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Peri-implant bone

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https://www.readbyqxmd.com/read/28213949/peri-implant-bone-remodeling-at-the-interface-of-three-different-implant-types-a-histomorphometric-study-in-mini-pigs
#1
Wenjuan Zhou, Sonja Kuderer, Zhonghao Liu, Christian Ulm, Xiaohui Rausch-Fan, Stefan Tangl
OBJECTIVES: The aim of this study was to perform a histomorphometric evaluation of the healing characteristics and jawbone remodeling processes in the peri-implant bone tissue of three commonly used implant surfaces, during the early weeks of osseointegration. MATERIAL AND METHODS: Dental implants with three different surfaces (anodically modified, hydroxyapatite (HA)-coated and machined) were inserted into the mandibular side-tooth region of twelve adult mini-pigs...
February 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28212453/bone-morphogenetic-protein-2-hybridized-with-nano-anchored-oligonucleotides-on-titanium-implants-enhances-osteogenic-differentiation-in-vivo
#2
Florian Böhrnsen, Jennifer Rublack, Nelia Aeckerle, Anne Foerster, Bernd Schwenzer, Judith Reichert, Dieter Scharnweber, Henning Schliephake
PURPOSE: Previous in vitro studies have shown that DNA oligonucleotides (ODN) can be successfully used as anchor strands for the binding and retarded release of biologically active recombinant human bone morphogenetic protein 2 (rhBMP-2). The aim of the present study was to test the hypothesis that rhBMP-2 bound to the surface of titanium implants through hybridization with nano-anchored ODN strands is biologically active and can enhance the induction of osteogenic markers in peri-implant bone in vivo...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212129/endoscopic-removal-of-a-dental-implant-from-maxillary-sinus
#3
Serkan Dundar, Turgut Karlidag, Erol Keles
The displacement of a dental implant into the maxillary sinus during surgery or after a period of use is a complication defined in the dental implant clinical practice. This complication arises primarily from inadequate bone height and peri-implant infection. Specifically, foreign objects in the maxillary sinus can cause sinusitis via impaired mucociliary flow and foreign body reactions, so they must be removed. Caldwell-Luc, transnasal, and intraoral endoscopic sinus surgeries have all been used to remove such foreign bodies and lesions from maxillary sinuses...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28208793/chitosan-recombinamer-layer-by-layer-coatings-for-multifunctional-implants
#4
Jeevan Prasaad Govindharajulu, Xi Chen, Yuping Li, Jose Carlos Rodriguez-Cabello, Mrinal Battacharya, Conrado Aparicio
The main clinical problems for dental implants are (1) formation of biofilm around the implant-a condition known as peri-implantitis and (2) inadequate bone formation around the implant-lack of osseointegration. Therefore, developing an implant to overcome these problems is of significant interest to the dental community. Chitosan has been reported to have good biocompatibility and anti-bacterial activity. An osseo-inductive recombinant elastin-like biopolymer (P-HAP), that contains a peptide derived from the protein statherin, has been reported to induce biomineralization and osteoblast differentiation...
February 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208056/oral-rehabilitation-of-a-patient-with-ectodermal-dysplasia-treated-with-fresh-frozen-bone-allografts-and-computer-guided-implant-placement-a-clinical-case-report
#5
Carlo Maiorana, Pier Paolo Poli, Carlo Poggio, Paola Barbieri, Mario Beretta
Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh-frozen bone (FFB) allografts recently have been proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent...
