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Journal of Periodontology

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https://www.readbyqxmd.com/read/30222195/detection-of-t-forsythia-and-other-important-bacteria-in-crestal-and-subcrestal-implants-with-ligature-induced-peri-implant-infection-in-dogs
#1
Bin Zhu, Huanxin Meng, Baoxin Huang, ZhiBin Chen, Ruifang Lu
BACKGROUND: The study was designed to compare peri-implant microbial colonization of inflamed implants placed at different levels in dogs. METHODS: Two screwed-in (SI) and two tapped-in (TI) conical connection implants were placed on each side of mandibles in six dogs respectively. Four experimental groups were constituted according to implant types and placement depth in one side: SI crestally (SIC), SI 1.5 mm subcrestally (SIS), TI crestally (TIC), and TI 1.5 mm subcrestally (TIS)...
September 17, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30216457/periodontitis-causes-abnormalities-in-the-liver-of-rats
#2
Any Carolina Cardoso Guimarães Vasconcelos, Daniel Fernando Pereira Vasconcelos, Felipe Rodolfo Pereira da Silva, Luiz Felipe de Carvalho França, Even Herlany Pereira Alves, David Di Lenardo, Larissa Dos Santos Pessoa, Pedro Duarte Novaes, André Luiz Dos Reis Barbosa, Arya Mani, Flávia Sammartino Mariano, Jand-Venes Rolim Medeiros, Aldeídia Pereira de Oliveira
BACKGROUND: Periodontitis not only causes injury to the periodontium, but also damages other tissues such as: articulate, renal, cardiac and hepatic. The objective of this study was to investigate periodontitis induced alterations in liver function and structure using an experimental model. METHODS: Twenty female rats (Rattus norvegicus) were allocated into two groups: control and periodontitis. Gingival bleeding index and oxidative stress parameters and specific circulating biomarkers were measured...
September 14, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30216454/d-walter-cohen-dds-a-visionary-and-gifted-leader
#3
Robert J Genco
Dr. D. Walter Cohen, dean emeritus of the University of Pennsylvania School of Dental Medicine and chancellor emeritus, died on June 29, 2018. He was a visionary and gifted leader, a dreamer and a doer, and he will be sadly missed. He left generations of grateful students and was beloved by his colleagues in dentistry and medicine. This article is protected by copyright. All rights reserved.
September 14, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30192986/ameliorative-effect-of-hesperidin-on-ligation-induced-periodontitis-in-rats
#4
Po-Jan Kuo, Earl Fu, Chi-Yu Lin, Cheng-Te Ku, Cheng-Yang Chiang, Martin Mj Fu, Min-Wen Fu, Hsiao-Pei Tu, Hsien-Chung Chiu
BACKGROUND: This study evaluated the ameliorative effect of hesperidin (HES), an anti-inflammatory flavanone, in rats with ligation (Lig)-induced periodontitis. METHODS: A total of 48 rats were randomly divided into non-ligation group (NL), Lig group, and two ligation-plus-HES groups (L+H). HES was administered immediately after ligature placement at a dose of 75 or 150 mg/kg by intragastric feeding. Destruction of the ligated maxillary second and mandibular first molars were evaluated by dental radiography, micro-computed tomography (micro-CT), and histometry performed after sacrificing the rats on the 7th day...
September 7, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30176171/psychometric-approach-of-the-revised-illness-perception-questionnaire-for-oral-health-ipq-r-oh-in-patients-with-periodontal-disease
#5
Ana C Mafla, Harvey M Herrera-López, Fredy H Villalobos-Galvis
BACKGROUND: The purpose of this study was to evaluate the psychometric properties of the validated Spanish version of the Illness Perception Questionnaire Revised for Oral Health (IPQ-R-OH) in patients with periodontal disease. METHODS: We used the IPQ-R for Oral Health (IPQ-R-OH), a self-reported 36-item scale with. This study was carried out using data from 517 patients with periodontal disease attending the dental clinic at the Universidad Cooperativa de Colombia, Pasto, Colombia...
