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Multidimensional osteodistraction for correction of implant malposition in edentulous segments
Author(s) -
Zechner Werner,
Bernhart Thomas,
Zauza Konstantin,
Celar Ales,
Watzek Georg
Publication year - 2001
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1034/j.1600-0501.2001.120515.x
Subject(s) - implant , distraction , context (archaeology) , orthodontics , dentistry , medicine , osteotomy , surgery , psychology , geology , paleontology , neuroscience
This study examined multidimensional osteodistraction as a treatment method for correction of implant malposition and as an alternative to augmentation procedures. The prosthetically unfavourable implant positions were due to growth‐related implant malposition (in the context of treatment of young patients with oligodontia) or primary bone‐driven implant insertions. The radiographical and clinical findings obtained with this osteodistraction technique are presented and discussed. A tooth‐supported osteodistractor for multidimensional distraction with custom‐fabricated distraction abutments was used for treatment of 8 patients with a total of 9 maxillary and mandibular edentulous segments including single‐tooth gaps. All patients underwent an osteotomy at a minimum distance of 1 mm from the implant surface. Following primary wound healing, distraction was carried out by 1 mm in vertical direction and 0.5 mm in the demanded transverse direction daily until the prosthetically optimized position was achieved. During and after the 12‐week retention phase, the patients were evaluated clinically and radiographically. Multidimensional osteodistraction was carried out successfully in all 8 patients. The distraction distances were 3 to 11 mm in vertical direction and a maximum of 5 mm in buccolingual/buccopalatal direction. The malpositioned implants were brought into a prosthetically optimized position in all cases. The results of this study show that this multidimensional osteodistraction technique allows both augmentation of edentulous segments with a clearly compromised implant host site and correction of unfavourable implant positions.