January 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28198975/short-term-sodium-alendronate-administration-improves-the-peri-implant-bone-quality-in-osteoporotic-animals
#6
Danila de Oliveira, Jaqueline Suemi Hassumi, Pedro Henrique da Silva Gomes-Ferreira, Tárik Ocon Braga Polo, Gabriel Ramalho Ferreira, Leonardo Perez Faverani, Roberta Okamoto
Objective: The aim of this study was to evaluate the bone repair process at the bone/implant interface of osteoporotic rats treated with sodium alendronate through the analysis of microtomography, real time polymerase chain reactions and immunohistochemistry (RUNX2 protein, bone sialoprotein (BSP), alkaline phosphatase, osteopontin and osteocalcin). Material and Methods: A total of 42 rats were used and divided in to the following experimental groups: CTL: control group (rats submitted to fictitious surgery and fed with a balanced diet), OST: osteoporosis group (rats submitted to a bilateral ovariectomy and fed with a low calcium diet) and ALE: alendronate group (rats submitted to a bilateral ovariectomy, fed with a low calcium diet and treated with sodium alendronate)...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28197990/a-chlorhexidine-releasing-epoxy-based-coating-on-titanium-implants-prevents-staphylococcus-aureus-experimental-biomaterial-associated-infection
#7
M Riool, A J Dirks, V Jaspers, L de Boer, T J Loontjens, C M van der Loos, S Florquin, I Apachitei, L N Rijk, H A Keul, S A Zaat
Prevention of biomaterial-associated infections (BAI) remains a challenging problem, in particular due to the increased risk of resistance development with the current antibiotic-based strategies. Metallic orthopaedic devices, such as non-cemented implants, are often inserted under high mechanical stress. These non-cemented implants cannot be protected by e.g. antibioticreleasing bone cement or other antimicrobial approaches, such as the use of bioactive glass. Therefore, in order to avoid abrasion during implantation procedures, we developed an antimicrobial coating with great mechanical stability for orthopaedic implants, to prevent Staphylococcus aureus BAI...
February 14, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28196278/carbon-fiber-vs-metal-framework-in-full-arch-immediate-loading-rehabilitations-of-the-maxilla-a-cohort-clinical-study
#8
Francesco Pera, Paolo Pesce, Francesco Solimano, Tiziano Tealdo, Paolo Pera, Maria Menini
BACKGROUND: Frameworks made of carbon fiber reinforced composites (CFRC) seem to be a viable alternative to traditional metal frameworks in implant prosthodontics. CFRC provide stiffness, rigidity and optimal biocompatibility. OBJECTIVE: The aim of the present prospective study was to compare carbon fiber frameworks versus metal frameworks used to rigidly splint implants in full-arch immediate loading rehabilitations. METHODS: 42 patients (test group) were rehabilitated with full-arch immediate loading rehabilitations of the upper jaw (total: 170 implants) following the Columbus Bridge Protocol with 4 to 6 implants with distal tilted implants...
February 14, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28196158/hybrid-implants-in-healthy-and-periodontally-compromised-patients-a-preliminary-clinical-and-radiographic-study
#9
Sergio Spinato, Fabio Bernardello, Paolo Sassatelli, Davide Zaffe
This preliminary clinical and radiographic study examined the survival of, the marginal bone loss (MBL) around, and the influence of prosthetic abutment height (AH) on MBL around hybrid implants placed in two groups of partially edentulous patients: healthy (HPs) and periodontally compromised (PCPs) patients. A total of 93 patients requiring single or multiunit implant restoration, in the mandible or maxilla, were treated while undergoing cement-retained prosthetic restoration. A total of 54 implants (35 in the maxilla and 19 in the mandible) were placed in 45 HPs, and 56 implants (31 in the maxilla and 25 in the mandible) in 48 PCPs...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28196155/subperiosteal-minimally-invasive-aesthetic-ridge-augmentation-technique-smart-a-new-standard-for-bone-reconstruction-of-the-jaws
#10
Ernesto A Lee
Traditional guided bone regeneration techniques include flap mobilization and placement of a bone graft, often with the use of space-maintaining devices and cell-occlusive membranes. This approach is associated with frequent complications that negatively affect the outcome of the augmentation and the peri-implant soft tissue esthetics. Although current tunneling techniques have focused on periodontal soft tissue applications, earlier publications described their use for horizontal augmentation of mandibular posterior edentulous ridges in full-denture patients...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28196152/human-histologic-evidence-of-reosseointegration-around-an-implant-affected-with-peri-implantitis-following-decontamination-with-sterile-saline-and-antiseptics-a-case-history-report
#11
Paul Fletcher, Daniel Deluiz, Eduardo Mb Tinoco, John L Ricci, Dennis P Tarnow, Justine Monnerat Tinoco
The treatment of peri-implant disease is one of the most controversial topics in implant dentistry. The multifactorial etiology and the myriad proposed techniques for managing the problem make successful decontamination of an implant surface affected by peri-implantitis one of the more unpredictable challenges dental practitioners have to face. This article presents the first known published case report demonstrating human histologic evidence of reosseointegration using a plastic curette for mechanical debridement and dilute sodium hypochlorite, hydrogen peroxide, and sterile saline for chemical detoxification...
