AI Article Synopsis
- Virtual surgery planning (VSP) is thought to improve maxillary positioning accuracy compared to conventional surgery planning (CSP), but there are few studies comparing these methods.
- This study compared the postoperative outcomes of splint-based maxillary positioning in 52 patients, using both VSP and CSP, by analyzing 3D alignment of their results.
- Findings indicated that both planning methods led to similar inaccuracies in achieving desired maxillary positions, particularly in vertical impaction and midline correction, suggesting no significant advantage of VSP over CSP.
Article Abstract
Background: Virtual surgery planning (VSP) is believed to reduce inaccuracies in maxillary positioning compared to conventional surgery planning (CSP) due to the elimination of face-bow transfer and laboratory steps. However, there is still a lack of comparative studies for the accuracy of splint-based maxillary positioning in CSP versus VSP. Therefore, the objective of this retrospective, observational study was to compare if splints produced by VSP and CSP reach postoperative outcomes within clinically acceptable limits.
Methods: The planned and actual postoperative results of 52 patients (VSP: n = 26; CSP: n = 26) with a mean age of 24.4 ± 6.2 years were investigated by three-dimensional (3D) alignment with planning software. The conventional treatment plan was digitized, so that the evaluation of both methods was performed in the same manner using the same coordinate system. Inaccuracies were measured by sagittal, vertical and transversal deviations of the upper central incisors and the inclination of the maxillary occlusal plane between the planned and achieved maxillary positions.
Results: Both methods demonstrated significant differences between the planned and actual outcome. The highest inaccuracies were observed in vertical impaction and midline correction. No significant differences between CSP and VSP were observed in any dimension. Errors in vertical and sagittal dimension intensified each other.
Conclusions: In conclusion, splint-based surgeries reached similar results regardless of the applied planning method and splint production.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8276391 | PMC |
| http://dx.doi.org/10.1186/s13005-021-00279-x | DOI Listing |
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