Assessment of Bone Regeneration Around Implants Using Different Bone Substitute Materials

Bone regeneration around dental implants is critical for the success of implant therapy, especially in patients with compromised bone quality or volume. The choice of bone substitute materials plays a pivotal role in enhancing osseointegration and bone regeneration.

A total of 40 patients requiring dental implant placement with bone augmentation were included in this prospective study. Patients were randomly divided into four groups (n = 10 each), receiving different bone substitute materials: Group A - autogenous bone graft; Group B - xenograft; Group C - alloplastic graft; and Group D - combination of autogenous and xenograft. Cone-beam computed tomography (CBCT) was used to assess bone volume and density preoperatively and at 6 months postoperatively. The outcomes were measured in terms of percentage increase in bone volume and density.

All groups showed significant improvement in bone volume and density after 6 months (P < .05). Group A demonstrated the highest percentage increase in bone volume (45 ± 5%) and density (55 ± 6%). Group D showed comparable results with a 42 ± 4% increase in bone volume and a 53 ± 5% increase in density. Groups B and C showed moderate improvement, with increases in bone volume of 35 ± 6% and 32 ± 5%, respectively. The combination of autogenous and xenograft materials (Group D) provided the best balance between efficacy and clinical feasibility.

Different bone substitute materials demonstrate varying levels of effectiveness in enhancing bone regeneration around implants. Autogenous grafts and their combination with xenografts provide superior outcomes in terms of bone volume and density.