Comparison of Presurgical Dental Models Manufactured with Two Different Three-Dimensional Printing Techniques.

Jacek Piskorowski,Marcin Metlerski,Aleksandra Jaroń,Mariusz Lipski,Grzegorz Trybek,Katarzyna Grocholewicz

doi:10.1155/2020/8893338

Jacek Piskorowski, Marcin Metlerski + Show 4 more

Open Access

https://doi.org/10.1155/2020/8893338

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Abstract

Three-dimensional printing is a rapidly developing area of technology and manufacturing in the field of oral surgery. The aim of this study was comparison of presurgical models made by two different types of three-dimensional (3D) printing technology. Digital reference models were printed 10 times using fused deposition modelling (FDM) and digital light processing (DLP) techniques. All 3D printed models were scanned using a technical scanner. The trueness, linear measurements, and printing time were evaluated. The diagnostic models were compared with the reference models using linear and mean deviation for trueness measurements with computer software. Paired t-tests were performed to compare the two types of 3D printing technology. A P value < 0.05 was considered statistically significant. For FDM printing, all average distances between the reference points were smaller than the corresponding distances measured on the reference model. For the DLP models, the average distances in the three measurements were smaller than the original. Only one average distance measurement was greater. The mean deviation for trueness was 0.1775 mm for the FDM group and 0.0861 mm for the DLP group. Mean printing time for a single model was 517.6 minutes in FDM technology and 285.3 minutes in DLP. This study confirms that presurgical models manufactured with FDM and DLP technologies are usable in oral surgery. Our findings will facilitate clinical decision-making regarding the best 3D printing technology to use when planning a surgical procedure.

Highlights

Academic Editor: Jacek Piskorowski ree-dimensional printing is a rapidly developing area of technology and manufacturing in the field of oral surgery. e aim of this study was comparison of presurgical models made by two different types of three-dimensional (3D) printing technology
For fused deposition modelling (FDM) printing, all average distances between the reference points were smaller than the corresponding distances measured on the reference model
Mean printing time for a single model was 517.6 minutes in FDM technology and 285.3 minutes in digital light processing (DLP). is study confirms that presurgical models manufactured with FDM and DLP technologies are usable in oral surgery

Summary

Materials and Methods

A monocentric study was conducted on 10 patients in whom an implantation procedure was planned. e exclusion criteria were toothlessness and the necessity to carry out augmentation procedure before the implantation. Four half-ball indices (diameter, 2.0 mm) were placed on all the models as reference points. E 3D diagnostic models in the DLP and FDM groups were compared with the reference models. E reference stl models were obtained by scanning the dental arches of the study participants using an intraoral scanner. Linear measurements were taken between the tips of the half-ball reference points, 1-2, 2-3, 3-4, and 1-4, respectively (see Figure 2). E mean deviation for trueness was automatically measured when the diagnostic models from each group were superimposed on the reference models using reference points.

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