September 3, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30161278/ridge-preservation-following-tooth-extraction-using-mineralized-freeze-dried-bone-allograft-compared-to-mineralized-solvent-dehydrated-bone-allograft-a-randomized-controlled-clinical-trial
#6
Patrick J Corning, Brian L Mealey
BACKGROUND: Freeze dried bone allograft (FDBA) and solvent dehydrated bone allograft (SDBA) are both commonly used in alveolar ridge preservation. Previous studies have suggested SDBA may have advantages over FDBA due to a unique processing method. The primary objective of this study was to histologically compare the healing outcome between FDBA and SDBA when used for ridge preservation. Changes in morphometric ridge parameters were evaluated as a secondary outcome. METHODS: Forty-four patients requiring extraction and ridge preservation were randomized into two groups: FDBA (control group) or SDBA (test group)...
August 30, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30118537/effects-of-non-surgical-periodontal-therapy-on-clinical-and-immunological-profile-and-oral-colonization-of-candida-spp-in-hiv-infected-patients-with-chronic-periodontitis
#7
Átila V V Nobre, Tábata L S Pólvora, Letícia R M Silva, Vanessa de O Teles, Kelly Vargas Villafuerte, Raphael J G da Motta, João H P Fortes, Gilberto A Silva, Ana Laura P Ranieri, Leandro D de Macedo, Karen M L Morejon, Benedito A L da Fonseca, Camila Tirapelli, Maria C P Saraiva, Mário Taba, Alan G Lourenço, Ana Carolina F Motta
BACKGROUND: After the introduction of antiretroviral therapy (ART), human immunodeficiency virus (HIV) infection has become a chronic controllable disease. For this reason, chronic conditions related to both HIV infection and senescence, such as chronic periodontitis (CP) need to be studied. This study investigated the impact of non-surgical periodontal therapy (NSPT) on clinical and immunological features of CP, and on oral colonization by Candida spp. in HIV-infected and non-HIV-infected individuals...
August 17, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30118190/re-bone-heat-generated-using-conventional-implant-drills-versus-piezosurgery-unit-during-apical-cortical-plate-perforation-lajolo-c-valente-na-romandini-wg-petruzzi-m-verdugo-f-d-addona-a-j-periodontol-march-9-2018-https-doi-org-10-1002-jper-17-0502-epub-ahead
#8
LETTER
https://www.readbyqxmd.com/read/30102767/association-between-time-since-quitting-smoking-and-periodontitis-in-former-smokers-in-the-national-health-and-nutrition-examination-surveys-nhanes-2009-2012
#9
Shatha S Y ALHarthi, Zuhair Saleh Natto, Jennifer Bassett Midle, Robert Gyurko, Rory O'Neill, Bjorn Steffensen
BACKGROUND: The aims of this study were to analyze the periodontal conditions among non-smokers, former smokers and current smokers in the two National Health and Nutrition Examination Surveys (NHANES) acquired between 2009-2012, and determine the association between time since quitting smoking and periodontal status. METHODS: Smoking status and periodontal examination data from NHANES 2009-2010 and 2011-2012 were analyzed. Respondents included in the analysis were 18 years of age or older, had undergone a complete NHANES "Oral Health - Periodontal Exam" with all measurements recorded as required for the periodontal classification algorithm, and had complete data from the NHANES "Smoking - Cigarette Use questionnaire" Logistic regression was conducted with time since quitting as the exposure and presence of periodontitis as the outcome, and included adjustment for confounders...
August 13, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30102765/evaluation-of-oral-microbial-corrosion-on-the-surface-degradation-of-dental-implant-materials
#10
Danyal A Siddiqui, Lidia Guida, Sathyanarayanan Sridhar, Pilar Valderrama, Thomas G Wilson, Danieli C Rodrigues
BACKGROUND: Titanium (Ti) dominates as the material of choice for dental implant systems. Recently, titanium-zirconium alloy (TiZr) and zirconia (ZrO₂ ) have emerged as alternative materials due to higher mechanical strength and lower corrosion susceptibility. Oral pathogenic bacteria can colonize Ti surfaces, leading to surface degradation, which has yet to be investigated on TiZr and ZrO2 . The aim of this study was to compare in vitro oral bacterial adhesion and subsequent surface degradation on commercial Ti, TiZr, and ZrO2 implants...
