The Influence of different graft designs of intraoral bone blocks on volume gain in bone augmentation procedures: an in vitro study
Lukas Kalchthaler, DDS/Reinald Kühle, MD, DDS/Christopher Büsch, MSc/Jürgen Hoffmann, MD, DDS/Christian Mertens, DDS: Purpose: Intraoral bone blocks from the external oblique are the gold standard for alveolar ridge bone grafting, but the - limited amount of available bone limits their use for l...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
November/December 2020
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| In: |
The international journal of oral & maxillofacial implants
Year: 2020, Volume: 36, Issue: 6, Pages: 1083-1089 |
| ISSN: | 1942-4434 |
| Online Access: | Verlag: http://quintpub.com/journals/omi/abstract.php?iss2_id=1715&article_id=20893#.YBKugxYxlPY
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| Author Notes: | Lukas Kalchthaler, Reinald Kühle, Christopher Büsch, Jürgen Hoffmann, Christian Mertens |
| Summary: | Lukas Kalchthaler, DDS/Reinald Kühle, MD, DDS/Christopher Büsch, MSc/Jürgen Hoffmann, MD, DDS/Christian Mertens, DDS: Purpose: Intraoral bone blocks from the external oblique are the gold standard for alveolar ridge bone grafting, but the - limited amount of available bone limits their use for larger defects. The objective of this study was to compare whether - different graft designs of intraoral bone blocks could affect the amount of bone gain. Materials and Methods: In this in - vitro study, 20 pig jaws were used to harvest bone blocks and subsequently augment single-wall bone defects. Each - bone graft was first used as a full block, and then the same block was divided lengthwise into two blocks, with one block - fixed at a distance as a cortical shell and the second block particulated to fill the gap between graft and bone. Three - stereolithographic (STL) files (pre-OP, full block, split block) were generated using an intraoral scanner. All STL files were - evaluated for volume gain and horizontal bone dimensions. Results: A mean volume gain of 0.36 cm<sup>2</sup> (SD: 0.09) was - achieved for the full block and 0.78 cm<sup>2</sup> (SD: 0.14) for the split block using the same block. The difference was statistically - significant (P < .0001). A mean horizontal bone gain of 4.37 mm (SD: 0.93) was achieved with a full block and 5.77 mm - (SD: 0.85) with the shell technique (P < .0001). Conclusion: With the same amount of bone removed, first as a full block - and then as a split block, the split-block technique achieved a significantly higher bone gain compared with the full-block - design. |
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| Item Description: | Gesehen am 28.01.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1942-4434 |