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Periimplantitis

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https://www.readbyqxmd.com/read/28633489/effects-of-early-pregnancy-on-uterine-lymphocytes-and-endometrial-expression-of-immune-regulatory-molecules-in-dairy-heifers
#1
Sreelakshmi Vasudevan, Manasi M Kamat, Sadhat S Walusimbi, Joy L Pate, Troy L Ott
Natural killer (NK) cells are essential for establishment of human and rodent pregnancies. The function of these and other cytotoxic T cells (CTL) is controlled by stimulatory and inhibitory signaling. A role for cytotoxic cells during early pregnancy in cattle has not been described, but regulation of their function at the fetal-maternal interface is thought to be critical for conceptus survival. The hypothesis that the relative abundance of CTL and expression of inhibitory signaling molecules is increased by the conceptus during early pregnancy was tested...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28527549/efficacy-of-intravenous-acetaminophen-in-periimplantation-pain-of-cardiac-electronic-devices-a-randomized-double-blinded-study
#2
Reza Mollazadeh, Mohammad Reza Eftekhari, Masoud Eslami
PURPOSE: Although intravenous acetaminophen has been administered to reduce postoperative pain, it has not been used during cardiac implantable electronic devices (CIEDs) implantation. DESIGN: This was a randomized double-blinded interventional study. METHODS: Thirty-two patients who were referred for new CIED implantation during July 2012 until April 2013 randomly received placebo or 1 g of intravenous acetaminophen. All patients were treated with local anesthesia...
June 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28486355/air-abrasive-disinfection-of-implant-surfaces-in-a-simulated-model-of-periimplantitis
#3
David George Quintero, Robert Bonnie Taylor, Matthew Braden Miller, Keith Roshanali Merchant, Scott Anthony Pasieta
INTRODUCTION: This in vitro study aimed to evaluate the ability of air-powder abrasion to decontaminate dental implants. MATERIALS AND METHODS: Twenty-six implants were inoculated with a Streptococcus sanguinis biofilm media in a novel periimplantitis defect model. Six implants served as controls, and 20 implants were disinfected with either the Cavitron JET Plus or the AIR-FLOW PERIO air-powder abrasion units. Residual bacteria were cultured, and colony forming units (CFUs) were totaled at 24 hours...
June 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28482462/nanogrooves-and-keratin-nanofibers-on-titanium-surfaces-aimed-at-driving-gingival-fibroblasts-alignment-and-proliferation-without-increasing-bacterial-adhesion
#4
S Ferraris, F Truffa Giachet, M Miola, E Bertone, A Varesano, C Vineis, A Cochis, R Sorrentino, L Rimondini, S Spriano
Periimplantitis and epithelial downgrowth are nowadays the main conditions associated to transmucosal dental implants. Gingival fibroblasts can play an important role in periimplantitis because they are the promoters of the inflammatory process and eventual tissue homeostasis and destruction. Moreover, the related inflammatory state is commonly driven also to counteract bacteria implants colonization. In the present research, a new technology based on mechanically produced nanogrooves (0.1-0.2μm) and keratin nanofibers deposited by electrospinning has been proposed in order to obtain titanium surfaces able to drive gingival fibroblasts alignment and proliferation without increasing bacterial adhesion...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28424251/nuclear-shp2-directs-normal-embryo-implantation-via-facilitating-the-er%C3%AE-tyrosine-phosphorylation-by-the-src-kinase
#5
Hao Ran, Shuangbo Kong, Shuang Zhang, Jianghong Cheng, Chan Zhou, Bo He, Qiliang Xin, John P Lydon, Francesco J DeMayo, Gen-Sheng Feng, Guoliang Xia, Zhongxian Lu, Chao Wang, Haibin Wang
Estrogen and progesterone coupled with locally produced signaling molecules are essential for embryo implantation. However, the hierarchical landscape of the molecular pathways that governs this process remains largely unexplored. Here we show that the protein tyrosine phosphatase Shp2, a positive transducer of RTK signaling, is predominately localized in the nuclei in the periimplantation mouse uterus. Uterine-specific deletion of Shp2 exhibits reduced progesterone receptor (PR) expression and progesterone resistance, which derails normal uterine receptivity, leading to complete implantation failure in mice...
