PubMed Journals Articles About "Polycaprolactone / Tricalcium Phosphate (PCL/TCP) V Titanium Orbital Implant : Randomised Trial" RSS

21:46 EST 23rd January 2019 | BioPortfolio

Polycaprolactone / Tricalcium Phosphate (PCL/TCP) V Titanium Orbital Implant : Randomised Trial PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Polycaprolactone / Tricalcium Phosphate (PCL/TCP) V Titanium Orbital Implant : Randomised Trial articles that have been published worldwide.

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Showing "Polycaprolactone Tricalcium Phosphate Titanium Orbital Implant Randomised Trial" PubMed Articles 1–25 of 7,900+

Orbital Floor and Rim Reconstruction With a Titanium Orbital Implant and Acellular Dermis.

Reconstruction of the orbital rim and floor following tumor excision is traditionally performed with bone grafts, vascularized grafts, or free flaps. The authors describe a case of an osteosarcoma of the maxillary sinus and a second case of an ossifying fibroma of the orbital floor, both of which required reconstruction of the orbital floor and rim. In both of these cases, reconstruction of the orbital floor and rim was performed with a titanium implant whose anterior portion was bent inferiorly to recreate...

Histopathological Evaluation of Polycaprolactone Nanocomposite Compared with Tricalcium Phosphate in Bone Healing.

In recent years, the use of bone scaffolds as bone tissue substitutes, especially the use of such as hydroxyapatite and tricalcium phosphate, has been very popular. Today, the use of modern engineering techniques and advances in nanotechnology have expanded the use of nanomaterials as bone scaffolds for bone tissue applications.

Atraumatic Delayed Orbital Hematoma Sixteen Years After Orbital Floor Fracture Repair With Porous Polyethylene Implant.

Porous alloplastic materials such as titanium mesh and porous polyethylene allow for the ingrowth of fibrovascular tissues into the implant; stabilizing the implant and reducing the risk of extrusion and extrusion-related complications (such as hematoma formation). The literature contains 2 specific reports of delayed atraumatic orbital hematomas occurring 8 months and 3 years after orbital floor reconstruction with porous polyethylene implants. In this study, an atraumatic orbital hematoma occurring 16 yea...

Patient-specific titanium reinforced calcium phosphate implant for the repair and healing of complex cranial defects.

Reconstruction of complex cranial defects is challenging and associated with a high complication rate. The development of a patient specific, titanium reinforced, calcium phosphate based (CaP-Ti) implant with bone regenerative properties has previously been described in two case studies with the hypothesis that the implant may improve clinical outcome.

Finite element analysis of the human orbit. behavior of titanium mesh for orbital floor reconstruction in case of trauma recurrence.

The Authors' main purpose was to simulate the behavior of a titanium mesh implant (TMI) used to reconstruct the orbital floor under the stress of a blunt trauma.

Unfocused shockwaves for osteoinduction in bone substitutes in rat cortical bone defects.

Bone substitutes are frequently used in clinical practice but often exhibit limited osteoinductivity. We hypothesized that unfocused shockwaves enhance the osteoinductivity of bone substitutes and improve osteointegration and angiogenesis. Three different bone substitutes, namely porous tricalcium phosphate, porous hydroxyapatite and porous titanium alloy, were implanted in a critical size (i.e. 6-mm) femoral defect in rats. The femora were treated twice with 1500 shockwaves at 2 and 4 weeks after surgery a...

Titanium mesh implant exposure due to pressure gradient fluctuation.

Titanium mesh implants are used for various purposes in craniotomy. While delayed implant exposure and thinning of the overlying skin are well known complications, the mechanism has never been elucidated. Here, we review our cases and propose a mechanism for titanium mesh implant exposure.

Titanium particles generated during ultrasonic scaling of implants.

There is growing concern that titanium particles may play a role in peri-implant breakdown. Ultrasonic scalers are routinely used in the debridement of peri-implant lesions. This in vitro study is designed to evaluate if titanium particles are produced when an ultrasonic scaler is used on an implant.

3D-printed polycaprolactone scaffold mixed with β-tricalcium phosphate as a bone regenerative material in rabbit calvarial defects.