February 14, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28186870/total-hip-arthroplasty-via-the-direct-anterior-approach-with-kerboull-type-acetabular-reinforcement-device-for-an-elderly-female-with-factor-xi-deficiency
#12
Kei Sano, Yasuhiro Homma, Tomonori Baba, Jun Ando, Mikio Matsumoto, Hideo Kobayashi, Takahito Yuasa, Kazuo Kaneko
We present a case of successful and uncomplicated total hip arthroplasty with an acetabular reinforcement device in an elderly patient with hip osteoarthritis already diagnosed with factor XI deficiency, which is a very rare bleeding disorder and at high risk of post-operative haemorrhage, and it poses a substantial challenge to surgeons as a consequence of the specific risks of infection and fixation failure. Moreover, bone fragility in elderly patient increases potential risk of adverse event. Fresh frozen plasma was used to supplement factor XI activity...
2017: SICOT-J
https://www.readbyqxmd.com/read/28185382/autogenous-bone-block-grafting-provides-facial-implant-tissue-stability-long-term
#13
Fernando Verdugo, Agurne Uribarri, Antonio D'Addona
BACKGROUND: Mucosal recession (MR) and bone loss can compromise anterior implant esthetics. PURPOSE: To evaluate tissue stability and clinical outcomes of anterior implants augmented with autogenous block transplants long-term. MATERIALS AND METHODS: This prospective cross-sectional clinical study analyzed facial tissue recession of anterior implants augmented with autogenous bone blocks and compared them to adjacent teeth in forty patients 52 months post-augmentation...
February 10, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28184162/synergistic-effect-of-nanotopography-and-bioactive-ions-on-peri-implant-bone-response
#14
Yingmin Su, Satoshi Komasa, Peiqi Li, Mariko Nishizaki, Luyuan Chen, Chisato Terada, Shigeki Yoshimine, Hiroshi Nishizaki, Joji Okazaki
Both bioactive ion chemistry and nanoscale surface modifications are beneficial for enhanced osseointegration of endosseous implants. In this study, a facile synthesis approach to the incorporation of bioactive Ca(2+) ions into the interlayers of nanoporous structures (Ca-nano) formed on a Ti6Al4V alloy surface was developed by sequential chemical and heat treatments. Samples with a machined surface and an Na(+) ion-incorporated nanoporous surface (Na-nano) fabricated by concentrated alkali and heat treatment were used in parallel for comparison...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28170452/implications-of-wear-at-the-titanium-zirconia-implant-abutment-interface-on-the-health-of-peri-implant-tissues
#15
Andrew Tawse-Smith, Sunyoung Ma, Warwick J Duncan, Andrew Gray, Malcolm R Reid, Alison M Rich
PURPOSE: To investigate the presence of metallic particles in the peri-implant mucosa around titanium dental implants after 5 years of loading using single-implant crowns with respect to clinical signs of peri-implant inflammation. MATERIALS AND METHODS: Sixteen participants from an ongoing, prospective, single-arm clinical trial who had received titanium dental implants restored with single maxillary crowns veneered to zirconia abutments were available for the study...
