Abstract:
:The purpose of this study was to examine the changes in border movement of the mandible before and after mandibular ramus osteotomy in patients with prognathism. The subjects were 73 patients with mandibular prognathism who underwent sagittal split ramus osteotomy (SSRO) with and without Le Fort I osteotomy. Border movement of the mandible was recorded with a mandibular movement measure system (K7) preoperatively and at 6 months postoperatively. Of the 73 patients, 21 had measurements taken at 1.5 years postoperative. Data were compared between the pre- and postoperative states, and the differences analyzed statistically. There was no significant difference between SSRO alone and SSRO with Le Fort I osteotomy in the time-course change. The values at 6 months postoperative were significantly lower than the preoperative values for maximum vertical opening (P=0.0066), maximum antero-posterior movement from the centric occlusion (P=0.0425), and centric occlusion to maximum opening (P=0.0300). However, there were no significant differences between the preoperative and 1.5 years postoperative measurements. This study suggests that a postoperative temporary reduction in the border movement of the mandible could recover by 1.5 years postoperative, and the additional procedure of a Le Fort I osteotomy does not affect the recovery of mandibular motion after SSRO.
journal_name
Int J Oral Maxillofac Surgjournal_title
International journal of oral and maxillofacial surgeryauthors
Ueki K,Marukawa K,Moroi A,Sotobori M,Ishihara Y,Iguchi R,Kosaka A,Nakano Y,Higuchi M,Nakazawa Rdoi
10.1016/j.ijom.2013.07.740subject
Has Abstractpub_date
2014-02-01 00:00:00pages
213-6issue
2eissn
0901-5027issn
1399-0020pii
S0901-5027(13)01033-3journal_volume
43pub_type
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章,meta分析,评审
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.ijom.2018.01.006
更新日期:2018-05-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
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