Application of customized dental-bone supported osteotomy guide plate in bilateral sagittal split osteotomy
10.3969/j.issn.1001-3733.2024.05.017
- VernacularTitle:个性化牙骨支持式截骨导板在双侧下颌矢状劈开截骨术中的应用
- Author:
Lidong WANG
1
;
Wen MA
;
Shuai FU
;
Changbin ZHANG
;
Qingying CUI
;
Canbang PENG
;
Yaqi CHEN
;
Ming LI
Author Information
1. 650106,昆明医科大学附属口腔医学院/医院口腔颌面外科,云南省口腔医学重点实验室
- Keywords:
Dental-bone supported surgical guide plate;
Bilateral sagittal split osteotomy;
Computer aided tech-nology;
Three-dimensional reconstruction
- From:
Journal of Practical Stomatology
2024;40(5):698-702
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects of customized dental-bone supported osteotomy guide plate in bilateral sagittal split osteotomy.Methods:24 patients(48 sides)with maxillofacial deformity underwent BSSO were included.The maxillofacial region of all patients was scanned by CT,the plaster dental models were scanned using laser surface scanner,and the 3D models were established.The osteotomy guide plates of the inner horizontal and anterior sagittal bone incision of mandible ramus were manufactured by digital technology.All splits underwent operation with(27 side)and without(21 sides)the osteotomy guide plate respectively by the same doc-tor,and the time for the inner horizontal and anterior sagittal bone incision of mandible ramus was recorded.Postoperative CT scan was performed to evaluate the surgical effects according to the lingual split scale(LSS)classification.Results:The wound in all patients healed well and no serious complication was observed.The time for the inner horizontal and anterior sagittal bone incision of mandible ramus in plate group and no plate group was(125.67±2.23)s and(141.15±3.69)s respectively(P＜0.05).The probability of mandi-ble splitting according to Hunsuck standard osteotomy line increased from 42.86％to 66.67％,and the probability of osteotomy line passing through mandibular nerve canal decreased from 33.33％to 7.41％,by using osteotomy guide plate.In addition,LSS4 type of osteotomy line was avoided by using osteotomy guide plates.Data analysis showed that the split pattern of sagittal split osteotomy of the mandibular ramus was influenced by the application of osteotomy guide plates(P＜0.05).Conclusion:The customized dental-bone supported osteotomy guide plate is effective in the completion of the operation and reducing time consuming and surgical complication in BSSO.
