Effects of different biomaterials on augmented bone volume resorptions

Area of Science:

• Biomaterials science
• Regenerative medicine
• Oral surgery

Background:

• Guided bone regeneration (GBR) is crucial for dental implantology.
• Biomaterials play a key role in bone augmentation and resorption.
• Evaluating new biomaterials is essential for improving GBR outcomes.

Purpose of the Study:

• To compare the effects of platelet-rich fibrin (PRF), deproteinized bovine bone graft (DBBG), and biphasic calcium phosphate (BCP) on bone volume resorption and augmentation.
• To assess the efficacy of these biomaterials in a rabbit calvarial model.

Main Methods:

• Nine rabbits were used, divided into three groups (PRF, DBBG, BCP).
• Titanium barriers were placed on calvaria, removed after 90 days.
• Computed tomography (CT) scans were taken at 90, 120, 150, and 180 days to evaluate bone volume.

Main Results:

• No significant differences in total volume resorption were observed among groups at 120, 150, and 180 days compared to day 90.
• Significant differences in total bone volume were found between PRF and the other groups (DBBG, BCP) at 180 days.
• Statistically significant differences in regenerated bone area were noted between PRF and BCP groups.

Conclusions:

• Deproteinized bovine bone graft (DBBG) and biphasic calcium phosphate (BCP) are effective for achieving sufficient bone volume augmentation in guided bone regeneration.
• Platelet-rich fibrin (PRF) demonstrated different bone volume characteristics compared to DBBG and BCP in this model.