Context: Alveolar bone resorption poses a significant challenge in rehabilitating edentulous patients. Ridge augmentation materials can stimulate bone growth in deficient areas.
Aim: To evaluate the biocompatibility and osteoconductivity of maxibloc bone grafts in rabbits.
Materials And Methods: Maxibloc was packed into bony voids created surgically in the mandible and femur of rabbits, which were sacrificed at the fourth, eighth, and twelfth weeks. Radiography and histopathology evaluations assessed the osteoconductivity; hematology and toxicology evaluations assessed the biocompatibility of maxibloc.
Results: Radiography revealed bone formation and homogenization without osteolysis. Histopathology revealed new bone formation with osteoblasts, fibrous and collagen tissue, cartilage formation, and no foreign body reaction or inflammation. Hematology revealed stable hemoglobin concentration, white blood cell count, eosinophil count, and absence of leucocytosis. Toxicology revealed elevated mortality rates at higher doses, whereas lower doses were safe. Animals exhibited no signs of systemic toxicity or behavioral changes.
Conclusions: Maxibloc has demonstrated biocompatibility and osteoconductivity, presenting as a promising alloplastic bone graft.
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http://dx.doi.org/10.4103/jpbs.jpbs_505_24 | DOI Listing |
J Pharm Bioallied Sci
December 2024
Dr. Nazia's Dental Care, CSI Ascension Square, Logos Juction, Kottayam, Kerala, India.
Context: Alveolar bone resorption poses a significant challenge in rehabilitating edentulous patients. Ridge augmentation materials can stimulate bone growth in deficient areas.
Aim: To evaluate the biocompatibility and osteoconductivity of maxibloc bone grafts in rabbits.
Biomater Adv
February 2025
Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, 50603 Kuala Lumpur, Malaysia. Electronic address:
Calcium phosphate cements (CPCs) are renowned for their biocompatibility and osteoconductivity, making them ideal for bone tissue engineering. However, their brittleness and low tensile strength limit their use in load-bearing applications. Bacterial cellulose (BC) has emerged as a promising reinforcement material due to its high tensile strength, biocompatibility, and biodegradability.
View Article and Find Full Text PDFStem Cell Res Ther
March 2025
Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China.
Background: Tumors and injuries often lead to large mandibular defects. Accelerating the osteogenesis of large bone defect areas is a major concern in current research. In this study, dental pulp mesenchymal stem cells (DPSCs) were used as seed cells, and the local pulsatile parathyroid hormone (PTH) delivery system was used as an osteogenic-inducing active ingredient to act on DPSCs and osteoblasts, which were applied to the jaw defect area to evaluate its therapeutic effect on bone regeneration.
View Article and Find Full Text PDFJ Periodontal Implant Sci
December 2024
Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
Purpose: This study aimed to analyze the bone regeneration and biosorption patterns of different bone substitutes in a rabbit skull defect model.
Methods: Four circular 8 mm-defects were created in the cranium of 12 New Zealand white rabbits, each weighing approximately 3 kg. Each defect was randomly assigned to one of 4 treatment groups: cortical deproteinized porcine bone mineral (DPBM), cancellous DPBM, biphasic calcium phosphate (BCP) with a 6:4 ratio of hydroxyapatite (HA) to β-tricalcium phosphate (β-TCP) (TCP4), and BCP with a 2:8 ratio of HA to β-TCP (TCP8).
J Mater Sci Mater Med
March 2025
Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China.
Tantalum (Ta) metal has emerged as a prominent material within the realm of bone tissue engineering, owing to its favorable biocompatibility, commendable mechanical attributes, and notable biological properties such as osteoconductivity, osteoinductivity, and angiogenic potential. However, as clinical applications have expanded, Ta implants have unveiled a spectrum of limitations. Consequently, porous tantalum (PTa) has garnered escalating interest, attributable to its unique microstructural attributes, tunable mechanical characteristics, and inherent biocompatibility.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!