-in-koreans
#3
Jae-Hong Lee, Jung-Kyu Choi, Sang-Hyun Kim, Kyung-Hyun Cho, Young-Taek Kim, Seong-Ho Choi, Ui-Won Jung
PURPOSE: The National Health Insurance Service-National Sample Cohort and medical checkup data from 2002 to 2013 were used to evaluate the association between periodontal surgery for the treatment of periodontitis (PSTP) and vasculogenic erectile dysfunction (VED). METHODS: Bivariate and multivariate logistic regression analyses were applied to a longitudinal retrospective database to assess the association between PSTP and VED while adjusting for the potential confounding effects of sociodemographic factors (age, household income, insurance status, health status, residence area, and smoking status) and comorbidities (diabetes mellitus, angina pectoris, cerebral infarction, and myocardial infarction)...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462007/sinus-augmentation-using-rhbmp-2-loaded-synthetic-bone-substitute-with-simultaneous-implant-placement-in-rabbits
#4
Myung-Jae Joo, Jae-Kook Cha, Hyun-Chang Lim, Seong-Ho Choi, Ui-Won Jung
PURPOSE: The aim of this study was to determine the effect of recombinant human bone morphogenetic protein-2 (rhBMP-2)-loaded synthetic bone substitute on implants that were simultaneously placed with sinus augmentation in rabbits. METHODS: In this study, a circular access window was prepared in the maxillary sinus of rabbits (n=5) for a bone graft around an implant (Ø 3×6 mm) that was simultaneously placed anterior to the window. Synthetic bone substitute loaded with rhBMP-2 was placed on one side of the sinus to form the experimental group, and saline-soaked synthetic bone substitute was placed on the other side of the sinus to form the control group...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462006/regenerative-capacity-of-augmented-bone-in-rat-calvarial-guided-bone-augmentation-model
#5
Tatsuya Kubota, Akira Hasuike, Yasumasa Ozawa, Takanobu Yamamoto, Katsuyoshi Tsunori, Yutaka Yamada, Shuichi Sato
PURPOSE: Guided bone regeneration (GBR) is the most widely used technique to regenerate and augment bones. Even though augmented bones (ABs) have been examined histologically in many studies, few studies have been conducted to examine the biological potential of these bones and the healing dynamics following their use. Moreover, whether the bone obtained from the GBR procedure possesses the same functions as the existing autogenous bone is uncertain. In particular, little attention has been paid to the regenerative ability of GBR bone...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462005/inhibitors-of-dna-methylation-support-tgf-%C3%AE-1-induced-il11-expression-in-gingival-fibroblasts
#6
Irina-Georgeta Sufaru, Gabriel Beikircher, Andreas Weinhaeusel, Reinhard Gruber
PURPOSE: Oral wound healing requires gingival fibroblasts to respond to local growth factors. Epigenetic silencing through DNA methylation can potentially decrease the responsiveness of gingival fibroblasts to local growth factors. In this study, our aim was to determine whether the inhibition of DNA methylation sensitized gingival fibroblasts to transforming growth factor-β1 (TGF-β1). METHODS: Gingival fibroblasts were exposed to 5-aza-2'-deoxycytidine (5-aza), a clinically approved demethylating agent, before stimulation with TGF-β1...
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28462004/pubmed-s-revamped-management-system-is-paying-off
#7
EDITORIAL
Tae-Il Kim
No abstract text is available yet for this article.