May 2, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28383598/genetic-relatedness-of-peri-implants-and-buccal-candida-albicans-isolates-determined-by-rapd-pcr
#6
Adriana M Bertone, Alcira C Rosa, Natalia Nastri, Hector D Santillán, Yamila Ariza, Cristina A Iovannitti, Virginia M Jewtuchowicz
Molecular techniques have been used in recent studies to identify a wide range of potential bacterial pathogens in periimplant pockets of the oral cavity. However, the prevalence and molecular epidemiology of yeasts and species distribution related to periimplantitis are as yet unknown. The aim of this study was to determine the prevalence and distribution of yeasts in periimplant biofilm and to study genetic relatedness of Candida albicans. Yeasts recovered from periimplant biofilm samples (n=89) and buccal samples (n=120) were studied in 40 immunocompetent nonsmoking patients who visited the dental clinic of the Asociación Implantodontológica Argentina, Buenos Aires, Argentina, and had received oral rehabilitation with implants for more than five years...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28359872/microbial-colonization-at-the-implant-abutment-interface-and-its-possible-influence-on-periimplantitis-a-systematic-review-and-meta-analysis
#7
REVIEW
Marco Tallarico, Luigi Canullo, Martina Caneva, Mutlu Özcan
PURPOSE: The aim of this systematic review and meta-analysis was to evaluate the microbial colonization at the implant-abutment interfaces (IAI) on bone-level implants and to identify possible association with peri-implant conditions. STUDY SELECTION: The focus question aimed to answer whether two-piece osseointegrated implants, in function for at least 1 year, in human, relate to higher bacterial count and the onset of periimplantitis, compared to healthy peri-implant conditions...
March 27, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28343672/effect-of-titanium-and-zirconia-dental-implant-abutments-on-a-cultivable-polymicrobial-saliva-community
#8
Erica D de Avila, Carlos Eduardo Vergani, Francisco A Mollo Junior, Miguel Jafelicci Junior, Wenyuan Shi, Renate Lux
STATEMENT OF PROBLEM: Periimplantitis is considered the most important biological complication responsible for late implant failure. The physical chemical properties intrinsic to each material can affect the first step to biofilm development and is an important precursor to the adaptive behavior of pathogenic bacteria species. PURPOSE: The purpose of this in vitro study was to evaluate the effect of 2 commercially available implant abutment materials on the adhesion phase and biofilm formation...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27965635/photoinactivation-using-visible-light-plus-water-filtered-infrared-a-vis-wira-and-chlorine-e6-ce6-eradicates-planktonic-periodontal-pathogens-and-subgingival-biofilms
#9
Ali Al-Ahmad, Aleksander Walankiewicz, Elmar Hellwig, Marie Follo, Christian Tennert, Annette Wittmer, Lamprini Karygianni
Alternative treatment methods for pathogens and microbial biofilms are required due to the widespread rise in antibiotic resistance. Antimicrobial photodynamic therapy (aPDT) has recently gained attention as a novel method to eradicate pathogens. The aim of this study was to evaluate the antimicrobial effects of a novel aPDT method using visible light (vis) and water infiltrated infrared A (wIRA) in combination with chlorine e6 (Ce6) against different periodontal pathogens in planktonic form and within in situ subgingival oral biofilms...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27940919/massive-dysregulation-of-genes-involved-in-cell-signaling-and-placental-development-in-cloned-cattle-conceptus-and-maternal-endometrium
#10
Fernando H Biase, Chanaka Rabel, Michel Guillomot, Isabelle Hue, Kalista Andropolis, Colleen A Olmstead, Rosane Oliveira, Richard Wallace, Daniel Le Bourhis, Christophe Richard, Evelyne Campion, Aurélie Chaulot-Talmon, Corinne Giraud-Delville, Géraldine Taghouti, Hélène Jammes, Jean-Paul Renard, Olivier Sandra, Harris A Lewin
A major unresolved issue in the cloning of mammals by somatic cell nuclear transfer (SCNT) is the mechanism by which the process fails after embryos are transferred to the uterus of recipients before or during the implantation window. We investigated this problem by using RNA sequencing (RNA-seq) to compare the transcriptomes in cattle conceptuses produced by SCNT and artificial insemination (AI) at day (d) 18 (preimplantation) and d 34 (postimplantation) of gestation. In addition, endometrium was profiled to identify the communication pathways that might be affected by the presence of a cloned conceptus, ultimately leading to mortality before or during the implantation window...
