AI Article Synopsis
- This study aimed to assess how different fixation materials affect bone changes after sagittal split ramus osteotomy (SSRO).
- The research involved 74 patients who were categorized into five groups based on the type of fixation used, including both titanium and various absorbable plates.
- Findings indicated significant differences in certain bone parameters over time, suggesting that the choice of fixation materials impacts bone healing after the procedure.
Article Abstract
Purpose: The purpose of this study was to evaluate bony change between the proximal and distal segments after sagittal split ramus osteotomy (SSRO) using different fixation materials.
Subjects And Methods: The subjects consisted of 74 patients (21 male and 53 female; 148 sides) who underwent SSRO with and without Le Fort I osteotomy. They were divided into five groups: (1) an MT group, mono-cortical titanium plate fixation (26 sides); (2) an MA group, mono-cortical absorbable plate fixation (48 sides); (3) a BA group, bi-cortical absorbable plate fixation (22 sides); (4) an MAα group, mono-cortical plate absorbable fixation with α-tricalcium phosphate (36 sides); and (5) a BAα group, bi-cortical plate absorbable fixation with α-tricalcium phosphate (16 sides). Ramus square (RmS), ramus width (RmM-RmL) and ramus length (RmA-RmP) at the horizontal plane under the mandibular foramen were assessed pre-operatively, immediately after surgery, and at 1 year after surgery by computed tomography (CT).
Results: There were significant differences among the groups regarding change over time in RmS (p = 0.0126) and RmM-RmL (p = 0.0001). However, there was no significant difference among the groups regarding change over time in RmA-RmP.
Conclusion: These results suggest that the use of different fixation materials leads to significant differences in the bone healing process after SSRO.
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| http://dx.doi.org/10.1016/j.jcms.2015.03.009 | DOI Listing |
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