The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study)
Madboly, M., El mahallawy, O., Nabil, O. (2025). The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study). EKB Journal Management System, 71(2), 1637-1645. doi: 10.21608/edj.2025.371310.3428
Mariem Sherif Madboly; Omaima El mahallawy; Omnia Nabil. "The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study)". EKB Journal Management System, 71, 2, 2025, 1637-1645. doi: 10.21608/edj.2025.371310.3428
Madboly, M., El mahallawy, O., Nabil, O. (2025). 'The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study)', EKB Journal Management System, 71(2), pp. 1637-1645. doi: 10.21608/edj.2025.371310.3428
Madboly, M., El mahallawy, O., Nabil, O. The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study). EKB Journal Management System, 2025; 71(2): 1637-1645. doi: 10.21608/edj.2025.371310.3428

The Effect of Anterior Span Length on the Accuracy of Intraoral Scanner (an In-vitro study)

Egyptian Dental Journal
Volume 71, Issue 2 - Serial Number 4, April 2025, Page 1637-1645  XML PDF (1.26 MB)
Document Type: Original Article
DOI: 10.21608/edj.2025.371310.3428
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Authors
Mariem Sherif Madboly email orcid 1; Omaima El mahallawyorcid 1; Omnia Nabilorcid 2
1Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University.
2Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University. Division of Fixed Prosthodontics, School of Dentistry, Newgiza University
Abstract
Purpose: This study aimed to evaluate the effect of anterior span length on the accuracy of the intraoral scanner.
Methodology: One model was used to represent two anterior bridge span lengths. One group had missing upper central incisors representing short-span length, and the other had missing upper central incisors and lateral incisors representing long-span. A laboratory scanner (inEos X5) obtained a scan to act as a reference. For each group, five scans were obtained by the intraoral scanner (CEREC Primescan). The data set from the intraoral scans was superimposed on the reference scan using reverse engineering software to determine the trueness. Regarding precision measurement, the five scans taken by the intraoral scanner were superimposed on each other. Comparison between short and long-span edentulous areas was performed using Wilcoxon signed rank.
Results: There was no statistically significant difference between the different span lengths, long span (0.12 ± 0.107 mm) was insignificantly higher than the short span (0.082 ±0.04 mm) as P=0.22. Regarding precision, the long span (0.07 ± 0.07 mm) was insignificantly lower than the short span (0.082 ±0.04 mm) as P=0.57.
Conclusion: The intraoral scanner showed high trueness and precision in both long and short spans.
Keywords
Span length; Trueness; Precision
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