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Accuracy of 6 Desktop 3D Printers in Dentistry: A Comparative In Vitro Study.
F G Mangano1, O Admakin1, M Bonacina2
1Department of Prevention and Communal Dentistry, Sechenov First Moscow State Medical University, 119992 Moscow, Russia.
Summary
Six desktop 3D printers were evaluated for accuracy in creating dental models. While generally reliable for clinical use, significant dimensional differences and contraction over time were observed among the printers.
Area of Science:
- Biomaterials Science
- Dental Technology
- Manufacturing Engineering
Background:
- 3D printing is increasingly utilized in dentistry for creating dental models.
- Evaluating the accuracy and reliability of different desktop 3D printers is crucial for clinical applications.
Purpose of the Study:
- To compare the accuracy of six different desktop 3D printers in dentistry.
- To assess the dimensional stability and trueness of 3D printed dental models over time.
Main Methods:
- Six desktop 3D printers were used to print parallelepipeds and dentate models with proprietary materials.
- Dimensional analysis was performed using optical microscopy and precision probing.
- Trueness was investigated by scanning printed dentate models after one month and comparing them to virtual reference models.
Main Results:
- 3D printed models demonstrated reliability compatible with clinical use.
- Statistically significant differences in linear and diameter measurements were found between the printers.
- Dental models exhibited low trueness after one month, indicating dimensional contraction, with variations among printers.
Conclusions:
- Desktop 3D printed dental models exhibit acceptable accuracy.
- Significant variations in accuracy exist among different desktop 3D printing technologies.
- Long-term dimensional stability requires further investigation for clinical predictability.
