PubMed Journals Articles About "Evaluation Bone Formation Using Autogenous Tooth Bone Graft" RSS

08:56 EDT 20th May 2019 | BioPortfolio

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Showing "Evaluation Bone Formation Using Autogenous Tooth Bone Graft" PubMed Articles 1–25 of 20,000+

Evaluation of New Bone Formation Using Autogenous Tooth Bone Graft Combined with Platelet-Rich Fibrin in Calvarial Defects.

The purpose of the present study was to evaluate the contributions of autogenous tooth bone graft (ATBG) combined with platelet-rich fibrin (PRF) on new bone formation and bone morphogenetic protein (BMP)-2 in rabbit calvarial defects. Twelve male New Zealand rabbits were used in this study. Three circular bone defects were prepared in each rabbit with a drill. These defects were divided into 3 groups: control, treated with ATBG, and treated with ATBG+PRF. The animals were sacrificed at 28 days. Samples wer...

Recombinant Human Bone Morphogenic Protein-2 Combined With Autogenous Bone Graft for Reconstruction of Alveolar Cleft.

Recombinant human bone morphogenic proteins (rhBMPs) have been introduced for reconstruction of alveolar defects. The volume of the bone formed at the cleft region may be related to rhBMP-2 dose. Greater side effects have been reported with increased doses of rhBMP-2. The aim of the present study was to assess the bone at the cleft area using low dose of rhBMP-2 combined with autogenous bone graft for reconstruction of the alveolar cleft. Patients with unilateral cleft lip and palate between the 11 to 14 ye...

Growth Dynamic of Allogeneic and Autogenous Bone Grafts in a Vertical Model.

Several techniques have been proposed for vertical bone regeneration, and many of them use bone autogenous and allogeneic grafts. The purpose of this study was to compare demineralised freeze-dried bone allografts (DFDBA), fresh-frozen (FF) allografts, autogenous bone grafts to find differences between volumetric and histological quantity of bone formation and vertical bone growth dynamic. A vertical tissue regeneration bone model was performed in rabbit calvarias under general anaesthesia. Four hollow cyli...

New Bone Formation Using an Extracted Tooth as a Biomaterial: A Case Report with Histologic Evidence.

This case report aims to demonstrate the regenerative potential of particles obtained from a crushed extracted tooth. Following tooth removal, the clean root was ground and the dentin and cementum granules were grafted into a fresh extraction socket for a ridge preservation procedure. After 24 weeks, a successful implant placement was allowed. Tissue healing was evaluated by histologic and radiologic analysis. The volume of the ridge was preserved. Histologically, a dentin-bone complex was reported. New bon...

Horizontal ridge augmentation with guided bone regeneration using particulate xenogenic bone substitutes with or without autogenous block grafts: A randomized controlled trial.

To evaluate dimensional bone alterations following horizontal ridge augmentation using guided bone regeneration (GBR) with or without autogenous block graft (ABG) for the rehabilitation of atrophic jaws with dental implants.

Collagen/β-TCP composite as a bone-graft substitute for posterior spinal fusion in rabbit model: a comparison study.

β-TCP bioceramic, as a kind of biocompatible and biodegradable artificial bone scaffolds, is increasingly used to supplement lamina autografts when performing instrumented or non-instrumented spinal fusion, clinically, although solid fusion is not always achieved. The addition of collagen to β-TCP appears to be a potential strategy to improve bone regeneration, thereby enhancing the rate of spinal fusion. This study aimed to compare the fusion in collagen/β-TCP composite, β-TCP and autologous bone in a ...

Clinical and patient-reported outcomes of implants placed in autogenous bone grafts and implants placed in native bone: a case-control study with a follow up of 5 to 16 years.

to compare the radiographic marginal bone levels of implants placed in sites previously augmented with autogenous bone grafts and implants placed in native bone. Secondary outcomes included: implant survival, periodontal/peri-implant parameters as well as short- and long-term patient-reported outcome measures.

