ArticleJournal of dental sciences2026
Enhanced accuracy of cutting planes and condylar positioning in mandibular reconstruction using three-dimensional-printed guides: An in vitro study.
Article in Journal of dental sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background/purpose: Accurate mandibular reconstruction, particularly condylar repositioning, is essential for restoring function and facial symmetry following segmental resection. This study aimed to evaluate the accuracy of cutting planes and three-dimensional (3D) condylar positioning using 3D-printed cutting guides combined with plate-guided positioning. Materials and methods: This in vitro study included sixteen 3D-printed mandibular models simulating segmental defects. Virtual surgical planning was employed to fabricate 3D-printed cutting guides and plate-guided positioning. Postoperative models were compared with their corresponding virtual models using 3-Matic software to assess cutting plane and 3D condylar positioning deviations. Results: The angular deviations of the proximal cutting plane averaged 13.27 ± 10.36 mm in pitch and 12.1 ± 8.67 mm in yaw, demonstrating acceptable alignment. The mean difference in defect distance was 0.51 ± 3.53 mm ( Conclusion: 3D-printed cutting guides and plate-guided positioning allowed for accurate replication of virtual surgical plans in mandibular reconstruction. All deviations remained within acceptable limits. Further research is recommended to validate these findings.
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