What question did this study set out to answer?

Evaluate if non-autogenous bone block grafts are suitable alternatives to autogenous ones based on histomorphometric and clinical outcomes.

March 28, 2026Oral Surgery

Non‐Autogenous vs. Autogenous Bone Block Grafts for Alveolar Ridge Augmentation: A Systematic Review

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This systematic review evaluates the effectiveness of non-autogenous bone grafts for alveolar ridge augmentation, suggesting potential alternatives.

Evaluate if non-autogenous bone block grafts are suitable alternatives to autogenous ones based on histomorphometric and clinical outcomes.
Conducted a systematic review of randomised controlled trials (RCTs) and clinical studies
Included studies on adult patients who underwent alveolar ridge augmentation
Utilized an electronic search of medical databases until March 2025
Assessed studies for risk of bias and conducted narrative synthesis.
Included eight studies with 199 patients
No significant differences in new bone formation percentages between autogenous and xenograft bone blocks
Xenograft showed higher residual graft percentage at biopsy
No differences in implant survival rates between grafts; higher complication rates noted in autogenous bone blocks
Inconsistent findings in comparing autogenous and allograft bone block outcomes.

Chana et al. (2026) studied this question.

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This systematic review evaluates the effectiveness of non-autogenous bone grafts for alveolar ridge augmentation, suggesting potential alternatives.