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Volume 31 , Issue 4
July/August 2011

Pages 391-399

Sinus Augmentation in Two Patients with Severe Posterior Maxillary Height Atrophy Using Tissue-Engineered Bone Derived from Autologous Bone Cells: A Case Report

Luigi Montesani, MD, DMD/Ulrike Schulze-Späte, DMD, PhD/Serge Dibart, DMD

PMID: 21837305
DOI: 10.11607/prd.00.0993

Implant placement in the edentulous maxilla often represents a clinical challenge because of insufficient bone height after crestal bone resorption and maxillary sinus pneumatization. In this study, tissue engineering techniques were used to increase bone height in the posterior maxilla before implant placement. Periosteal biopsies were harvested, and osteoblast precursor cells were isolated and cultured on three-dimensional fleeces (nonwoven polyglactin-910 fibers connected by poly-p-dioxanon bonding sites) in vitro. Tissue-engineered bone chips were implanted into the sinus cavity using a lateral window approach. Four months post–sinus augmentation, implants were placed and subsequently restored. During a 12-month follow-up period, no implant failure was observed. (Int J Periodontics Restorative Dent 2011;31:391–399.)

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