February 7, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28168901/graft-free-maxillary-sinus-floor-elevation-a-systematic-review-and-meta-analysis
#16
Deng-Hui Duan, Jia-Hui Fu, Wei Qi, Yi Du, Jie Pan, Hom-Lay Wang
AIM: This systematic review and meta-analysis aimed to investigate survival rates of dental implants (ISR) placed simultaneously with graft-free maxillary sinus floor elevation. Factors influencing the amount of vertical bone gain (VBG), protruded implant length in sinus at follow-up (PILf), and peri-implant marginal bone loss (MBL) were also evaluated. METHODS: An electronic and manual search for human clinical studies on simultaneous implant placement and graft-free maxillary sinus floor elevation using the lateral window or transcrestal approach, published in the English language from January 1976 to March 2016, was conducted...
February 7, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28163085/novel-technique-for-proximal-bone-anchoring-of-penile-prosthesis-after-radial-forearm-free-flap-neophallus
#17
Andrew J Cohen, Raj R Bhanvadia, Joseph J Pariser, David M Hatcher, Lawrence J Gottlieb, Gregory T Bales
BACKGROUND: Penile prosthesis insertion allows individuals with a neophallus to achieve erectile function. Lack of corporal bodies to accommodate cylinders makes anchoring of any prosthesis challenging. Anchoring the device to pubic bone is one strategy to achieve proximal stabilization of the prosthesis. PURPOSE: To describe outcomes of bone anchoring of penile implant in a neophallus with an accompanying video focusing on operative technique and salient tips for surgeons performing these procedures...
February 2, 2017: Urology
https://www.readbyqxmd.com/read/28162855/histopathological-and-scanning-electron-microscopy-findings-of-retrieved-porous-polyethylene-implants
#18
S-Y Choi, H-I Shin, T-Y Kwon, T-G Kwon
Porous polyethylene (PPE) implants are biocompatible alloplastic materials commonly used for facial augmentation. However, the effect of sub-periosteal PPE application on the surrounding tissues has not been analyzed clearly. This report documents the case of a 22-year-old woman who underwent peri-alar augmentation with PPE to improve midface retrusion. Although no infection or inflammation occurred at the surgical site, the patient requested removal of the PPE implant for aesthetic reasons alone at 1 year after the surgery...
February 2, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28156187/a-peri-implantitis-associated-with-a-pre-existing-pathology
#19
S E-L I M Oh
This case report presents a treatment of peri-implantitis associated with a pre-existing pathology. Peri-implantitis around the implant #19 was detected from pus discharge upon probing. Guided bone regeneration was performed to treat peri-implantitis with the administration of antibiotics. The histopathologic evaluation of soft tissue taken from the circumferential defect around the implant exhibited a cyst. The post-surgical CBCT and the follow-up radiograph confirmed the maturing bone graft and a reduced size of the defect around the implant...
February 3, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28154996/early-bone-formation-around-immediately-loaded-implants-with-nanostructured-calcium-incorporated-and-machined-surface-a-randomized-controlled-histologic-and-histomorphometric-study-in-the-human-posterior-maxilla
#20
Francesco Guido Mangano, Giovanna Iezzi, Jamil Awad Shibli, Jefferson Trabach Pires, Giuseppe Luongo, Adriano Piattelli, Carlo Mangano
OBJECTIVE: The aim of this randomized, controlled histologic/histomorphometric study was to compare the early bone formation around immediately loaded implants with nanostructured calcium-incorporated (NCI) and machined (MA) surface, placed in the human posterior maxilla. MATERIALS AND METHODS: Fifteen fully edentulous patients (six males; nine females; mean age 57.9 ± 6.7 years) were selected for this study. Each patient was installed with two temporary transmucosal implants, with different surfaces: one NCI (test) and one MA (control) implant...
February 2, 2017: Clinical Oral Investigations
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