Accuracy evaluation of 3D printed guide assisted flapless microosteoperforations in the anterior mandible
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Chrcanovic, Bruno Ramos
Cameron, Andrew
Bakr, Mahmoud
Reher, Peter
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Abstract
AIMS: To evaluate the accuracy of tridimensional (3D) printed guide assisted flapless cortical bone micro-osteoperforations in the anterior mandible on a cadaver model. MATERIALS AND METHODS: Five human cadaver heads with complete dentition in the anterior mandible were used in this study. Pre-planning cone beam computed tomography (CBCT) and intraoral surface scans were obtained. After alignment, drilling sites in the interradicular areas were planned from canine to canine, and a surgical guide was printed. The drilling was performed and a post-procedure CBCT scan was obtained in order to assess the accuracy of the procedure in relation to the virtual planning. RESULTS: The mean±SD mesiodistal interradicular space was 2.67±0.84 mm. The mean±SD error of the actual drilled hole in comparison to the planned position of the mesial drill site was 0.66±0.33 mm and to the distal drill site 0.56±0.33 mm. There was a statistically significant difference between the number of times the teeth were hit mesially (10 out of 64 holes) and distally (none). CONCLUSIONS: The technique proposed in the current study, limited to ex vivo scenario, provides a valid and reliable method for mandibular micro-osteoperforations using a 3D generated surgical guide. However, risk of damaging adjacent radicular surfaces, particularly in areas with limited mesiodistal interradicular bone needs to be considered. Further studies should focus on using thinner drills, adding other methods to stabilize the guide. Additionally, by and selecting individuals and perforation sites with more mesiodistal interradicular bone less damage is likely.
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International Journal of Computerized Dentistry
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Subject
Dentistry
3D printing
Accuracy
Corticotomy
Guided surgery
Microosteoperforations
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Custódio, ALN; Chrcanovic, BR; Cameron, A; Bakr, M; Reher, P, Accuracy evaluation of 3D printed guide assisted flapless microosteoperforations in the anterior mandible, International Journal of Computerized Dentistry, 2022