Abstract:
Objective
To evaluate the clinical results of individualized artifical titanium mandible produced by rapid prototyping (RP) and reverse engineering (RE) technology.
Methods
Six patients with mandiblar tumors and underwent surgery at the Department of Oral and Maxillofacial Surgery, People's Hospital of Zhongshan City, from 2005 to 2007 were selected.Measurement data of mandibular lesions were collected by CT scan and three-dimensional reconstruction.Bony lesions segments were removed in the digital model according to operation design.The mandibular defect models were made.Digital models of the implants were obtained by digital image technology.Resin models were obtained by rapid prototyping technique and used for casting of individual artifical mandible.
Results
The artifical mandibles produced by rapid prototyping fit in place quickly and accurately during surgery.All patients achieved one stage healing.After a follow-up of 7 to 30 months, mandibular defects were reconstructed satisfactorily and the mouth opening was 3.2 - 3.6 cm.The occlusions were normal.
Conclusions
RE/RP technology is feasible and accurate for reconstruction of discontinuous mandible.Individualized artifical mandible can fulfill the requirements of anatomy and function in mandible reconstruction.
Key words:
Mandibular defect,
Individual artifical mandible,
Reverse engineering,
Rapid prototyping
Ji-nan WU, Zhen-yu GONG, Jue-yao CHEN, Jun-lan CHEN, Qian WANG, Zhi-jie XU, Qiao-yi ZHENG, Ya-xiong LIU, Zhong-dong WANG. Clinical application of individualized artifical mandible based on rapid prototyping technology[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2011, 5(02): 161-168.