3D Printed Patient-Specific Resorbable Bone Scaffolds for Alveolar Bone Regeneration

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Oral and Maxillofacial Surgery

Background:

• Alveolar bone loss presents significant challenges in oral rehabilitation and implant dentistry.
• Traditional grafting methods have limitations including resorption and immune incompatibility.
• Advances in 3D printing enable patient-specific biodegradable scaffolds for defect reconstruction.

Purpose of the Study:

• To review preclinical and clinical studies on biodegradable 3D printed scaffolds for alveolar bone regeneration.
• To summarize the materials, applications, and future directions in this field.

Main Methods:

• Systematic literature search of PubMed, Scopus, and Google Scholar.
• Focus on studies investigating 3D printed scaffolds for alveolar bone regeneration.
• Analysis of material properties, clinical applications, and emerging strategies.

Main Results:

• Various materials like polymers (PLA, PCL, PLGA), ceramics (hydroxyapatite), and hydrogels are used.
• Composite scaffolds show enhanced osteogenic potential.
• Clinical applications include ridge preservation, guided bone regeneration, and implant site reconstruction.
• Bioinks with stem cells and growth factors improve scaffold properties.

Conclusions:

• 3D printed patient-specific biodegradable scaffolds are a promising alternative to conventional grafting.
• They offer precise defect reconstruction and improved biological integration.
• Further optimization of materials and vascularization is key for clinical success.