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Peri-implantitis

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https://www.readbyqxmd.com/read/28733984/implant-treatment-in-pharmacologically-immunosuppressed-liver-transplant-patients-a-prospective-controlled-study
#1
Víctor Paredes, Rosa María López-Pintor, Jesús Torres, Juan Carlos de Vicente, Mariano Sanz, Gonzalo Hernández
OBJECTIVES: The main objective of this prospective study was to evaluate the long-term outcome of implant therapy in liver transplant patients (LTP). The secondary goal was to assess several implant- and patient-dependent variables, such as peri-implantitis (PI), peri-implant mucositis (PIM), bone loss (BL), and immediate postoperative complications. MATERIAL AND METHODS: Two groups, including 16 pharmacologically immunosuppressed LTP and 16 matched controls, received 52 and 54 implants, respectively, between 1999 and 2008...
July 21, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28731198/gsk-3%C3%AE-inhibition-suppresses-instability-induced-osteolysis-by-a-dual-action-on-osteoblast-and-osteoclast-differentiation
#2
Mehdi Amirhosseini, Rune Vinther Madsen, K Jane Escott, Mathias Bostrom, F Patrick Ross, Anna Fahlgren
Currently, there are no medications available to treat aseptic loosening of orthopedic implants. Using osteoprotegerin fusion protein (OPG-Fc), we previously blocked instability-induced osteoclast differentiation and peri-prosthetic osteolysis. Wnt/β-catenin signaling, which regulates OPG secretion from osteoblasts, also modulates the bone tissue response to mechanical loading. We hypothesized that activating Wnt/β-catenin signaling by inhibiting glycogen synthase kinase-3β (GSK-3β) would reduce instability-induced bone loss through regulation of both osteoblast and osteoclast differentiation...
July 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28730548/orthopedic-infections-caused-by-obligatory-anaerobic-gram-negative-rods-report-of-two-cases
#3
Marta Kierzkowska, Piotr Pedzisz, Ireneusz Babiak, Jakub Janowicz, Mateusz Kulig, Anna Majewska, Anna Sawicka-Grzelak, Grazyna Mlynarczyk
Anaerobic bone and joint infections are uncommon, although the number of anaerobic infections is presumably underestimated because of difficulties with isolation and identification of obligate anaerobes. This study describes two cases of complicated Bacteroides fragilis peri-implant infection of the lumbar spine, infection of the hip and osteomyelitis. Bacteria were identified with the use of a mass spectrometer, VITEK MS system. Drug susceptibility was performed with the use of E-test. The EUCAST breakpoints were used for interpretation with B...
July 20, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28730234/associated-lesions-of-peri-implant-mucosa-in-immediate-versus-delayed-loading-of-dental-implants
#4
Alexandru Andrei Iliescu, Sabina Andrada Zurac, Vasile Nicolae, Mihaela Georgiana Iliescu, Paula Perlea
Currently, immediate loading of dental implants is very attractive as a standard protocol for prosthetic restorations in edentulous patients. The aim of this study is to find out the intimate peri-implant mucosa response depending on timing of implant loading, immediate or delayed. Fifty-one screw implants Alpha Bio (Alpha-Bio Tec, Israel) were inserted in 42 partially edentulous patients according to standardized surgical techniques. At six months of loading, samples of peri-implant mucosa were harvested from 27 immediate loaded, respectively 24 delayed loaded implants, and subjected to microscopic examination...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28726761/a-cell-adhesive-plasma-polymerized-allylamine-coating-reduces-the-in-vivo-inflammatory-response-induced-by-ti6al4v-modified-with-plasma-immersion-ion-implantation-of-copper
#5
Uwe Walschus, Andreas Hoene, Maciej Patrzyk, Silke Lucke, Birgit Finke, Martin Polak, Gerold Lukowski, Rainer Bader, Carmen Zietz, Andreas Podbielski, J Barbara Nebe, Michael Schlosser
Copper (Cu) could be suitable to create anti-infective implants based on Titanium (Ti), for example by incorporating Cu into the implant surface using plasma immersion ion implantation (Cu-PIII). The cytotoxicity of Cu might be circumvented by an additional cell-adhesive plasma polymerized allylamine film (PPAAm). Thus, this study aimed to examine in vivo local inflammatory reactions for Ti6Al4V implants treated with Cu-PIII (Ti-Cu), alone or with an additional PPAAm film (Ti-Cu-PPAAm), compared to untreated implants (Ti)...
