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Volume 34 , Issue 2
March/April 2014
Pages 269–276

Two-Stage Horizontal Bone Grafting with the Modified Shell Technique for Subsequent Implant Placement: A Case Series

Michael Stimmelmayr, Priv Doz Dr Med Dent/Wolfgang Gernet, Prof Dr Med Dent Dr hc, PhD/Daniel Edelhoff, Prof Dr Med Dent, PhD/Jan-Frederik Güth, Dr Med Dent/Arndt Happe, Priv Doz Dr Med Dent/Florian Beuer, Priv Doz Dr Med Dent, PhD

PMID: 24600663
DOI: 10.11607/prd.1374

This case series evaluated the graft stability and resorption of a modified shell technique for horizontal ridge augmentation. Autogenous bone shells of 1-mm thickness were fixed with microtitanium screws with the gaps between the shells and ridge filled with autogenous bone chips. In 22 patients, 30 cases were performed to augment 50 regions. Forty-two implants were inserted after a healing period of 5.5 (± 1.0) months. Preoperatively, the mean width of the crest was 2.7 mm (± 0.9), after bone grafting, 6.7 mm (± 0.8), and during implant placement, 5.9 mm (±0.7), and the mean resorption was 0.8 mm (± 0.5) (P < .001). This technique showed promising results. However, due to slight resorption, the ridge should be over contoured. (Int J Periodontics Restorative Dent 2014;34:269–276. doi: 10.11607/prd.1374)

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