| Objective: To evaluate the clinical effect of half-guided surgery and full-guided surgeryin the anterior maxilla.Methods:78patients needed implant surgery in the anterior maxilla were divided into3groups. All of the patients applied Simplant software to make the plan based on CBCTimages.32patients in Group A were not applied surgical guides, and were placed in47implants in the free-hand way.31implants were inserted in25patients of Group B withthe half-guided surgical guides.30implants were inserted in21patients of Group C withthe full-guided surgical guides. Postoperative CBCT were performed. Compared the threedimensional positions between preoperative virtual implants and postoperative actualimplants in the three groups through mesio-distal direction(X axis), buccal-lingualdirection(Y axis) and vertical direction (Z axis).Compared the deviation in the three groups,and evaluate clinical effect of the two kinds of surgical guides. Installed final restorations4～6months later. All patients were followed up in3～12months,and checked withclinical and radiological examination.Results: Deviation of X、Y、Z axis in Group A was0.553±0.17mm、0.539±0.15mm、0.577±0.17mm. Deviation of X、 Y、 Z axis in Group B was0.553±0.17mm、0.539±0.15mm、0.577±0.17mm. Deviation of X、Y、Z axis in Team C was0.553±0.17mm、0.539±0.15mm、0.577±0.17mm. The difference between Group A and Group B, Group Aand Group C were statistically significant. The difference between Group B and Group Cwas not statistically significant. In the following up period, no implants loosed, andradiological exam did not showed bone resorption obviously around the implants.Conclusion: Half-guided implant surgery and full-guided implant surgery are moreavailable to acquire the suitable three dimensional position than implant surgery in the freehand way. The application of half-guided implant surgery is more convenient thanfull-guided surgery, which is worth of clinical application. |
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