July 20, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28721551/peri-implant-biomechanical-responses-to-standard-short-wide-and-double-mini-implants-replacing-missing-molar-supporting-hybrid-ceramic-or-full-metal-crowns-under-axial-and-off-axial-loading-an-in-vitro-study
#6
Lamiaa Said Elfadaly, Lamiaa Sayed Khairallah, Mona Atteya Al Agroudy
BACKGROUND: The aim of this study was to evaluate the biomechanical response of the peri-implant bone to standard, short-wide, and double mini implants replacing missing molar supporting either hybrid ceramic crowns (Lava Ultimate restorative) or full-metal crowns under two different loading conditions (axial and off-axial loading) using strain gauge analysis. METHODS: Three single-molar implant designs, (1) single, 3.8-mm (regular) diameter implant, (2) single, 5...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28718012/implant-decontamination-with-phosphoric-acid-during-surgical-peri-implantitis-treatment-a-rct
#7
Diederik F M Hentenaar, Yvonne C M De Waal, Hans Strooker, Henny J A Meijer, Arie-Jan Van Winkelhoff, Gerry M Raghoebar
BACKGROUND: Peri-implantitis is known as an infectious disease that affects the peri-implant soft and hard tissue. Today, scientific literature provides very little evidence for an effective intervention protocol for treatment of peri-implantitis. The aim of the present randomized controlled trial is to evaluate the microbiological and clinical effectiveness of phosphoric acid as a decontaminating agent of the implant surface during surgical peri-implantitis treatment. METHODS: Peri-implantitis lesions were treated with resective surgical treatment aimed at peri-implant granulation tissue removal, bone recontouring, and pocket elimination...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28715944/comparison-of-two-different-techniques-used-for-the-maintenance-ofperi-implant-soft-tissue-health-a-pilot-randomized-clinical-trial
#8
Logien Al Ghazal, Jeffery O'Sullivan, Noel Claffey, Ioannis Polyzois
OBJECTIVES: The aim of this pilot study was to compare the effectiveness of two different methods of debridement on maintaining and improving peri-implant soft tissue health over a period of 12 months. MATERIALS AND METHODS: Twenty adult patients (25 implants) were enrolled in a randomized, single-blinded, parallel group clinical trial. All implants included showed no signs of pathologic bone loss. Patients were scheduled to be reviewed every 3 months over a 12 months period...
July 17, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28715445/cytological-diagnostic-features-of-late-breast-implant-seromas-from-reactive-to-anaplastic-large-cell-lymphoma
#9
Arianna Di Napoli, Giuseppina Pepe, Enrico Giarnieri, Claudia Cippitelli, Adriana Bonifacino, Mauro Mattei, Maurizio Martelli, Carlo Falasca, Maria Christina Cox, Iolanda Santino, Maria Rosaria Giovagnoli
Late breast implant seroma may be the presentation of a breast implant-associated anaplastic large cell lymphoma (BI-ALCL), which claims for a prompt recognition. However, BI-ALCL diagnosis on fine-needle aspiration (FNA) might be challenging for pathologists lacking experience with peri-implant breast effusions. Sixty-seven late breast implant seromas collected by FNA from 50 patients were evaluated by Papanicolaou smear stain and immunocytochemistry on cell blocks. A diagnostic algorithm based on the cellular composition, cell morphology and percentage of CD30+ cells was developed...
