Objective: This study aimed to evaluate bone regeneration capacity of FDBX granules compared to composite DBBM/DFDBX granules for filling of bone defect in rabbit mandible.
Material And Methods: Critical size defects were created in 45 rabbits' mandible. The defect in the control group is left untreated, while in other groups the defects were filled with FDBX granules and composite DBBM/DFDBX granules, respectively. Specimens were collected at 2, 4, and 8 weeks for histology and immunohistochemical analyses. Significant difference is set at -value < 0.05.
Results: The osteoblast-osteoclast quantification, osteoblast expression of Runx2, alkaline phosphatase, collagen-I, and osteocalcin, and osteoclast expression of receptor activator of NF-kB ligand (RANKL) and osteoprotegerin (OPG) in FDBX groups were statistically comparable ( > 0.05) with the composite group, while OPG/RANKL ratio, bone healing scores, and trabecular area were significantly higher ( < 0.05) in the composite compared to FDBX group.
Conclusion: Composite DBBM/DFDBX granules, within the limitation of this study, has better bone forming capacity than FDBX granules for filling of bone defects in the mandible.
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http://dx.doi.org/10.1055/s-0041-1736291 | DOI Listing |
Contemp Clin Dent
December 2024
Department of Periodontology, Faculty of Dentistry, Mohamed V University, Rabat, Morocco.
Critical alveolar ridge defects can result from several causes. Ridge expansion is a technique that aims to increase the width of the bone crest. A male patient presented an edentulous segment which leads to be careful concerning the adjacent teeth.
View Article and Find Full Text PDFFront Bioeng Biotechnol
January 2025
Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Background: Microfracture drilling is a surgical technique that involves creating multiple perforations in areas of cartilage defects to recruit stem cells from the bone marrow, thereby promoting cartilage regeneration in the knee joint. Increasing the exposed bone marrow surface area (more holes in the same area) can enhance stem cell outflow. However, when the exposed area is large, it may affect the mechanical strength of the bone at the site of the cartilage defect.
View Article and Find Full Text PDFFront Bioeng Biotechnol
January 2025
State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.
Objectives: Platelet concentrates (PCs), which are blood products that are abundant in platelets and growth factors, have become pivotal in treating maxillofacial tissue lesions due to their capacity for promoting bone and soft tissue recovery. This review will provide some recent progress of the use of platelet concentrates to treat lesions on maxillofacial tissues.
Subjects: We reviewed the mechanisms by which PCs promote wound healing and tissue recovery and summarized the application of PCs in the treatment of lesions on maxillofacial tissues, including medication-related osteonecrosis of the jaw, post-extraction wound healing, implant surgery, temporomandibular joint diseases, and periodontal tissue restoration.
Regen Biomater
November 2024
Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu 215000, PR China.
A biomechanical environment constructed exploiting the mechanical property of the extracellular matrix and external loading is essential for cell behaviour. Building suitable mechanical stimuli using feasible scaffold material and moderate mechanical loading is critical in bone tissue engineering for bone repair. However, the detailed mechanism of the mechanical regulation remains ambiguous.
View Article and Find Full Text PDFBioact Mater
April 2025
Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.
Articular cartilage has a limited self-healing capacity, leading to joint degeneration and osteoarthritis over time. Therefore, bioactive scaffolds are gaining attention as a promising approach to regenerating and repairing damaged articular cartilage through tissue engineering. In this study, we reported on a novel 3D bio-printed proteinaceous bioactive scaffolds combined with natural porcine cancellous bone dECM, tempo-oxidized cellulose nanofiber (TOCN), and alginate carriers for TGF-β1, FGF-18, and ADSCs to repair cartilage defects.
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