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Accuracy Analysis With Surgical Guides When Different 3D Printing Technologies Are Used

Yeager, Brandon Jeffrey
http://rave.ohiolink.edu/etdc/view?acc_num=osu1658228569185547

Abstract Details

2022, Master of Science, Ohio State University, Dentistry.
Objectives: The purpose of this in vitro study was to evaluate the fabrication and seating accuracy of surgical guides fabricated by using 3 different types of 3D printing technologies. Methods: Twenty-one identical polyurethane models were divided into 3 groups and used to plan implants and design surgical guides using digital software. Twenty-one surgical guides were fabricated using 3 different 3D printing technologies: digital light processing (DLP), stereolithography (SLA), and continuous liquid interface printing (CLIP)(n=7). A digital scan of the printed surgical guide was made with an intraoral scanner and the scan file was compared to the CAD file to analyze the fabrication accuracy. Accuracy was evaluated on the internal cameo seating surface as well as the overall external surface of the surgical guide. Then, the triple scan protocol was used to evaluate the seating accuracy of the guides on their respective models. A metrology grade superimposition software was used to calculate accuracy. Results: Overall there was a statistically significant interaction between the 3D printer and the accuracy of the guide compared to the CAD file (p<.001). The trueness of the surgical guides was significantly different for the internal cameo surface but not for the overall external surface of the surgical guide. SLA had the lowest mean RMS deviation (59.04μm) for internal surface of the guide while CLIP had the highest mean RMS (117.14μm). CLIP had the lowest mean RMS (82.25μm) for the overall external surface of the guide while DLP had the highest mean RMS (91.00μm). SLA and DLP seating accuracy was not significantly different (p=1.000) but, both had significantly lower mean RMS values than CLIP (p=0.003, p=0.014). All 3D printing technologies had low variability amongst measured deviations and therefore were similarly precise. Conclusions: Overall, the 3D printers tested produced precise surgical guides. However, 3D printing technology effected printing trueness. SLA printers produced higher printing trueness on the internal seating surface of the guide. CLIP printers produced higher printing trueness on the overall external surface of the guide. SLA and DLP printers had more accurate seating than CLIP. Clinicians may prefer SLA printers for fabrication of surgical guides due to their high level of printing and seating accuracy as well as their low cost compared to other technologies.
Damian Lee (Advisor)
Lisa Lang (Committee Member)
Fengyuan Zheng (Committee Member)
Burak Yilmaz (Advisor)
69 p.
Dentistry
3D printer 3D printing Surgical guide Surgical guides DLP SLA CLIP Implant Accuracy

Recommended Citations

Citations

  • Yeager, B. J. (2022). Accuracy Analysis With Surgical Guides When Different 3D Printing Technologies Are Used [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1658228569185547

    APA Style (7th edition)

  • Yeager, Brandon. Accuracy Analysis With Surgical Guides When Different 3D Printing Technologies Are Used. 2022. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1658228569185547.

    MLA Style (8th edition)

  • Yeager, Brandon. "Accuracy Analysis With Surgical Guides When Different 3D Printing Technologies Are Used." Master's thesis, Ohio State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=osu1658228569185547

    Chicago Manual of Style (17th edition)

osu1658228569185547
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This open access ETD is published by The Ohio State University and OhioLINK.