2017: PloS One
https://www.readbyqxmd.com/read/28713730/application-of-orthodontic-immediate-force-on-dental-implants-histomorphologic-and-histomorphometric-assessment
#10
Mansour Rismanchian, Sayed Hamid Raji, Sayed Mohammad Razavi, Danesh Teimouri Rick, Amin Davoudi
AIMS: Application of force to implants is helpful, especially in orthodontic-implant therapies. The aim of this study was a histomorphologic and histomorphometric evaluation of peri-implant bone after immediate orthodontic and orthopedic forces comparing them with a control group. MATERIALS AND METHODS: Eighteen dental titanium implants were inserted in the premolar region of three dogs. Implants were divided into three groups: (1) group with immediate orthodontic force of 300 NC, (2) group with immediate orthopedic force of 600 NC, and (3) control group...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713118/preserving-the-bone-profile-in-anterior-maxilla-using-an-equine-cortical-bone-membrane-and-an-equine-enzyme-treated-bone-graft-a-case-report-with-5-year-follow-up
#11
Danilo A Di Stefano, Umberto Garagiola, Mirko A Bassi
AIM: This study aimed to report a well-succeeded use of equine enzyme-deantigenic cortical membrane and bone granules for guided bone regeneration (GBR) in the esthetic zone concomitant with implant placement. BACKGROUND: In the anterior maxilla, where patients typically have the highest expectations for implant-supported restorations, bone resorption in the wake of tooth loss often leads to a lack of soft tissue support and ultimately to unsatisfactory esthetic results...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28711338/in-vitro-cytocompatibility-of-dental-resin-monomers-on-osteoblast-like-cells
#12
Dominik Kraus, Markus Wolfgarten, Norbert Enkling, Ernst-Heinrich Helfgen, Matthias Frentzen, Rainer Probstmeier, Jochen Winter, Helmut Stark
OBJECTIVES: Dental resin-based materials are widely used in modern dentistry. Especially, resin cements enjoy great popularity and are utilized in many applications. Nevertheless, monomers could be released from the resinous matrix, thus interact with surrounding tissues, cause adverse biological reactions and may lead in cases of implant retained restorations to peri-implant bone destruction. Hence, we performed an in-vitro study to determine cytotoxicity of resin monomers on osteoblast-like cells...
July 12, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28710652/comparison-between-inflammation-related-markers-in-peri-implant-crevicular-fluid-and-clinical-parameters-during-osseointegration-in-edentulous-jaws
#13
Amália M Bielemann, Raissa M Marcello-Machado, Fábio Renato Manzolli Leite, Frederico Canato Martinho, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, Fernanda Faot
OBJECTIVES: The aim of this study is to improve the understanding of interleukin mechanisms during osseointegration to enhance the monitoring of implant failure and success. Clinical parameters, implant stability, and cytokine levels in peri-implant crevicular fluid (PICF) during early bone healing after implant placement were investigated. MATERIAL AND METHODS: Sixty narrow implants were placed in mandible anterior region of 30 edentulous patients (67.23 ± 7...
July 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28709835/the-antimicrobial-peptide-human-%C3%AE-defensin-1-potentiates-in-vitro-osteoclastogenesis-via-activation-of-the-p44-42-mitogen-activated-protein-kinases
#14
Anupong Makeudom, Chayarop Supanchart, Pattanin Montreekachon, Sakornrat Khongkhunthian, Thanapat Sastraruji, Julaporn Krisanaprakornkit, Suttichai Krisanaprakornkit
Previous studies have demonstrated increased expression and raised levels of human β-defensin (hBD)-1 in gingival tissue and crevicular fluid of patients with chronic periodontitis and peri-implantitis, oral bone-resorbing diseases caused by enhanced osteoclastogenesis. Therefore, we aimed to investigate the effect of hBD-1 on osteoclast formation and function and to elucidate the involved signaling pathway in vitro. Human peripheral blood mononuclear cells (PBMCs) were first incubated with various doses of hBD-1 and cell viability was assayed by MTT...
