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International Journal of Periodontics & Restorative Dentistry



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Int J Periodontics Restorative Dent 40 (2020), No. 4     30. June 2020
Int J Periodontics Restorative Dent 40 (2020), No. 4  (30.06.2020)

Page 571-578, doi:10.11607/prd.4324, PubMed:32559039

Ridge Augmentation Comparing a Cancellous Block Allograft to an Osteoinductive Demineralized Bone Matrix Allograft: A Randomized, Controlled, Blinded Clinical Trial
Cockerham III, Bobby Lee / Patel, Abhishek / Greenwell, Henry / Hill, Margaret / Shumway, Brian / Hsu, Henry T.
Twenty-six patients with a horizontal ridge defect were entered into this 4-month randomized, controlled, blinded clinical trial to compare a cancellous block allograft to a demineralized bone matrix (DBM) allograft for ridge augmentation. Six patients were excluded from the study, leaving 20 for data interpretation. Both groups had a xenograft overlay and a collagen membrane. For the Block group there was a significant gain of 4.8 ± 1.9 mm (P =.00002; 95% confidence interval [CI]: 3.49 to 6.21), while the DBM group gained 4.6 ± 2.4 mm (P =.0002; 95% CI: 2.88 to 6.36). Vertical change was minimal for both groups (P > .05). The Block group had a mean of 40% vital bone while the DBM group had 35%.