December 20, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27847399/complications-of-zygomatic-implants-our-clinical-experience-with-4-cases
#11
Fotios Tzerbos, Fotios Bountaniotis, Nadia Theologie-Lygidakis, Dimitrios Fakitsas, Ioannis Fakitsas
Zygomatic implants have been used for rehabilitation of the edentulous atrophic maxilla as an alternative to bone grafting for almost two decades resulting in satisfactory clinical outcomes. However, the patients with edentulous atrophic maxilla treated using this technique may present serious complications that could put the prosthetic restoration at risk. Four cases are reported in this paper, one case with a cutaneous fistula in the left zygomatic-orbital area caused by aseptic necrosis at the apical part of the implant, which was treated with the surgical removal of this part, a second case with loss of the right zygomatic implant due to failure of osseointegration and two cases of periimplantitis that resulted in partial and complete removal of the implant, respectively...
September 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27765397/compatible-cad-cam-titanium-abutments-for-posterior-single-implant-tooth-replacement-a-retrospective-case-series
#12
Kuang-Wei Hsu, Yu-Fu Shen, Pein-Chi Wei
STATEMENT OF PROBLEM: In addition to the original abutments provided by implant companies, compatible computer-aided design and computer-aided manufacturing (CAD-CAM) abutments are also available from different manufacturers. However, the combination of abutments and implant systems from different manufacturers may lead to mechanical problems between components. Little has been reported on the clinical performance of this treatment option. PURPOSE: The purpose of this retrospective case series was to evaluate the outcome of compatible CAD-CAM titanium abutments (TiAs) for posterior single-implant tooth replacement (PSITR) up to 6 years after insertion...
October 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27695614/expression-profile-of-developmentally-important-genes-in-preand-peri-implantation-goat-embryos-produced-in-vitro
#13
Pouria HosseinNia, Mehdi Hajian, Mojtaba Tahmoorespur, Sayyed Morteza Hosseini, Somayyeh Ostadhosseini, Mohammad Reza Nasiri, Mohammad Hossein Nasr-Esfahani
BACKGROUND: Little is understood about the regulation of gene expression during early goat embryo development. This study investigated the expression profile of 19 genes, known to be critical for early embryo development in mouse and human, at five different stages of goat in vitro embryo development (oocyte, 8-16 cell, morula, day-7 blastocyst, and day 14 blastocyst). MATERIALS AND METHODS: In this experimental study, stage-specific profiling using real time-quantitative polymerase chain reaction (RT-qPCR) revealed robust and dynamic patterns of stage-specific gene activity that fall into four major clusters depending on their respective mRNA profiles...
October 2016: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/27598426/long-term-radiographic-and-clinical-outcomes-of-regenerative-approach-for-treating-peri-implantitis-a-systematic-review-and-meta-analysis
#14
Vahid Khoshkam, Fernando Suárez-López Del Amo, Alberto Monje, Guo-Hao Lin, Hsun-Liang Chan, Hom-Lay Wang
PURPOSE: The purpose of this systematic review was to evaluate long-term outcomes of regenerative procedures for treating peri-implantitis. MATERIALS AND METHODS: Electronic searches of five databases and hand searches of journals were performed to identify human trials that had treated more than 10 periimplantitis lesions using a regenerative approach with a follow-up period of at least 36 months. To meet the inclusion criteria, studies had to report at least one of the following parameters: radiographic bone fill (RBF), probing depth (PD) reduction, clinical attachment level gain, bleeding on probing reduction, and mucosal level gain...
November 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27579555/apical-retrograde-periimplantitis-implant-periapical-lesion-etiology-risk-factors-and-treatment-options-a-systematic-review
#15
REVIEW
Ausra Ramanauskaite, Gintaras Juodzbalys, Tolga F Tözüm
OBJECTIVES: To review the literature on retrograde periimplantitis symptoms, risk factors, and treatment methods and to propose a decision-making tree of retrograde periimplantitis management. MATERIALS AND METHODS: An electronic literature search was conducted on the MEDLINE and EMBASE databases for articles published between 1990 and 2015. Clinical human studies in the English language were included. RESULTS: The search resulted in 44 case reports published by 27 authors...