April 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261524/a-comparison-of-different-compressive-forces-on-graft-materials-during-alveolar-ridge-preservation
#8
In-Woo Cho, Jung-Chul Park, Hyun-Seung Shin
PURPOSE: Following tooth extraction, alveolar ridge preservation (ARP) can maintain the dimensions of ridge height and width. Although previous studies have demonstrated the effects of ARP, few if any studies have investigated the compressive force applied during grafting. The aim of this study was to determine the effects of different compressive forces on the graft materials during ARP. METHODS: After tooth extraction, sockets were filled with deproteinized bovine bone mineral with 10% porcine collagen and covered by a resorbable collagen membrane in a double-layered fashion...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261523/automatic-detection-of-tooth-cracks-in-optical-coherence-tomography-images
#9
Jun-Min Kim, Se-Ryong Kang, Won-Jin Yi
PURPOSE: The aims of the present study were to compare the image quality and visibility of tooth cracks between conventional methods and swept-source optical coherence tomography (SS-OCT) and to develop an automatic detection technique for tooth cracks by SS-OCT imaging. METHODS: We evaluated SS-OCT with a near-infrared wavelength centered at 1,310 nm over a spectral bandwidth of 100 nm at a rate of 50 kHz as a new diagnostic tool for the detection of tooth cracks...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261522/comparisons-of-the-diagnostic-accuracies-of-optical-coherence-tomography-micro-computed-tomography-and-histology-in-periodontal-disease-an-ex-vivo-study
#10
Jin-Young Park, Jung-Ho Chung, Jung-Seok Lee, Hee-Jin Kim, Seong-Ho Choi, Ui-Won Jung
PURPOSE: Optical coherence tomography (OCT) is a noninvasive diagnostic technique that may be useful for both qualitative and quantitative analyses of the periodontium. Micro-computed tomography (micro-CT) is another noninvasive imaging technique capable of providing submicron spatial resolution. The purpose of this study was to present periodontal images obtained using ex vivo dental OCT and to compare OCT images with micro-CT images and histologic sections. METHODS: Images of ex vivo canine periodontal structures were obtained using OCT...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261521/three-dimensional-microstructure-of-human-alveolar-trabecular-bone-a-micro-computed-tomography-study
#11
Ji-Hyun Lee, Hee-Jin Kim, Jeong-Ho Yun
PURPOSE: The microstructural characteristics of trabecular bone were identified using micro-computed tomography (micro-CT), in order to develop a potential strategy for implant surface improvement to facilitate osseointegration. METHODS: Alveolar bone specimens from the cadavers of 30 humans were scanned by high-resolution micro-CT and reconstructed. Volumes of interest chosen within the jaw were classified according to Hounsfield units into 4 bone quality categories...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261520/improved-accuracy-in-periodontal-pocket-depth-measurement-using-optical-coherence-tomography
#12
Sul-Hee Kim, Se-Ryong Kang, Hee-Jung Park, Jun-Min Kim, Won-Jin Yi, Tae-Il Kim
PURPOSE: The purpose of this study was to examine whether periodontal pocket could be satisfactorily visualized by optical coherence tomography (OCT) and to suggest quantitative methods for measuring periodontal pocket depth. METHODS: We acquired OCT images of periodontal pockets in a porcine model and determined the actual axial resolution for measuring the exact periodontal pocket depth using a calibration method. Quantitative measurements of periodontal pockets were performed by real axial resolution and compared with the results from manual periodontal probing...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261519/treatment-concepts-for-the-posterior-maxilla-and-mandible-short-implants-versus-long-implants-in-augmented-bone
#13
REVIEW
Daniel Stefan Thoma, Jae-Kook Cha, Ui-Won Jung
The aim of this narrative review is to describe treatment options for the posterior regions of the mandible and the maxilla, comparing short implants vs. longer implants in an augmented bone. The dental literature was screened for treatment options enabling the placement of dental implants in posterior sites with a reduced vertical bone height in the maxilla and the mandible. Short dental implants have been increasingly used recently, providing a number of advantages including reduced patient morbidity, shorter treatment time, and lower costs...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28261518/endorsement-of-the-contributor-roles-taxonomy-for-the-clarification-of-authorship
#14
EDITORIAL
Tae-Il Kim
No abstract text is available yet for this article.
