Related Experiment Video
Updated: Feb 6, 2026

Protocol for Developing a Femur Osteotomy Model in Wistar Albino Rats
Published on: August 31, 2022
Postoperative Positional and Dimensional Changes of Mandibular Canal after Bilateral Sagittal Split Set-Back
Duygu İşcan1, Melih Motro2, Ahu Acar3
1Private Practice, İstanbul, Turkey.
Objective:
This preliminary study was planned to provide information about preoperative mandibular canal (MC) position and the postoperative positional changes of MC and length in three dimensions, with the purpose of providing some assistance in reducing inferior alveolar neurosensory disturbance (IAND).
Methods:
MC was examined on CBCT data using SimPlant Pro Standalone 13.0. MC locations were measured in all dimensions, with respect to mandibular bony borders.
Results:
The results showed that MC is frequently located in the midthird of the ramus anteroposteriorly and superoinferiorly and in the midthird of the corpus superoinferiorly. Postoperatively, ramus width was increased, ramus length was decreased significantly, and MC was repositioned laterally and inferiorly. MC length was decreased on both sides, non-correlated with the set-back amounts.
Conclusion:
Preoperative results may be beneficial for the prediction of MC position for surgeons, and postoperative results will be used for the following studies to correlate postoperative positional changes with IAND.
Related Concept Videos
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
Position-effect Variegation
Position and Displacement
Serial Position Effect
Setting Time of Cement
Dimensional Analysis
Conversion Factors and Dimensional Analysis
The unit...

