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Journal of Periodontal & Implant Science

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https://www.readbyqxmd.com/read/29984049/guided-bone-regeneration-using-k-incision-technique
#1
Young-Dan Cho, Young Ku
Purpose: The present study describes 3 patients with chronic periodontitis and consequent vertical resorption of the alveolar ridge who were treated using implant-based restoration with guided bone regeneration (GBR). Methods: After extraction of a periodontally compromised tooth, vertical bone augmentation using a K-incision was performed at the healed, low-level alveolar ridge. Results: The partial-split K-incision enabled soft tissue elongation without any change in buccal vestibular depth, and provided sufficient keratinized gingival tissue during GBR...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984048/tissue-integration-of-zirconia-and-titanium-implants-with-and-without-buccal-dehiscence-defects
#2
Hyun-Chang Lim, Ronald Ernst Jung, Christoph Hans Franz Hämmerle, Myong Ji Kim, Kyeong-Won Paeng, Ui-Won Jung, Daniel Stefan Thoma
Purpose: The purpose of the present study was to validate an experimental model for assessing tissue integration of titanium and zirconia implants with and without buccal dehiscence defects. Methods: In 3 dogs, 5 implants were randomly placed on both sides of the mandibles: 1) Z1: a zirconia implant (modified surface) within the bony housing, 2) Z2: a zirconia implant (standard surface) within the bony housing, 3) T: a titanium implant within the bony housing, 4) Z1_D: a Z1 implant placed with a buccal bone dehiscence defect (3 mm), and 5) T_D: a titanium implant placed with a buccal bone dehiscence defect (3 mm)...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984047/a-radiographic-evaluation-of-graft-height-changes-after-maxillary-sinus-augmentation
#3
Do-Hyung Kim, Min-Jeong Ko, Jae-Hong Lee, Seoung-Nyum Jeong
Purpose: The aims of the present study were to quantitatively assess graft height changes after sinus lift procedures and to analyze the factors that influenced graft height changes, including the residual bone height before surgery, surgical approach, and tooth type. Methods: A total of 39 maxillary posterior implants placed during a simultaneous sinus lift procedure were evaluated. Panoramic radiographs of all patients were taken immediately after implant installation and at 3 months, 6 months, 1 year, 2 years, and 3 years...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984046/efficacy-of-an-led-toothbrush-on-a-porphyromonas-gingivalis-biofilm-on-a-sandblasted-and-acid-etched-titanium-surface-an-in-vitro-study
#4
Hae Lee, Yong-Gun Kim, Heung-Sik Um, Beom-Seok Chang, Si Young Lee, Jae-Kwan Lee
Purpose: The aim of this study was to evaluate the antimicrobial effect of a newly devised toothbrush with light-emitting diodes (LEDs) on Porphyromonas gingivalis attached to sandblasted and acid-etched titanium surfaces. Methods: The study included a control group, a commercial photodynamic therapy (PDT) group, and 3 test groups (B, BL, and BLE). The disks in the PDT group were placed in methylene blue and then irradiated with a diode laser. The B disks were only brushed, the BL disks were brushed with an LED toothbrush, and the BLE disks were placed into erythrosine and then brushed with an LED toothbrush...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984045/oral-tissue-response-to-soft-tissue-expanders-prior-to-bone-augmentation-in-vitro-analysis-and-histological-study-in-dogs
#5
Jung Min Yoo, Heithem Ben Amara, Min Kyoung Kim, Ju Dong Song, Ki-Tae Koo
Purpose: To determine whether the swelling and mechanical properties of osmotic self-inflating expanders allow or not the induction of intraoral soft tissue expansion in dogs. Methods: Three different volumes (0.15, 0.25, and 0.42 mL; referred to respectively as the S , M , and L groups) of soft tissue expanders (STEs) consisting of a hydrogel core coated with a silicone-perforated membrane were investigated in vitro to assess their swelling behavior (volume swelling ratio) and mechanical properties (tensile strength, tensile strain)...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984044/the-effects-of-ozone-therapy-as-an-adjunct-to-the-surgical-treatment-of-peri-implantitis
#6
Sila Cagri Isler, Berrin Unsal, Fatma Soysal, Gonen Ozcan, Elif Peker, Inci Rana Karaca
Purpose: The decontamination procedure is a challenging aspect of surgical regenerative therapy (SRT) of peri-implantitis that affects its success. The purpose of the present study was to determine the impact of additional topical gaseous ozone therapy on the decontamination of implant surfaces in SRT of peri-implantitis. Methods: A total of 41 patients (22 males, 19 females; mean age, 53.55±8.98 years) with moderate or advanced peri-implantitis were randomly allocated to the test group (ozone group) with the use of sterile saline with additional ozone therapy or the control group with sterile saline alone for decontamination of the implant surfaces in SRT of peri-implantitis...
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29984043/our-take-on-2018-journal-citation-reports
#7
EDITORIAL
Tae-Il Kim
No abstract text is available yet for this article.