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050319/the-hidden-x-suture-a-technical-note-on-a-novel-suture-technique-for-alveolar-ridge-preservation
#15
Jung-Chul Park, Ki-Tae Koo, Hyun-Chang Lim
PURPOSE: The present study investigated the impact of 2 different suture techniques, the conventional crossed mattress suture (X suture) and the novel hidden X suture, for alveolar ridge preservation (ARP) with an open healing approach. METHODS: This study was a prospective randomized controlled clinical trial. Fourteen patients requiring extraction of the maxillary or mandibular posterior teeth were enrolled and allocated into 2 groups. After extraction, demineralized bovine bone matrix mixed with 10% collagen (DBBM-C) was grafted and the socket was covered by porcine collagen membrane in a double-layer fashion...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050318/changes-in-dental-care-access-upon-health-care-benefit-expansion-to-include-scaling
#16
Hee-Jung Park, Jun Hyup Lee, Sujin Park, Tae-Il Kim
PURPOSE: This study aimed to evaluate the effects of a policy change to expand Korean National Health Insurance (KNHI) benefit coverage to include scaling on access to dental care at the national level. METHODS: A nationally representative sample of 12,794 adults aged 20 to 64 years from Korea National Health and Nutritional Examination Survey (2010-2014) was analyzed. To examine the effect of the policy on the outcomes of interest (unmet dental care needs and preventive dental care utilization in the past year), an estimates-based probit model was used, incorporating marginal effects with a complex sampling structure...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050317/association-between-dental-implants-in-the-posterior-region-and-traumatic-occlusion-in-the-adjacent-premolars-a-long-term-follow-up-clinical-and-radiographic-analysis
#17
Jae-Hong Lee, Helen Hye-In Kweon, Seong-Ho Choi, Young-Taek Kim
PURPOSE: The aim of this retrospective study was to determine the association between dental implants in the posterior region and traumatic occlusion in the adjacent premolars, using data collected during from 2002 to 2015. METHODS: Traumatic occlusion in the adjacent premolars was assessed by examining clinical parameters (bleeding on probing, probing pocket depth, fremitus, and tooth mobility) and radiographic parameters (loss of supporting bone and widening of the periodontal ligament space) over a mean follow-up of 5 years...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050316/effectiveness-of-alendronate-as-an-adjunct-to-scaling-and-root-planing-in-the-treatment-of-periodontitis-a-meta-analysis-of-randomized-controlled-clinical-trials
#18
Jin Chen, Qian Chen, Bo Hu, Yunji Wang, Jinlin Song
PURPOSE: Alendronate has been proposed as a local and systemic drug treatment used as an adjunct to scaling and root planing (SRP) for the treatment of periodontitis. However, its effectiveness has yet to be conclusively established. The purpose of the present meta-analysis was to assess the effectiveness of SRP with alendronate on periodontitis compared to SRP alone. METHODS: Five electronic databases were used by 2 independent reviewers to identify relevant articles from the earliest records up to September 2016...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050315/new-method-of-assessing-the-relationship-between-buccal-bone-thickness-and-gingival-thickness
#19
Yun-Jeong Kim, Ji-Man Park, Sungtae Kim, Ki-Tae Koo, Yang-Jo Seol, Yong-Moo Lee, In-Chul Rhyu, Young Ku
PURPOSE: The aim of this study was to determine the relationship between buccal bone thickness and gingival thickness by means of a noninvasive and relatively accurate digital registration method. METHODS: In 20 periodontally healthy subjects, cone-beam computed tomographic images and intraoral scanned files were obtained. Measurements of buccal bone thickness and gingival thickness at the central incisors, lateral incisors, and canines were performed at points 0-5 mm from the alveolar crest on the superimposed images...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28050314/biocompatibility-study-of-lithium-disilicate-and-zirconium-oxide-ceramics-for-esthetic-dental-abutments
#20
Céline Brunot-Gohin, Jean-Luc Duval, Sandra Verbeke, Kayla Belanger, Isabelle Pezron, Gérard Kugel, Dominique Laurent-Maquin, Sophie Gangloff, Christophe Egles
PURPOSE: The increasing demand for esthetically pleasing results has contributed to the use of ceramics for dental implant abutments. The aim of this study was to compare the biological response of epithelial tissue cultivated on lithium disilicate (LS2) and zirconium oxide (ZrO2) ceramics. Understanding the relevant physicochemical and mechanical properties of these ceramics will help identify the optimal material for facilitating gingival wound closure. METHODS: Both biomaterials were prepared with 2 different surface treatments: raw and polished...
December 2016: Journal of Periodontal & Implant Science
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