Application of Hydroxyapatite Composites in Bone Tissue Engineering: A Review

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Orthopedic Research

Background:

• Bone defects from trauma, tumors, or infection impair bone regeneration.
• Hydroxyapatite (HAp) is biocompatible and osteoconductive but has limitations.
• HAp requires combination with other materials to improve functionality for bone defect repair.

Purpose of the Study:

• To review current research on Hydroxyapatite (HAp) composites in bone tissue engineering.
• To summarize the properties and applications of HAp composites.
• To discuss challenges and future directions for HAp composite development.

Main Methods:

• Literature review of HAp composites in bone tissue engineering.
• Categorization of research based on composite properties and applications.
• Analysis of mechanical properties, degradation rates, and functionality.

Main Results:

• HAp composites provide mechanical support for cell growth and tissue regeneration.
• Composite scaffolds facilitate new bone formation and vascularization.
• HAp composites show promise in bone defect repair, dental implants, and spinal fusion.

Conclusions:

• HAp composites offer significant advantages over pure HAp for bone regeneration.
• Further optimization of material properties and preparation techniques is needed.
• HAp composites represent a promising strategy for addressing complex bone defects.