Defect-specific bone regeneration using 3-dimensional (3D) printing of block bone has been developed. Polycaprolactone (PCL) is biocompatible polymer that can be used as 3D scaffold. The aim of this study is to assess the biocompatibility and osteogenic efficacy of 3D printed PCL scaffold and to evaluate the effectiveness of β-tricalcium phosphate (β-TCP) addition in PCL scaffold. In this work, four circular defects (diameter: 8 mm) in rabbit calvarium were randomly assigned to (1) negative control (contr...

Advanced inorganic nanocomposite for decontaminating titanium dental implants.

Oral hygiene and regular maintenance are crucial for preserving good peri-implant health. However, available prophylaxis products and toothpastes, which are optimized for cleaning teeth, tend to contaminate and abrade implant surfaces due to their organic components and silica microparticles, respectively. This study aims to develop an organic-free implant-paste based on two-dimensional nanocrystalline magnesium phosphate gel and hydrated silica nanoparticles (20-30% w/w) for cleaning oral biofilm on titani...

Guided bone regeneration using beta-tricalcium phosphate with and without fibronectin-An experimental study in rats.

This histomorphometric study compared bone regeneration potential of beta-tricalcium phosphate with fibronectin (β-TCP-Fn) in critical-sized calvarial defects (CSDs) in rats to assess whether fibronectin (Fn) improved new bone formation.

Association between metal hypersensitivity and implant failure in patients who underwent titanium cranioplasty.

OBJECTIVE Digitally designed titanium plates are commonly used for the reconstruction of craniofacial defects, although implant exposure (referred to as failure) is one of the major complications. Metal hypersensitivities have been suggested as possible causes of implant failure of orthopedic, intravascular, gynecological, and dental devices, yet there has been no consensus on the requirement for allergy screening before cranioplasty. METHODS In this study, the authors prospectively investigated the prevale...

Development of graphene oxide/calcium phosphate coating by pulse electrodeposition on anodized titanium: Biocorrosion and mechanical behavior.

In this work, graphene oxide (GO) reinforcement was used to improve the strength and fracture toughness of the calcium phosphate (CaP) coating applied on the anodized titanium using pulse electrodeposition. Based on the results, the CaP coating consisted of mixed phases of octa-calcium phosphate (OCP), dicalcium phosphate dehydrate (DCPD) and hydroxyapatite (HAp); however, compositing of this coating with GO caused deposition of the pure HAp phase. Moreover, the nanohardness and Young's modulus of the...

Tailoring the mechanical property and cell-biological response of β-tricalcium phosphate composite bioceramics by SrO-PO-NaO based additive.

β-tricalcium phosphate (β-TCP) bioceramic, which is a prevalent bone graft, is deficient in mechanical strength and mediating the biological functions. In the present study, β-tricalcium phosphate composite bioceramics (TCP/SPNs) were prepared by introducing SrO-PO-NaO based (SPN) sintering additive. With increasing mole ratio of SrO to PO, the SPN tended to crystallize. In the liquid-phase sintering process, β-TCP reacted with SPN, producing new compounds. The difference in characteristic of SPN additi...

Bone regeneration in rabbit calvarial critical-sized defects filled with composite in situ formed xenogenic dentin and biphasic tricalcium phosphate/hyroxyapatite mixture.

The purpose of this study was to evaluate bone healing in calvarial defects using two bone graft substitute materials; biphasic beta-tricalcium phosphate/hydroxyapatite in hydrogel (ß-TCP/HA) versus composite non-demineralized xenogenic dentin with ß-TCP/HA mixture. Full thickness critical-sized defects were created bilaterally in 10 New Zealand male rabbits. Seven defects were left empty, six filled with biphasic tricalcium phosphate putty, and seven were filled with composite non-demineralized xenogenic...

A Comparative Study with Biphasic Calcium Phosphate to Deproteinized Bovine Bone in Maxillary Sinus Augmentation: A Prospective Randomized and Controlled Clinical Trial.

The purpose of this study was to evaluate a new graft material, biphasic calcium phosphate, composed of 60% hydroxyapatite and 40% β-Tricalcium phosphate and deproteinized bovine bone mineral, which is established as a predictable graft material for maxillary sinus augmentation.

