Design and validation of a surgical guide for the retrieval of foreign body instruments in jaw
10.16098/j.issn.0529-1356.2023.02.018
- Author:
Meng-Yun MAO
1
;
Cheng-Ze WANG
1
;
Hai-Hua ZHU
1
;
Fu-Dong ZHU
1
;
Ming-Xing FAN
2
;
Xiao-Fei WU
3
Author Information
1. Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University
2. Hangzhou 6D Dental Tech Co, Ltd
3. Department of Stomatology, The Fifth People's Hospital of Yuhang District
- Publication Type:Journal Article
- Keywords:
Cone-beam computed tomography;
Foreign body in mandible;
Goat;
Surgical guide
- From:
Acta Anatomica Sinica
2023;54(2):244-248
- CountryChina
- Language:Chinese
-
Abstract:
Objective To design and validate a novel surgical guide for retrieval of foreign body in jaw. Methods Firstly, a surgical guide based on cone beam computed tomography and trephine technique was designed to remove broken dental instrument fragments. Its feasibility and accuracy were assessed by removing broken dental instrument in goat mandible, and then it was successfully applied in clinical cases. The linear and angular discrepancies between actual and planned columnar bone with imaginary fragment was analyzed. The euclidean distance was measured at the hex and apex of the columnar bone and the angle of axis deviation was also calculated. We obtained seven parameters (cdh, cda, hdh, hda, vdh, vda, and ad) to describe deviations. Results Mean central deviation at the hex and apex was (0.51 ± 0.14) mm and (0.62 ± 0.19) mm, respectively. Accompanying mean values were as follow: horizontal deviation at the hex was (0.48 ± 0.16) mm, horizontal deviation at the apex was (0.52 ± 0.22) mm, vertical deviation at the hex was (0.17 ± 0.09) mm, vertical deviation at the apex was (0.29 ± 0.13) mm, and angular deviation of (5.38 ± 3.43) degrees. In a clinical case, the guide successfully located and removed the fracture file. Conclusion This study reveals that this kind novel surgical guide could aid to locate and remove the foreign body in jaw.