Distraction subtalar arthrodesis for calcaneal malunion: comparison of local versus iliac bone graft

We hypothesized that there is no difference in the clinical and radiological outcomes using local bone graft iliac graft for subtalar distraction arthrodesis in patients with calcaneal malunion. In addition, using local bone graft negates the donor site morbidity.

A Randomized Controlled Trial Comparing rhBMP-2/ACS vs. Autograft for the Treatment of Tibia Fractures with Critical Size Defects.

Recombinant bone morphogenetic protein-2 (rhBMP-2) with allograft has been used as an alternative to autogenous iliac crest bone graft (ICBG) for tibia shaft fractures with bone defects. This study's purpose was to compare these techniques regarding to radiographic union, with the hypothesis of equivalence between treatment groups.

Clinical Outcome of Implants Placed in Staged Maxillary Sinus Augmentation Using Bovine Bone Mineral Mixed with Autogenous Bone at Three Different Ratios: A 5-Year Prospective Follow-up Study.

To evaluate the 5-year clinical outcomes for implants placed in a staged sinus floor elevation (SFE) procedure and to compare three patient groups with sinus grafts with three different ratios of bovine bone mineral (BBM) and autogenous bone (AB) mixture.

Role of Beta Tri-calcium Phosphate-based Composite Ceramic as Bone-Graft Expander in Masquelet's-Induced Membrane Technique.

Filling bone defect after debridement of infected nonunion is an orthopedic challenge. Since the volume of autologous bone graft available is limited, allograft, demineralized bone matrix, and calcium phosphate ceramic-based bone graft substitutes have come up as potential autograft expanders. This study was conducted to analyze the use of beta tri-calcium phosphate (B-TCP)-based composite ceramic as autologous bone-graft expander in the management of postinfective segmental gap nonunion of long bones manag...

Mesenchymal Stem Cells and Biologic Factors leading to Bone Formation.

Physiological bone formation and bone regeneration occurring during bone repair can be considered distinct but similar processes. Mesenchymal stem cells and associated biologic factors are crucial to both bone formation and bone regeneration.

Dynamic Evaluation of Orthodontically-Induced Tooth Movement, Root Resorption, and Alveolar Bone Remodeling in Rats by in Vivo Micro-Computed Tomography.

BACKGROUND The aim of this study was to dynamically evaluate tooth movement, root resorption, and remodeling of alveolar bone using different forces to cause tooth movement in rats. MATERIAL AND METHODS 12-week-old male Sprague-Dawley rats were selected. Nickel-titanium (Ni-Ti) coil springs (20 g, 50 g, and 100 g forces) were placed for mesial movement of the left first maxillary molar teeth. Tooth movement, root resorption, and microarchitectural parameters of the trabecular bone were evaluated by in vivo ...

Efficacy of stem cells on bone consolidation of distraction osteogenesis in animal models: a systematic review.

Distraction osteogenesis (DO) relies on the recruitment and proliferation of mesenchymal stem cells (MSC) to the target site, where they differentiate into osteoblasts to promote bone formation. Nevertheless, MSC recruitment appears to be slow and limits bone formation in DO defects. Thus, this systematic review aims to evaluate the ability of locally applied MSC to enhance bone formation in DO preclinical models. Databases were searched for quantitative pre-clinical controlled studies that evaluated the ef...

The Role of Implant-Tooth Distance on Marginal Bone Levels and Esthetics.

The peri-implant bone and mucosa architecture contribute to the health and esthetics of single-tooth dental implants. The implant-tooth distance (ITD) has been regarded as a key determinant of their outcomes. This study was conducted to determine the relationship between ITD and peri-implant bone, mucosa, and pink esthetic scores (PES) for anterior single-tooth implants.

99mTc-diphosphonates bone scintigraphy for vitality evaluation in cleft palate.

Cleft of the lip, palate and alveolus are congenital oro-maxillofacial malformation with an established treatment protocol. At present, there is great interest in the alveolar bone grafting procedures that involve the use of platelet-rich-plasma (PRP), to enhance bone formation and specifically to promote bone graft healing in head and neck tissues regeneration. The aim of this retrospective case report study was to assess the condition and viability of the standard bone grafting in association with PRP (pl...

