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Chin Augmentation With Thin Cortical Bone Concomitant With Advancement Genioplasty

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Title: Chin Augmentation With Thin Cortical Bone Concomitant With Advancement Genioplasty
Authors: Matsushita, Kazuhiro Browse this author →KAKEN DB
Inoue, Nobuo Browse this author
Yamaguchi, Hiro-o Browse this author
Ooi, Kazuhiro Browse this author
Totsuka, Yasunori Browse this author
Issue Date: Mar-2010
Publisher: Elsevier
Journal Title: Journal of Oral and Maxillofacial Surgery
Volume: 68
Issue: 3
Start Page: 691
End Page: 695
Publisher DOI: 10.1016/j.joms.2009.09.066
PMID: 20171490
Abstract: Genioplasty is a commonly performed procedure and various modifications of the technique have been described. One postoperative complication after advancement genioplasty is resorption of the genial segment, occasionally leading to so-called witch's chin appearance when combined with a deep labiomental fold. To prevent this condition, bone grafting onto the advanced genial segment is commonly performed. This method, however, should necessitate grafting of a certain volume of block bone or autologous bone marrow. The donor site should be set up, occasionally even far from the recipient site such as iliac bone. We present two cases in which a novel augmentation technique was taken. Thin cortical bone was harvested from the upper frontal sharp edge of the genial segment, where the sharp edge was sometimes reduced with a bur to avoid irritating surrounding tissues. This harvested bone was placed onto the advanced genial segment obliquely in the sagittal plane, just like covering the gap. Vacant space was made under the thin cortical bone. Neither particulate bone nor any substances were packed into the vacant space, instead keeping the space open. At least 8 months after augmentation, the space was filled with newly formed bone. This phenomenon indicated that voluminous bone is not always required, but preparing adequate environmental circumstances for bone formation is crucial and integral. This method may bring about a new concept of the bone grafting and augmentation.
Type: article (author version)
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松下 和裕

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