October 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27548396/emerging-issues-associated-with-peri-implant-disease
#16
Paul S Rosen, Stuart J Froum
The biologic complication of peri-implantitis threatens the survival of dental implants that have successfully integrated and are in function. A list of seven risk factors associated with this disease was generated in 2006 at the Sixth European Workshop on Periodontology. These factors were based on the prevailing literature. Since then, modifications to this list have been considered whereby some of the original items suggested to be associated with periimplantitis would be deleted, while, in light of evidence-based information, newer, emerging risks may be included...
July 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27548110/effectiveness-of-mechanical-debridement-combined-with-adjunctive-therapies-for-nonsurgical-treatment-of-periimplantitis-a-systematic-review
#17
REVIEW
Juliano Milanezi de Almeida, Henrique Rinaldi Matheus, David Jonathan Rodrigues Gusman, Paula Lazilha Faleiros, Nathália Januário de Araújo, Vivian Cristina Noronha Novaes
OBJECTIVE: This study aimed to perform a systematic review of the effectiveness of nonsurgical treatment associated with different adjuvant therapies on periimplantitis. MATERIALS AND METHODS: Different individuals, following a research process, performed a network research of controlled and randomized controlled clinical trials on PubMed, Embase/MEDLINE, with 20 years' time constraint and the last search in January 2016. RESULTS: From 108 articles found by the first search, they analyzed 10 full texts, and in none did they find a standard control group...
February 2017: Implant Dentistry
https://www.readbyqxmd.com/read/27540842/assessment-of-intraobserver-and-interobserver-agreement-of-a-new-classification-system-for-retrograde-periimplantitis
#18
Rucha Shah, Raison Thomas, Tarun Kumar, Dhoom Singh Mehta
BACKGROUND: Retrograde periimplantitis (RPI) is the inflammatory disease that affects the apical part of an osseointegrated implant while the coronal portion of the implant sustains a normal bone-to-implant interface. The aim of the current study was to assess the intraexaminer and interexaminer reliability of a proposed new classification system for RPI. MATERIALS AND METHODS: After thorough electronic literature search, 56 intraoral periapical radiographs (IOPA) of implants with RPI were collected and were classified by 2 independent reviewers as per the new classification system into one of the 3-mild, moderate, and advanced-classes based on the amount of bone loss from the apex of the implant to the most coronal part as a percentage of the total implant length...
December 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27504533/periimplantitis-treatment-long-term-comparison-of-laser-decontamination-and-implantoplasty-surgery
#19
COMPARATIVE STUDY
Bernhard Pommer, Robert Haas, Georg Mailath-Pokorny, Rudolf Fürhauser, Georg Watzek, Dieter Busenlechner, Michael Müller-Kern, Claudia Kloodt
PURPOSE: Periimplantitis is the most frequent cause of late implant failure; however, little is known about the long-term success of periimplantitis treatment and the effectiveness of various therapeutic interventions. MATERIALS AND METHODS: A total of 142 patients were referred to the Academy for Oral Implantology in Vienna for the treatment of recurrent periimplantitis around single-tooth implants. Of them, 72 patients (51%) were treated by laser decontamination, 47 patients (33%) by implantoplasty surgery, and 23 patients (16%) by a combination of both approaches...
October 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27447145/cell-attachment-following-instrumentation-with-titanium-and-plastic-instruments-diode-laser-and-titanium-brush-on-titanium-titanium-zirconium-and-zirconia-surfaces
#20
Melissa S Lang, D Roselyn Cerutis, Takanari Miyamoto, Martha E Nunn
PURPOSE: The aim of this study was to evaluate the surface characteristics and gingival fibroblast adhesion of disks composed of implant and abutment materials following brief and repeated instrumentation with instruments commonly used in procedures for implant maintenance, stage-two implant surgery, and periimplantitis treatment. MATERIALS AND METHODS: One hundred twenty disks (40 titanium, 40 titaniumzirconium, 40 zirconia) were grouped into treatment categories of instrumentation by plastic curette, titanium curette, diode microlaser, rotary titanium brush, and no treatment...
July 2016: International Journal of Oral & Maxillofacial Implants
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