TY - JOUR
T1 - The different effects of intraoral vertical ramus osteotomy (IVRO) and sagittal split ramus osteotomy (SSRO) on mandibular border movement
AU - Komori, Hiroki
AU - Kawanabe, Noriaki
AU - Kataoka, Tomoki
AU - Kato, Yui
AU - Fujisawa, Atsuro
AU - Yamashiro, Takashi
AU - Kamioka, Hiroshi
N1 - Funding Information:
This work was supported by JSPS KAKENHI [grant number JP16K11787].
Publisher Copyright:
© 2017, © 2017 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/7/4
Y1 - 2018/7/4
N2 - Objectives: This study investigated the different effects of intraoral vertical ramus osteotomy (IVRO) and sagittal split ramus osteotomy (SSRO) on mandibular border movement. Methods: The participants included 22 patients receiving IVRO and 22 patients receiving SSRO who were treated at Okayama University Hospital. Their mandibular border movement was evaluated in three dimensions with 6° of freedom using an optical recording system. Results: A strong correlation between condylar and lower incisor movement was observed during maximum jaw protrusion and laterotrusion. Significant improvements in condylar and lower incisor movement were detected after orthognathic surgery during maximum jaw protrusion and laterotrusion in the IVRO group and during maximum jaw protrusion in the SSRO group. Discussion: IVRO likely achieves greater improvement in jaw movement than SSRO. Therefore, the application of IVRO could be considered in the treatment of patients with jaw deformities featuring temporomandibular joint problems.
AB - Objectives: This study investigated the different effects of intraoral vertical ramus osteotomy (IVRO) and sagittal split ramus osteotomy (SSRO) on mandibular border movement. Methods: The participants included 22 patients receiving IVRO and 22 patients receiving SSRO who were treated at Okayama University Hospital. Their mandibular border movement was evaluated in three dimensions with 6° of freedom using an optical recording system. Results: A strong correlation between condylar and lower incisor movement was observed during maximum jaw protrusion and laterotrusion. Significant improvements in condylar and lower incisor movement were detected after orthognathic surgery during maximum jaw protrusion and laterotrusion in the IVRO group and during maximum jaw protrusion in the SSRO group. Discussion: IVRO likely achieves greater improvement in jaw movement than SSRO. Therefore, the application of IVRO could be considered in the treatment of patients with jaw deformities featuring temporomandibular joint problems.
KW - Intraoral vertical ramus osteotomy (IVRO)
KW - mandibular border movement
KW - maximum jaw laterotrusion
KW - maximum jaw protrusion
KW - sagittal split ramus osteotomy (SSRO)
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U2 - 10.1080/08869634.2017.1317899
DO - 10.1080/08869634.2017.1317899
M3 - Article
C2 - 28436308
AN - SCOPUS:85018839379
SN - 0886-9634
VL - 36
SP - 228
EP - 233
JO - Cranio - Journal of Craniomandibular Practice
JF - Cranio - Journal of Craniomandibular Practice
IS - 4
ER -