Accuracy of guided surgery using the silicon impression and digital impression method for the mandibular free end: a comparative study

Autor: Koudai Nagata, Kei Fuchigami, Noriyuki Hoshi, Mihoko Atsumi, Katsuhiko Kimoto, Hiromasa Kawana
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Implant Dentistry, Vol 7, Iss 1, Pp 1-8 (2021)
Druh dokumentu: article
ISSN: 2198-4034
DOI: 10.1186/s40729-020-00281-z
Popis: Abstract Background Implant treatment using guided surgery is becoming widespread in clinical dental practice. Furthermore, the development of digital technology has enabled the use of intraoral scanners (IOSs) to fabricate surgical guide plates. The objective of this study was to compare the accuracy of guided surgery using the silicone impression method with a three-dimensional (3D) scanner and the digital impression method with IOS for one side of the mandibular free end. In addition, we compared the accuracy of tooth-supported vs tooth/mucosa-supported surgical guide plates. Results The accuracy of the tooth-supported surgical guide plate using the new IOS method instead of the method of obtaining impressions with conventional silicone resulted in better measurements of 3D deviation at the crest, 3D deviation at the apex, and angular deviation. In terms of the accuracy of the tooth/mucosa-supported surgical guide plate, there were no significant differences in all measurements. The surgical guide plate using an IOS and the tooth/mucosa-supported surgical guide plate may enable more accurate guided surgery. Conclusion Tooth/mucosa-supported guided surgery involving preparation with an IOS may result in more accurate implant surgery.
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