Laser microtextured titanium implant surfaces reduce in vitro and in situ oral biofilm formation.

Micro- or nano-topography can both provide antimicrobial properties and improve osseointegration of dental implant titanium surfaces. Laser treatment is one of the best surface microtexturing techniques. The aim of this study was to evaluate in vitro and in situ biofilm formation on a laser-treated titanium surface, comparing it with two conventional surfaces, machined and grit-blasted.

CD40 Enhances Sphingolipids in Orbital Fibroblasts: Potential Role of Sphingosine-1-Phosphate in Inflammatory T-Cell Migration in Graves' Orbitopathy.

Graves' orbitopathy (GO) is an autoimmune orbital disorder associated with Graves' disease caused by thyrotropin receptor autoantibodies. Orbital fibroblasts (OFs) and CD40 play a key role in disease pathogenesis. The bioactive lipid sphingosine-1-phosphate (S1P) has been implicated in promoting adipogenesis, fibrosis, and inflammation in OFs. We investigated the role of CD40 signaling in inducing S1P activity in orbital inflammation.

Hard and soft tissue cell behavior on PEEK, Zirconia, and Titanium implant materials.

The aim of this study was to characterize and compare the behavior of human osteoblasts and human gingival fibroblasts in contact with polyetheretherketone (PEEK), zirconia, and titanium implant surface materials.

Does early intervention improve outcomes in the physiotherapy management of lumbar radicular syndrome? Results of the POLAR pilot randomised controlled trial.

To investigate the feasibility of undertaking a definitive randomised controlled trial (RCT).

A Rare Cause for Recurrent Implant-Related Inflammation of Orbit: Dacryocystitis.

Ultra-thin porous polyethylene has been widely preferred in orbital blow out fracture repair for many years as a safe and stable material. Delayed complications related to the implant in orbital blow out fracture repair are very rare and usually begin as a periorbital inflammation. Infections and tissue reaction to the foreign body are regarded as main causes for implant-related inflammation of which symptoms may vary among the patients and may involve subacute and chronic eyelid swelling, skin redness, pai...

Macrophage polarization in aseptic bone resorption around dental implants induced by Ti particles in a murine model.

Titanium particles/ions detected in peri-implant tissues have been considered as a potential etiologic factor for crestal bone loss around oral implants. However, the definite impact of titanium wear particles on the health of surrounding structures remains undetermined. The purpose of this study was to investigate the effects of titanium particles-induced foreign body reaction on peri-implant bone level and the related mechanism by using clodronate liposomes to deplete macrophages.

Reconstruction of the Alveolar Bone Using Bone Augmentation With Selective Laser Melting Titanium Mesh Sheet: A Report of 2 Cases.

Bone augmentation is used to supplement bone defects during dental implant treatment. In this technique, the area filled with bone prosthetic material is covered with an artificial space-making device or titanium mesh sheet, which must be manually adapted to the bone defect during the procedure before being fixed in place. Selective laser melting (SLM) method can be used to preadapt the titanium mesh sheet based on preoperative CT data. This method enables shorter surgery times compared with conventional ti...

Absorbable Implant Foreign Body Reaction Masquerading as Orbital Cellulitis.

Poly-DL-lactide polymer implants absorb over a period of 6 to 12 months and have been used with increasing frequency for repair of orbital fractures. The authors describe the case of a 7-year-old boy who presented with orbital inflammation 10 months following repair of a white-eyed blowout fracture with a poly-DL-lactide implant. Rapid improvement in symptoms followed initiation of oral steroids, with excellent long-term result. Clinical presentation and treatment response implicated a foreign body inflamma...

Intramedullary nailing of forearm shaft fractures by biodegradable compared with titanium nails: Results of a prospective randomized trial in children with at least two years of follow-up.

There are disadvantages in Elastic Stable Intramedullary Nailing (ESIN) of forearm-shaft fractures, such as the need of implant removal. Biodegradable Intramedullary Nailing (BIN) is a new technique developed for these fractures. We hypothesized that there is no difference in rotational ROM between the patients treated by BIN vs. ESIN. A randomized, controlled clinical trial included patients, aged 5-15 years, requiring surgery for forearm-shaft fractures. Biodegradable polylactide-co-glycolide (PLGA) nails...

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