July 11, 2017: Peptides
https://www.readbyqxmd.com/read/28708924/bone-and-soft-tissue-response-in-bone-level-implants-restored-with-platform-switching-a-5-year-clinical-prospective-study
#15
Laura Lago, Luis da Silva, Francisco Gude, Benito Rilo
PURPOSE: The aim of this prospective study was to evaluate radiographic levels of peri-implant bone crest as well as soft tissue response, papilla height, and buccal mucosa recession, in bone-level implants restored with platform switching after 1-year and 5-year follow-ups. MATERIALS AND METHODS: This prospective study called for the placement of 59 implants to obtain a target of 90% power. To compensate for possible dropouts, the sample size was adjusted to 67 implants...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708919/retrospective-evaluation-of-the-influence-of-the-collar-surface-topography-on-peri-implant-bone-preservation
#16
Jose Alfredo Mendonça, Plinio Mendes Senna, Carlos Eduardo Francischone, Carlos Eduardo Francischone Junior, Neuza Maria de Souza Picorelli Assis, Bruno Salles Sotto-Maior
PURPOSE: To evaluate the influence of the collar surface topography on peri-implant marginal bone preservation. MATERIALS AND METHODS: A total of 156 patients who received at least one cylindrical implant of regular diameter with an external-hexagon platform in the posterior region of the maxilla or mandible were recalled to the office for a retrospective evaluation. Implantation sites and implant length information were recorded, and implants were divided according to the collar surface topography: machined (M) or rough (R) surface...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708917/vertical-osseodistraction-with-a-new-intraosseous-alveolar-distractor-prototype-for-dental-implant-rehabilitation-a-pilot-study-in-dogs
#17
Marco Esposito, Anna Trullenque-Eriksson, Carlos Navarro Vila, Miguel Peñarrocha, Abel García, Arturo Sánchez, Fernando Muñoz-Guzón, José Manuel Martínez Martín
PURPOSE: To evaluate in dogs a newly developed intraosseous alveolar distractor (Mozo-Grau Alveolar Distractor) for vertical bone augmentation to allow placement of dental implants. MATERIALS AND METHODS: Four dogs had their posterior teeth removed, and sockets were left to heal for 20 weeks. The right and left sides of the posterior mandibles were randomly allocated, according to a split-mouth design, to receive either two distractors, distracting a 32-mm-long bone segment, or two distractors supporting one bony segment 20 mm long and one 8 mm long...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708911/peri-implant-and-paracrestal-inflammatory-biomarkers-at-failing-versus-surviving-implant-sites-in-a-beagle-dog-study
#18
Javier Montero, Fernando Aragón, Leticia A Blanco, Yasmina Guadilla, Begona García-Cenador, Antonio López-Valverde
PURPOSE: This study sought to quantify three biochemical mediators of inflammation (tumor necrosis factor alpha [TNF-α], superoxide anion [SOA], and myeloperoxidase [MPO]) by analyzing crestal (peri-implants) and paracrestal gingival biopsy samples obtained from an experimental study on beagle dogs treated with implants inserted immediately into fresh sockets with circumferential defects. MATERIALS AND METHODS: In 10 beagle dogs, 4 roughened titanium implants (3...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708909/biomechanical-three-dimensional-finite-element-analysis-of-single-implant-supported-prostheses-in-the-anterior-maxilla-with-different-surgical-techniques-and-implant-types
#19
Fellippo Ramos Verri, Joel Ferreira Santiago, Daniel Augusto Almeida, Victor Eduardo de Souza Batista, Cleidiel Aparecido Araujo Lemos, Caroline Cantieri Mello, Eduardo Piza Pellizzer
PURPOSE: The aim of this study was to use three-dimensional finite element analysis to analyze the stress distribution transferred by single implant-supported prostheses placed in the anterior maxilla using different connections (external hexagon, internal hexagon, or Morse taper), inclinations of the load (0, 30, or 60 degrees), and surgical techniques for placement (monocortical/conventional, bicortical, or bicortical with nasal floor elevation). MATERIALS AND METHODS: Nine models representing a bone block of this region were simulated by computer-aided design software (InVesalius, Rhinoceros, SolidWorks)...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708906/effectiveness-of-periapical-radiography-versus-cone-beam-computed-tomography-with-different-kilovoltage-settings-in-the-detection-of-chemically-created-peri-implant-bone-defects-an-in-vitro-study
#20
Lucas Rodrigues Pinheiro, William C Scarfe, Marcelo Augusto de Oliveira Sales, Bruno Felipe Gaia, Arthur Rodriguez Gonzalez Cortes, Marcelo Gusmão Paraiso Cavalcanti
PURPOSE: To determine the effectiveness of cone beam computed tomography (CBCT) images obtained with different kilovoltage settings compared with intraoral periapical photostimulable storage phosphor (PSP) plate images in the detection of chemically created peri-implant defects utilizing a bovine rib bone model in vitro. MATERIALS AND METHODS: After placing 80 implants in bovine ribs, peri-implant circumferential bone defects of different sizes were created with 70% perchloric acid...
July 2017: International Journal of Oral & Maxillofacial Implants
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