August 13, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30088827/citric-acid-reduces-oral-biofilm-and-influences-the-electrochemical-behavior-of-titanium-an-in-situ-and-in-vitro-study
#11
João G S Souza, Jairo M Cordeiro, Carolina V Lima, Valentim A R Barão
BACKGROUND: Citric acid (CA) has been suggested as an effective antimicrobial agent against biofilms formed on titanium. However, the antimicrobial effect of CA in biofilms formed in the oral environment and its effects on the physical properties of titanium surface remain unknown. Therefore, this study evaluated the antimicrobial effect of CA on in situ biofilm, whether this treatment favors the bacteria recolonization and its effect on the electrochemical properties of titanium. METHODS: In the in situ test, volunteers wore a palatal appliance containing titanium discs...
August 8, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30086190/relationship-among-clinical-periodontal-microbiologic-parameters-and-lung-function-in-participants-with-chronic-obstructive-pulmonary-disease
#12
Lisi Tan, Xiaolin Tang, Chunling Pan, Hongyan Wang, Yaping Pan
BACKGROUND: The aim of this study was to evaluate the relationship among clinical periodontal, microbiologic parameters and lung function in participants with chronic obstructive pulmonary disease (COPD). METHODS: A total of 160 participants were recruited, including 80 participants with COPD (COPD group) and 80 participants without COPD (control group). All participants completed questionnaires and underwent clinical periodontal and lung function examinations. Subgingival plaques were obtained to determine the prevalence of selected oral and respiratory bacterial species...
August 7, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30070706/effect-of-sucrose-on-biofilm-formed-in-situ-on-titanium-material
#13
João G S Souza, Jaime A Cury, Antônio P Ricomini Filho, Magda Feres, Marcelo de Faveri, Valentim A R Barão
BACKGROUND: Because sucrose may change the composition of biofilms formed on dental surfaces, the aim of this study was to evaluate in situ the effect of this dietary sugar on biofilm formation on titanium surface. METHODS: In this blind, crossover, in situ study, 10 volunteers wore, in 3 phases of 7 days each, a palatal appliance containing titanium specimens. In each phase, the specimens were treated extraorally with 20% sucrose solution at a frequency of 4 or 8 times per day...
August 2, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30070705/innate-lymphoid-cells-are-present-in-gingivitis-and-periodontitis
#14
Elin Kindstedt, Cecilia Koskinen Holm, Py Palmqvist, Mats Sjöström, Kristina Lejon, Pernilla Lundberg
BACKGROUND: Innate lymphoid cells (ILCs) are the most recently identified leukocytes of the immune system and these cells are increasingly acknowledged to play important roles in host defence and tissue repair. ILCs are also contributors of inflammatory diseases such as asthma and colitis. We analyzed the presence and relative proportions of the different ILC subsets (ILC1, ILC2 and ILC3) in gingivitis and periodontitis. Further, we investigated if ILCs express receptor activator of nuclear factor kappa-B ligand (RANKL), a cytokine crucial for osteoclast differentiation and bone resorption...
August 2, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30066953/inhibition-of-angiotensin-ii-receptor-i-prevents-inflammation-and-bone-loss-in-periodontitis
#15
Jinle Li, Xun Xiao, Wei Wei, Handong Ding, Yuan Yue, Ye Tian, Neel R Nabar, Zhaohui Liu, Zheng Yang, Min Wang
BACKGROUND: Periodontal disease is characterized by alveolar bone destruction and degenerative lesions of the periodontal ligament (PDL); it is initiated by bacterial infection of the oral cavity, but the clinical effects are secondary to an aberrant host immune response. Primary hypertension (PH), which causes significant morbidity and mortality worldwide, has also been shown to be an inflammatory disease characterized by aberrant immune cell infiltration and activation. Clinical retrospective studies have shown a link between PH and periodontitis with PH exacerbating periodontitis and vice versa, but the pathophysiologic mechanisms responsible for this remain unknown...