June 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770241/methods-for-quantitative-measurement-of-tooth-wear-using-the-area-and-volume-of-virtual-model-cusps
#8
Soo-Hyun Kim, Young-Seok Park, Min-Kyoung Kim, Sulhee Kim, Seung-Pyo Lee
Purpose: Clinicians must examine tooth wear to make a proper diagnosis. However, qualitative methods of measuring tooth wear have many disadvantages. Therefore, this study aimed to develop and evaluate quantitative parameters using the cusp area and volume of virtual dental models. Methods: The subjects of this study were the same virtual models that were used in our former study. The same age group classification and new tooth wear index (NTWI) scoring system were also reused...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770240/diagnosis-and-prediction-of-periodontally-compromised-teeth-using-a-deep-learning-based-convolutional-neural-network-algorithm
#9
Jae-Hong Lee, Do-Hyung Kim, Seong-Nyum Jeong, Seong-Ho Choi
Purpose: The aim of the current study was to develop a computer-assisted detection system based on a deep convolutional neural network (CNN) algorithm and to evaluate the potential usefulness and accuracy of this system for the diagnosis and prediction of periodontally compromised teeth (PCT). Methods: Combining pretrained deep CNN architecture and a self-trained network, periapical radiographic images were used to determine the optimal CNN algorithm and weights...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770239/comparison-of-marginal-bone-loss-between-internal-and-external-connection-dental-implants-in-posterior-areas-without-periodontal-or-peri-implant-disease
#10
Dae-Hyun Kim, Hyun Ju Kim, Sungtae Kim, Ki-Tae Koo, Tae-Il Kim, Yang-Jo Seol, Yong-Moo Lee, Young Ku, In-Chul Rhyu
Purpose: The purpose of this retrospective study with 4-12 years of follow-up was to compare the marginal bone loss (MBL) between external-connection (EC) and internal-connection (IC) dental implants in posterior areas without periodontal or peri-implant disease on the adjacent teeth or implants. Additional factors influencing MBL were also evaluated. Methods: This retrospective study was performed using dental records and radiographic data obtained from patients who had undergone dental implant treatment in the posterior area from March 2006 to March 2007...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770238/charlson-comorbidity-index-as-a-predictor-of-periodontal-disease-in-elderly-participants
#11
Jae-Hong Lee, Jung-Kyu Choi, Seong-Nyum Jeong, Seong-Ho Choi
Purpose: This study investigated the validity of the Charlson comorbidity index (CCI) as a predictor of periodontal disease (PD) over a 12-year period. Methods: Nationwide representative samples of 149,785 adults aged ≥60 years with PD (International Classification of Disease, 10th revision [ICD-10], K052-K056) were derived from the National Health Insurance Service-Elderly Cohort during 2002-2013. The degree of comorbidity was measured using the CCI (grade 0-6), including 17 diseases weighted on the basis of their association with mortality, and data were analyzed using multivariate Cox proportional-hazards regression in order to investigate the associations of comorbid diseases (CDs) with PD...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770237/quantitative-measurement-of-peri-implant-bone-defects-using-optical-coherence-tomography
#12
Sulhee Kim, Se-Ryong Kang, Hee-Jung Park, Bome Kim, Tae-Il Kim, Won-Jin Yi
Purpose: The purpose of this study was to visualize and identify peri-implant bone defects in optical coherence tomography (OCT) images and to obtain quantitative measurements of the defect depth. Methods: Dehiscence defects were intentionally formed in porcine mandibles and implants were simultaneously placed without flap elevation. Only the threads of the fixture could be seen at the bone defect site in the OCT images, so the depth of the peri-implant bone defect could be measured through the length of the visible threads...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770236/magnoliae-cortex-and-maize-modulate-porphyromonas-gingivalis-induced-inflammatory-reactions
#13
Jae-Yoon Kim, Kyoung-Hwa Kim, Eun-Hye Kwag, Yang Jo Seol, Yong Moo Lee, Young Ku, In-Chul Rhyu
Purpose: The aim of this study was to evaluate the capacity of single and combined applications of the bark of the stems and roots of Magnolia officinalis Rehd. et Wils. (Magnoliae Cortex) and Zea mays L. (maize) to modulate inflammation in RAW 264.7 cells stimulated with Porphyromonas gingivalis . Methods: RAW 264.7 cells were stimulated with P. gingivalis , and Magnoliae Cortex and/or maize was added. Cytotoxicity and the capacity to modulate inflammation were determined with a methylthiazol tetrazolium (MTT) assay, nitrite production, enzyme-linked immunosorbent assay (ELISA), and western blotting...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770235/hopes-of-becoming-the-bridge-for-north-korean-scientists-to-the-world
#14
EDITORIAL
Tae-Il Kim
No abstract text is available yet for this article.
