Introduction This study aimed to assess the effect of slice thickness of 3D printer in fabrication of surgical guide (SG) on the accuracy of dental implant placement. Materials and Methods After preparation of two dry human mandibles, Cone-beam computed tomography (CBCT) scans were obtained, and the location and direction of implants in the edentulous ridge of the mandible were identified using Romexis software. Data in STL format were transferred to a 3D printer and two SGs with 50 µm and 100 µm thicknesses were fabricated for each mandible. Drilling was performed using two SGs. The pre- and post-intervention CBCT scans were superimposed to measure the magnitude of differences. The two groups were compared using the Mann-Whitney U test. Results No significant difference was noted in SGs with 50 and 100 µm thicknesses in the coronal and apical regions of the implants or the depth of drilling. However, the difference in angular deviation was statistically significant. Conclusion Considering the higher accuracy of SGs with 50 µm thickness (despite the presence of a significant difference in AD between the SGs with different thicknesses), it is recommended to use a SG with 50 µm thickness in cases where anatomical limitations exist.
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Research Article|
April 06 2023
Effect of slice thickness of 3D printer in fabrication of surgical guide on the accuracy of dental implant placement
faeze mirjalili
faeze mirjalili
Kashan University of Medical Sciences
Oral and maxillofacial radiology
Ravand street
IRAN, ISLAMIC REPUBLIC OF
kashan
kashan
8715981151
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J Oral Implantol (2023)
Article history
Received:
August 30 2021
Revision Received:
December 22 2021
Revision Received:
June 23 2022
Revision Received:
October 10 2022
Accepted:
November 06 2022
Citation
Mehrdad Panjnoush, Yasaman Kheirandish, Reza Sharifi, faeze mirjalili; Effect of slice thickness of 3D printer in fabrication of surgical guide on the accuracy of dental implant placement. J Oral Implantol 2023; doi: https://doi.org/10.1563/aaid-joi-D-21-00179
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