Comparing "intra operative" tissue engineering strategies for the repair of craniofacial bone defects.

In craniofacial reconstruction, the gold standard procedure for bone regeneration is the autologous bone graft (BG). However, this procedure requiring bone harvesting is a source of morbidity. Bone substitutes, such as biphasic-calcium-phosphate (BCP), represent an interesting alternative but are not sufficient for bone healing in hypoplastic conditions. In such conditions, osteoprogenitors are essential to provide osteoinduction. Previous studies have shown that BCP associated with total bone marrow (TBM) ...

Bone Marrow Aspirate in Cystic Maxillofacial Bony Defects.

Autogenous or alloplastic bone grafts are routinely applied for reconstruction of cystic bone defects. Addition of mesenchymal bone marrow stem cell in osteoconductive alloplastic bone makes it osteoinductive and osteogenic. The purpose of this study was to evaluate the role of bone marrow aspirate in regenerating new bone with hydroxyapatite collagen scaffold in patients with large cystic maxillofacial defects. This prospective randomized study had random allocation of 15 patients with large cystic maxillo...

Histomorphometric Analysis of Maxillary Sinus Grafts: A Pilot Study.

This pilot study evaluated and compared the degree of new bone formation following maxillary sinus graft (MSG) using three different bone graft materials.

Comparison between two bone substitutes for alveolar ridge preservation after tooth extraction: Cone beam computed tomography results of a non-inferiority randomized controlled trial.

To test the non-inferiority of demineralized bovine bone mineral (DBBM) compared to DBBM with 10% collagen (DBBM-C) for maintenance of bone volume after tooth extraction in the anterior maxilla.

Wound dehiscences following pre-implant bone augmentation with autogenous iliac crest bone grafts: A retrospective cohort study.

To evaluate possible risk factors associated with wound dehiscences following pre-implant alveolar bone augmentation with autologous anterior iliac crest bone grafts covered with resorbable collagen membranes or human demineralised bone laminae.

Use of Calcium Phosphate Cement for Repairing Bone Defects: Histomorphometric and Immunohistochemical Analyses.

This study aimed to assess the repair of surgically created bone defects filled with blood clot, autogenous bone, and calcium phosphate cement, by histomorphometric and immunohistochemical analyses. Ten adult male rabbits were used. Three bone defects were prepared with an 8-mm diameter trephine bur in the parietal region of each animal and filled with blood clot (Group BC), autogenous bone (Group AB), and calcium phosphate bone cement (Group CPC). The animals were euthanized at 40 and 90 postoperative days...

Liraglutide increases bone formation and inhibits bone resorption in rats with glucocorticoid-induced osteoporosis.

This study aimed to investigate the effects of liraglutide on bone metabolism markers in rat models with glucocorticoid-induced osteoporosis (GIOP), including the effects on bone mass, bone tissue microstructure, bone biomechanics, and bone turnover markers.

Cone beam computed tomography evaluation of staged lateral ridge augmentation using platelet rich fibrin or resorbable collagen membranes in a randomized controlled clinical trial.

To evaluate the volumetric changes following lateral alveolar ridge augmentation using autogenous bone graft covered by either a platelet rich fibrin membrane (test group) or an inorganic bovine bone substitute and a resorbable collagen barrier membrane (control group).

Bone Marrow Cells Inhibit BMP-2-Induced Osteoblast Activity in the Marrow Environment.

Bone morphogenetic protein 2 (BMP-2) is widely known as a potent growth factor that promotes bone formation. However, an increasing number of studies have demonstrated side effects of BMP-2 therapy. A deeper understanding of the effect of BMP-2 on cells other than those involved directly in bone remodeling is of fundamental importance to promote a more effective delivery of BMP-2 to patients. In this study, we aimed to investigate the effect of BMP-2 in the marrow environment. First, BMP-2 adsorbed onto tit...

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