Application of hydroxyapatite/collagen composite material for maxillary sinus floor augmentation

Area of Science:

• Biomaterials Science
• Oral and Maxillofacial Surgery
• Dental Implantology

Background:

• Maxillary sinus floor augmentation (MSFA) is crucial for dental implant success in the posterior maxilla.
• Graft materials are essential for predictable outcomes in MSFA.
• Hydroxyapatite/collagen composite (HAp/Col) is a potential biomaterial for bone regeneration.

Purpose of the Study:

• To evaluate the efficacy of hydroxyapatite/collagen composite (HAp/Col) as a graft material for maxillary sinus floor augmentation (MSFA).
• To assess the success rate of simultaneous MSFA and dental implant placement using HAp/Col.

Main Methods:

• Simultaneous maxillary sinus floor augmentation (MSFA) and dental implant placement were performed.
• A lateral approach was utilized for the augmentation procedure.
• Implant success was evaluated, noting factors like alveolar bone height, cortical bone thickness, and implant stability quotient.

Main Results:

• The overall success rate for implants placed after MSFA with HAp/Col was 84.2% (16 out of 19 implants).
• Implant failures (3 cases) were associated with smaller alveolar bone heights, thinner cortical bone, and lower implant stability quotient values.
• These findings suggest a correlation between initial bone parameters and graft material success.

Conclusions:

• Hydroxyapatite/collagen composite (HAp/Col) can be a viable graft material for maxillary sinus floor augmentation (MSFA).
• Optimizing preoperative conditions, including alveolar bone height, cortical bone thickness, and healing period, is critical for maximizing implant success rates.
• Further research with optimized parameters may confirm HAp/Col's utility in complex restorative cases.