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Published on: August 13, 2019
Guided Bone Regeneration in the Edentulous Atrophic Maxilla Using Deproteinized Bovine Bone Mineral (DBBM) Combined
João Manuel Mendez Caramês1,2,3, Filipe Araújo Vieira1, Gonçalo Bártolo Caramês1
1Instituto de Implantologia, Avenida Columbano Bordalo Pinheiro, n° 50, 1070-064 Lisbon, Portugal.
Background:
Bone regeneration procedures represent a major challenge in oral surgery. This study aimed to evaluate a composite PRF/particulate xenograft in guided bone regeneration.
Methods:
Edentulous patients with horizontal ridge deficiencies in the anterior maxilla and candidates to an immediate-loading full-arch rehabilitation were included. Horizontal linear measurements indicating bone gain were assessed from computer beam computer tomography (CBCT) scans obtained at pre-surgery, post-surgery, and the 12-month follow-up. Mean bone values were presented as mean ± 95% CI. Non-parametric tests were used as appropriate, and the effect size was calculated with Cohen's d repeated measures.
Results:
Eighteen patients were rehabilitated with 72 implants. The mean horizontal bone width was 4.47 [4.13-4.80] mm pre-surgically, 9.25 [8.76-9.75] mm post-surgically, and 7.71 [7.28-8.14] mm 12 months after.
Conclusions:
PRF associated with a xenograft seems to promote an effective horizontal bone gain. Randomized clinical trials are needed to confirm the benefits of this surgical approach.