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535891/-porphyromonas-gingivalis-accelerates-atherosclerosis-through-oxidation-of-high-density-lipoprotein
#15
Hyun-Joo Kim, Gil Sun Cha, Hyung-Joon Kim, Eun-Young Kwon, Ju-Youn Lee, Jeomil Choi, Ji-Young Joo
Purpose: The aim of this study was to evaluate the ability of Porphyromonas gingivalis ( P. gingivalis ) to induce oxidation of high-density lipoprotein (HDL) and to determine whether the oxidized HDL induced by P. gingivalis exhibited altered antiatherogenic function or became proatherogenic. Methods: P. gingivalis and THP-1 monocytes were cultured, and the extent of HDL oxidation induced by P. gingivalis was evaluated by a thiobarbituric acid-reactive substances (TBARS) assay...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535890/clinical-and-microbiological-effects-of-egg-yolk-antibody-against-porphyromonas-gingivalis-as-an-adjunct-in-the-treatment-of-moderate-to-severe-chronic-periodontitis-a-randomized-placebo-controlled-clinical-trial
#16
Yan Xu, Tshepiso Selerio-Poely, Xingru Ye
Purpose: To evaluate the clinical and microbiological effects of the local use of egg yolk immunoglobulin against Porphyromonas gingivalis (anti- P.g. IgY) as an adjunct to scaling and root planing (SRP) in the treatment of moderate to severe chronic periodontitis. Methods: This was a randomized, placebo-controlled, double-blind trial involving 60 systematically healthy patients with moderate to severe chronic periodontitis. Subjects (n=20/group) were randomly assigned to receive SRP combined with subgingival irrigation of anti- P...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535889/effects-of-1-25-dihydroxyvitamin-d-3-on-the-differentiation-of-mc3t3-e1-osteoblast-like-cells
#17
Hyun-Soo Kim, Mingzhen Zheng, Do-Kyung Kim, Won-Pyo Lee, Sang-Joun Yu, Byung-Ock Kim
Purpose: The purpose of this study was to evaluate the effects of 1,25-dihydroxyvitamin D3 on the proliferation, differentiation, and matrix mineralization of MC3T3-E1 osteoblast-like cells in vitro. Methods: MC3T3-E1 osteoblastic cells and 1,25-dihydroxyvitamin D3 were prepared. Cytotoxic effects and osteogenic differentiation were evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, alkaline phosphatase (ALP) activity assay, ALP staining, alizarin red S staining, and reverse transcription-polymerase chain reaction (RT-PCR) for osteogenic differentiation markers such as ALP, collagen type I (Col-I), osteocalcin (OCN), vitamin D receptor (VDR), and glyceraldehyde 3-phosphate dehydrogenase...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535888/effective-professional-intraoral-tooth-brushing-instruction-using-the-modified-plaque-score-a-randomized-clinical-trial
#18
Se-Ho Park, Sung-Hee Cho, Ji-Young Han
Purpose: The purpose of this study was to evaluate the efficacy of the modified plaque score (MPS) for assessing the oral hygiene status of periodontitis patients. Methods: A total of 116 patients were included in this study. After evaluation of the Löe and Silness gingival index (GI), Silness and Löe plaque index (PlI), O'Leary plaque control record (PCR), and MPS, patients were randomly assigned to either a conventional tooth brushing instruction (C-TBI) group (n=56) or a professional intraoral tooth brushing instruction (P-TBI) group (n=60)...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535887/an-in-vitro-model-of-fusobacterium-nucleatum-and-porphyromonas-gingivalis-in-single-and-dual-species-biofilms
#19
Lívia Jacovassi Tavares, Marlise Inêz Klein, Beatriz Helena Dias Panariello, Erica Dorigatti de Avila, Ana Cláudia Pavarina
Purpose: The goal of this study was to develop and validate a standardized in vitro pathogenic biofilm attached onto saliva-coated surfaces. Methods: Fusobacterium nucleatum (F. nucleatum) and Porphyromonas gingivalis (P. gingivalis) strains were grown under anaerobic conditions as single species and in dual-species cultures. Initially, the bacterial biomass was evaluated at 24 and 48 hours to determine the optimal timing for the adhesion phase onto saliva-coated polystyrene surfaces...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29535886/trends-in-the-utilization-of-dental-outpatient-services-affected-by-the-expansion-of-health-care-benefits-in-south-korea-to-include-scaling-a-6-year-interrupted-time-series-study
#20
Hee-Jung Park, Jun Hyup Lee, Sujin Park, Tae-Il Kim
Purpose: This study utilized a strong quasi-experimental design to test the hypothesis that the implementation of a policy to expand dental care services resulted in an increase in the usage of dental outpatient services. Methods: A total of 45,650,000 subjects with diagnoses of gingivitis or advanced periodontitis who received dental scaling were selected and examined, utilizing National Health Insurance claims data from July 2010 through November 2015. We performed a segmented regression analysis of the interrupted time-series to analyze the time-series trend in dental costs before and after the policy implementation, and assessed immediate changes in dental costs...
February 2018: Journal of Periodontal & Implant Science
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