ObjectiveTo study the effect of 3D printing implant guide on the accuracy and aesthetic effect of patients with single tooth loss.

MethodsSixty patients with single tooth defect were selected, and were randomly divided into observation group and control group(30 cases in each group).The patients in the control group were treated with traditional implant guide, and the patients in the observation group were treated with 3D printing implant guide.The deviation distances of implant top and middle in mesial, distal, buccolingual and vertical directions were calculated in 2D plane, and the deviation angles of mesial, distal and buccolingual directions were calculated in 3D plane.The tooth color, shape, edge coloring and the degree of fit in the two groups were observed.The incidence of the adverse events within 2 weeks after dental implantation was observed and recorded.

ResultsCompared with the control group, in the observation group, the deviation distances of the top and middle of the implant in the mesial and distal, buccolingual and vertical directions were smaller(P < 0.01);the deviation angles in the mesial, distal and buccolingual directions were smaller(P < 0.01);compared with the control group, in the observation group, there had more patients with grade A in the color, shape, edge coloring and tightness of implant teeth(P < 0.05), and the total incidence of adverse events was lower(P < 0.05).

ConclusionsCompared with the traditional implant guide, the 3D printing implant guide can reduce the deviation distance and angle of the implant teeth, and has higher evaluation in the color, shape and edge coloring of the implant teeth.