Alveolar Ridge Splitting and Simvastatin Loaded Xenograft for Guided Bone Regeneration and Simultaneous Implant Placement: Randomized Controlled Clinical Trial

Objectives The present study goal was to assess clinically and radiographically using simvastatin (SMV) loaded xenograft for guided bone regeneration (GBR) around simultaneously placed implants with alveolar ridge splitting in patients with horizontally atrophic jaw defect. Materials and methods Randomized distribution of the twenty-two patients into two groups (11 patients each) was performed. Group I participants received alveolar ride splitting (ARS) with GBR using SMV gel mixed bone graft and a barrier membrane with simultaneous implant placement. Group II received the same treatment protocol without SMV gel. At the baseline, 6- and 9-months post-surgery, clinical and radiological alterations were assessed. Results Six months after therapy, PES records of group I were statistically significantly improved than those of group II ( P < .001). Group I exhibited statistically significant expansion of the alveolar ridge over group II after 6 and 9 months ( P < .001). When compared to group II over the evaluation interval between 6 and 9 months, group I demonstrated statistically substantially minimal loss of the mean marginal bone level ( P < .001). At the 6- and 9-month observation periods, bone density gain was considerably higher in group I than that in group II ( P < .001). Conclusion Alveolar ridge splitting along with GBR-augmented SMV improve the clinical and radiographical outcomes around dental implant over GBR alone. Clinical relevance Augmenting GBR with SMV in alveolar ridge splitting could boost implant osseointegration and enhance peri-implant tissue changes. Clinical trial registration: NCT05020405.