%0 Journal Article %T Effects of collagen/¦Â %A Ali Karami %A Hamid Tebyanian %A Hossein Eyni %A Mansoureh Movahedin %A Mohammad Hadi Norahan %A Mohammad Reza Nourani %A Nafiseh Baheiraei %A SM Javad Mortazavi %J Journal of Applied Biomaterials & Functional Materials %@ 2280-8000 %D 2019 %R 10.1177/2280800018820490 %X Bone defects remain a significant health issue and a major cause of morbidity in elderly patients. Composites based on collagen/calcium phosphate have been widely used for bone repair in clinical applications, owing to their comparability to bone extracellular matrix. This study aimed to evaluate the effects of a scaffold of collagen/calcium phosphate (COL/¦Â-TCP) on bone formation to assess its potential use as a bone substitute to repair bone defects. Bilateral full-thickness critically sized calvarial defects (8 mm in diameter) were created in New Zealand white rabbits and treated with COL/¦Â-TCP or COL scaffolds. One defect was also left unfilled as a control. Bone regeneration was assessed through histological evaluation using hematoxylin and eosin and Masson¡¯s trichrome staining after 4 and 8 weeks. Alizarin Red staining was also utilized to observe the mineralization process. Our findings indicated that COL/¦Â-TCP implantation could better enhance bone regeneration than COL and exhibited both new bone growth and scaffold material degradation %K ¦Â-tricalcium phosphate %K collagen %K bone substitute %U https://journals.sagepub.com/doi/full/10.1177/2280800018820490