Comparison of Changes in the Condylar Volume and Morphology in Skeletal Class III Deformities Undergoing Orthognathic Surgery Using a Customized versus Conventional Miniplate: A Retrospective Analysis

Abstract

With the great leap in the development of three-dimensional computer-assisted surgical technology, surgeons can use a variety of assistive methods to achieve better results and evaluate surgical outcomes in detail. This retrospective study aimed to evaluate the postoperative stability after bilateral sagittal split ramus osteotomy by volume rendering methods and to evaluate how postoperative stability differs depending on the type of surgical plate. Of the patients who underwent BSSRO, ten patients in each group (non-customized miniplate and customized miniplate) who met the inclusion criteria were selected. Preoperative and postoperative cone-beam computed tomography data were collected, and condylar morphological and landmark measurements were obtained using Checkpoint and OnDemand software, respectively. The postoperative condylar morphological dataset revealed no significant difference (p > 0.05) between the two groups. No significant difference (p > 0.05) was observed between the two groups in horizontal, vertical, or angular landmark measurements used to quantify operational stability. These results indicate that there is no difference in the surgical outcome between the patient-specific system and the conventional method, which will allow clinicians to take advantage of the patient-specific system for this surgical procedure, with favorable results, as with the conventional method.

Analysis of the Volumetric Asymmetry of the Mandibular Condyles Using CBCT

“…In the present study, a single examiner performed the volumetric analysis of the mandibular condyles. The single examiner concept was used by da Silva et al, Kim et al, and Lim et al 11 , 13 , 14 In the present study, the intra-examiner reliability was 0.93. Studies have reported excellent intra-examiner reliability for volumetric assessment of condyles using CBCT.…”

Volumetric changes in temporomandibular joint space following trans-oral vertical ramus osteotomy in patients with mandibular prognathism: a one-year follow-up study

“…This study was conducted to investigate changes in temporomandibular joint space after IVRO. Recent studies have combined patients who underwent LeFort I osteotomies with those who did not 30 – 32 . However, since this may affect the results, future research is needed to distinguish between these patient groups.…”

Clinical Stability of Bespoke Snowman Plates for Fixation following Sagittal Split Ramus Osteotomy of the Mandible

“…This task requires excellent precision and expertise. Nonetheless, recent advancements in patient-specific plates (PSPs) have improved the accuracy of condyle repositioning [ 10 , 11 , 12 ].…”