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Effect of splinting scan bodies on trueness of complete-arch implant impression using different intraoral scanners: an in vitro study
Retana, L. ✉
;
Nejata, A.H.
;
Pozzi, A. [Pozzi, Alessandro (dental surgery), szerző]
Angol nyelvű Szakcikk (Folyóiratcikk) Tudományos
Megjelent:
INTERNATIONAL JOURNAL OF COMPUTERIZED DENTISTRY 1463-4201 1463-4201
26
(1)
pp. 19-28
2023
SJR Scopus - Dentistry (miscellaneous): Q1
Azonosítók
MTMT: 33859089
DOI:
10.3290/j.ijcd.b2599297
WoS:
001016362800003
Scopus:
85148772832
PubMed:
35072425
Aim: To evaluate the trueness of seven different intraoral scanners (IOSs) in making a completearch digital scan with and without splinting the scan bodies. Materials and methods: A polyurethane cast of an edentu lous mandible with four dental implant analogs was pre pared. A reference scan was made using a laboratory scan ner. The reference model was scanned with each of the seven investigated IOSs (control groups, n = 10 per scanner), and scanned again after splinting the scan bodies (study groups, n = 10 per scanner). Each scan was exported as a standard tessellation language (STL) file and transferred to a compre hensive metrology software program (Geomagic Control X). In order to measure the trueness, four points (A, B, C, and D) were determined on the scan bodies, and the distance between point A and the other points (DAB, DAC, and DAD) was measured. The measurements were tested for normality using the KolmogorovSmirnov test and probability plots. Trueness was compared using threeway analysis of variance (ANOVA), and pairwise comparisons were performed using the post hoc Tukey and paired sample t tests. Statistical analyses were twosided, and the significance level was set at 5%. Results: Splinting the scan bodies improved the trueness values of the digital scans, while increasing the interimplant distance decreased them. A significant association was found between the trueness values and all three tested vari ables, including splinting the scan bodies, type of IOS, and interimplant distance (P < 0.001). Conclusion: Based on the present findings, splinting the scan bodies can improve the trueness of completearch digi tal implant scans due to the improvement in morphologic landmarks by the stitching process, regardless of the type of IOS or the interimplant distance. (Int J Comput Dent 2023;26(1): 19–28; doi: 10.3290/j.ijcd.b2599297) © 2023, Quintessenz Verlags-GmbH
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2025-02-14 12:16
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