The experimental study on edentulous mandible implantation assisted by metal surgical guides based on computer numerical control technology
XU Chu, WU Bu-ling, LI Jian-yi, BAI Yu-zhe, SONG Ying, MA Li-chao, TANG Lei
Chinese Journal of Clinical Anatomy ›› 2016, Vol. 34 ›› Issue (3) : 289-292.
The experimental study on edentulous mandible implantation assisted by metal surgical guides based on computer numerical control technology
Objective To explore a new method for manufacturing customized edentulous mandible metal implant surgical guides using computernumerical control (CNC) machines. Methods Eight corpse edentulous mandibles were randomly divided into two groups, CNC metal guides and rapid prototyping (RP) resin guides were manufactured respectively. All guides were used to assist edentulous mandible implantations to analyze the accuracy in vitro. Results The absolute deviation on horizontal plane was (0.23±0.14) mm in the CNC group and (1.01±0.27) mm in the RP group, respectively, between which the difference was significant (P=0.000). The absolute deviation on sagittal plane was (0.30±0.24) mm in the CNC group and (0.95±0.24) mm in the RP group, respectively, between which the difference was significant (P=0.000). Conclusions In vitro implantations, CNC surgical guides assisted implantations have higher accuracy than RP guides.
CNC machine / Edentulous mandible / Implant surgical guide / Computer aided design
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