Accuracy of Edentulous Computer-Aided Implant Surgery as Compared to Virtual Planning: A Retrospective Multicenter Study

Journal of Clinical Medicine

R. Vinci¹  E.F. Gherlone²  F. Mastrangelo³  L. Lo Muzio³  C. Crocetta⁴  A. Scarano⁵  A.G. Lucchina⁶  R. Abundo⁷  M. Manacorda⁸ 

[1] Dental Clinic, Ateneo Vita Salute, San Raffale Milan, 20019, Italy;Dental Clinic, Ateneo Vita Salute, San Raffale Milan, Italy;Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy;Department of Economics, University of Foggia, 71121 Foggia, Italy;Department of Medical, Oral and Biotechnological Sciences, University of Chieti, 66100 Chieti, Italy;Department of Oral and maxillofacial Sciences, University of Piemonte Orientale, 10121 Turin, Italy;Private Practice, 10121 Turin, Italy;Private Practice, 20021 Milan, Italy;

关键词: guided surgery;    titanium dental implant;    three-dimensional implant accuracy;    three-dimensional software implant;    planning;    permutation tests;    non-parametric combination;    multivariate analysis;    osseointegration;    immediate-load dental implants;   

DOI  :  10.3390/jcm9030774

来源: DOAJ

【 摘 要 】

Purpose: To evaluate the accuracy of computer-aided dental implant positions obtained with mucosal-supported templates as compared to Three-Dimensional (3D) planning. Materials and methods: One-hundred implants were inserted into 14 edentulous patients using the All-on-4/6 protocol after surgical virtual planning with RealGUIDE, 3DIEMME, and Geomagic software. After 6 months, three-dimensional neck (V) and apex (S) spatial coordinates of implants and angle inclination displacements as compared to virtual plans were evaluated. Results: The S maxilla coordinates revealed a significant discrepancy between clinical and virtual implant positions (p-value = 0.091). The V coordinates showed no significant differences (p-value = 0.71). The S (p-value = 0.017) and V (p-value = 0.038) mandible coordinates showed significant discrepancies between the clinical and virtual positions of the screws. Implant evaluation showed a 1-mm in average of the horizontal deviation in the V point and a 1.6-mm deviation in the S point. A mean 5° angular global deviation was detected. The multivariate permutation test of the S (p-value = 0.02) confirmed the difference. Greater errors in the mandible were detected as compared to the maxilla, and a higher S discrepancy was found in the posterior jaw compared to the anterior section of both the mandible and maxilla. Conclusions: Computer-aided surgery with mucosal-supported templates is a predictable procedure for implant placement. Data showed a discrepancy between the actual dental implant position as compared to the virtual plan, but this was not statistically significant. However, the horizontal and angle deviations detected indicated that flap surgery should be used to prevent implant positioning errors due to poor sensitivity and accuracy in cases of severe jaw atrophy.

【 授权许可】

Unknown