RT Journal Article
T1 Accuracy of surgical guides manufactured with four different 3D printers. A comparative in vitro study
A1 Morón Conejo, Belén
A1 Berrendero Dávila, Santiago
A1 Salido Rodríguez-Manzaneque, María Paz
A1 Zarauz, Cristina
A1 Pradíes Ramiro, Guillermo Jesús
AB Objectives: The aim of this study was to assess the accuracy of surgical guides manufactured with four different 3D printers..Methods: Forty-eight surgical guides (BlueSky Plan, BlueSky Bio) were produced using four different 3D printers, with strict adherence to each manufacturer's instructions. The printers used were three digital light processing (DLP) printers (SolFlex170, VC; Nextdent5100, ND, and D30+Rapidshape, RS) and one stereolithographic (SLA) printer (Formlabs3B+, FL). The study evaluated the trueness and precision of the overall surface, the region of interest (RoI) (occlusal and guide zone), the repeatability in several batches, and the guide hole's diameter and xyz axes. The printed guides were digitized and compared with the CAD design control specimen (Control X, Geomagic). Descriptive statistics and Kruskal-Wallis tests with post-hoc Mann-Whitney tests were performed (α=0.05).Results: Differences in trueness and precision were found between groups in the overall zone and RoI (p = 0.00). The ND group demonstrated the highest repeatability. Only the RS group exhibited a comparable guide hole diameter to the master specimen (5.27±2.12 mm; p = 0.104). No statistical differences were observed between groups in the x and z axes. However, in the y-axis, the VC group displayed statistically significant differences (p = 0.01).Conclusions: The results showed that the DLP groups had better overall accuracy, while the SLA group had the best results in the RoI. The manufacturer's workflows demonstrated a high reproducibility between batches in the RoI. The RS group had values most similar values to the guide hole diameter of the master specimen, with minimal deviations in guide hole orientation.
PB Elsevier
SN 0300-5712
YR 2024
FD 2024-07-04
LK https://hdl.handle.net/20.500.14352/126369
UL https://hdl.handle.net/20.500.14352/126369
LA eng
NO Morón-Conejo B, Berrendero S, Salido MP, Zarauz C, Pradíes G. Accuracy of surgical guides manufactured with four different 3D printers. A comparative in vitro study. J Dent. 2024 Sep;148:105226. doi: 10.1016/j.jdent.2024.105226
DS Docta Complutense
RD 31 dic 2025