August 1, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30059146/bone-regeneration-with-bovine-bone-impairs-orthodontic-tooth-movement-despite-proper-osseous-wound-healing-in-a-novel-mouse-model
#16
Yehuda Klein, Omer Fleissig, Ayala Stabholz, Stella Chaushu, David Polak
AIM: The aim of this study was to investigate the biological mechanisms underlying alveolar bone regeneration (ABR) and orthodontic tooth movement into bovine bone (BB) regenerated sites. METHODS: Two mouse models were established in C57BL/6 mice. The ABR model was based on osseous defects filled with BB. The orthodontic tooth movement-ABR model was used to move a molar into the regenerated site. Osseous morphometric analysis and tooth movement distance were evaluated with micro-CT...
July 30, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30044495/comparative-estimation-of-sulfiredoxin-levels-between-chronic-periodontitis-and-healthy-patients-a-case-control-study
#17
Asha Ramesh, Sheeja Varghese, Nadathur D Jayakumar, Sankari Malaiappan
BACKGROUND: Growing evidence suggests that oxidative stress forms a key component in the etiopathogenesis of periodontitis. Studies have shown potential antioxidants responsible for combating the pro-oxidants which stress the periodontium. But, peroxiredoxin-sulfiredoxin system is the least explored in periodontal disease. METHODS: A case-control study was conducted on 30 participants who fulfilled the inclusion criteria from the Department of Periodontics, Saveetha Dental College and Hospital, Chennai, India...
July 25, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30043979/evaluation-of-lozenges-containing-egg-yolk-antibody-against-porphyromonas-gingivalis-gingipains-as-an-adjunct-to-conventional-non-surgical-therapy-in-periodontitis-patients-a-randomized-controlled-clinical-trial
#18
Sa V Nguyen, Minh T H Nguyen, Binh C Tran, Minh T Q Ho, Kouji Umeda, Shofiqur Rahman
BACKGROUND: In a previous pilot study, one-time application of anti-Porphyromonas gingivalis gingipain egg yolk immunoglobulin (IgY) into scaling and root planing (SRP)-treated periodontal pockets showed profound improvement of clinical and bacteriological parameters in patients with chronic periodontitis. The present study aims to evaluate the efficacy of daily use of lozenges fortified with the antibody as an adjunct to non-surgical therapy in patients with periodontitis. METHODS: Sixty-four patients with periodontitis were divided randomly into a test and a placebo group...
July 25, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30043976/survival-rates-of-hybrid-rough-surface-implants-and-their-alveolar-bone-level-alterations
#19
Chun-Teh Lee, Duong Tran, Ming-Dih Jeng, Yi-Tung Shen
BACKGROUND: The design of hybrid surface implants takes advantage of characteristics of two different textures to improve clinical outcomes. To date, there are limited numbers of studies reporting the clinical results of hybrid surface implants. This study aimed to assess hybrid surface implants with two different rough textures in regard to survival, marginal bone level change, and biological complications. METHODS: Retrospective review of dental records was conducted for 161 patients who had 460 hybrid surface implants to analyze survival rate...
July 25, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/30043972/gingival-thickness-assessment-at-the-mandibular-incisors-with-four-methods-a-cross-sectional-study
#20
D Kloukos, G Koukos, I Doulis, A Sculean, A Stavropoulos, C Katsaros
BACKGROUND: This study was conducted to determine accuracy, precision and repeatability of four different methods for assessing gingival thickness METHODS: This cross-sectional study evaluated gingival thickness on 200 consecutively included orthodontic patients. Gingival thickness was assessed at both central mandibular incisors with: 1) transgingival probing with a standard periodontal probe, 2) transgingival probing with a stainless-steel acupuncture needle, 3) ultrasound, and 4) a color-coded periodontal probe...
July 25, 2018: Journal of Periodontology
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