Special Topic·Digital Medicine in Plastic Surgery·Clinical Research Article
The comparison of 3D printing surgical guide and traditional occlusal splint in the treatment with facial asymmetry cases
Ming Cai, Yusheng Yang, Xudong Wang, Biao Li, Shunyao Shen, Tengfei Jiang, Guofang Shen
Published 2018-06-25
Cite as Chin J Plast Surg, 2018, 34(6): 417-421. DOI: 10.3760/cma.j.issn.1009-4598.2018.06.003
Abstract
ObjectiveTo compare the surgical accuracy of the 3D printing surgical guide and traditional occlusal splint in the treatment of skeletal facial asymmetry cases.
Methods12 facial asymmetric patients underwent joint orthognathic and orthodontics treatments were included in this research. In the 3D printing group (n=6) the pre-surgical CT scan for the skeleton and laser scan for the dentures were performed and 3D orthognathic procedures including Le FortⅠ and BSSRO combined with genioplasty were planned. The 3D printing surgical guides were manufactured and applied during surgeries. Another 6 cases were received same procedures by traditional occlusal splint techniques as the control group. Post-surgical CT reconstruction and 3D superimposition with pre-surgical planning was carried out for outcome comparison.
ResultsThe maximal error of maxillar was 0.65 mm and average error was less than 1 mm in 3D printing group, while the maxillary maximal error was 2.11 mm and average error was greater than 1 mm in traditional group which showed the statistical significance (P<0.05).
ConclusionsThe usage of 3D printing surgical guide could improve the orthognathic surgical precision by controlling the jaw bone in a three-dimensional way.
Key words:
Three dimensional printing; Model surgery; Gnatho-guide plate; Orthognathic surgery
Contributor Information
Ming Cai
Department of Oral &
Craniomaxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200011, China
Yusheng Yang
Xudong Wang
Biao Li
Shunyao Shen
Tengfei Jiang
Guofang Shen
