The effect of cavity depth on accuracy of intraoral scanners in intra-coronal restorations

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dc.authorid0000-0003-3121-360X
dc.authorid0000-0002-3320-9244
dc.authorid0000-0002-3116-2016
dc.authorid0000-0002-4080-7744
dc.contributor.authorOzden, Yunus Emre
dc.contributor.authorKaya, Bengu Dogu
dc.contributor.authorAkbal, Cagla
dc.contributor.authorYilmaz Atali, Pinar
dc.contributor.authorOzkurt-Kayahan, Zeynep
dc.date.accessioned2026-02-03T12:00:30Z
dc.date.available2026-02-03T12:00:30Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPurpose This study aimed to evaluate the effect of cavity depth on the accuracy of intraoral scanners (IOS) in intra-coronal restorations, focusing on trueness and precision as defined by International Organization for Standardization (ISO) 5725 standards. Materials and methods Three intra-coronal cavity designs with depths of 2.5 mm (n = 10), 5 mm (n = 10), and 7.5 mm (n = 10) were fabricated using 3-Dimentional (3D) printed tooth models. Scans (n = 30) were performed using the Trios 3 intraoral scanner, and accuracy was assessed by comparing scanned models to reference models. Trueness was measured as the root mean square (RMS) deviation, and precision was calculated from the interquartile range of average absolute distances. Statistical analyses were conducted using the Kruskal-Wallis test and Mann-Whitney U test with Bonferroni correction. Results The accuracy of the IOS was significantly lower at a cavity depth of 7.5 mm compared to 5 mm and 2.5 mm (p < 0.05). RMS values were highest for the 7.5 mm depth, while the lowest precision was observed at this depth. Conclusion Cavity depth significantly affects the accuracy of IOS in intra-coronal restorations, with deeper cavities resulting in reduced accuracy. This highlights the importance of considering cavity depth when planning IOS workflows. This study shows that scanning accuracy decreases when the distance between the cavity floor and the cusp tip exceeds 5 mm. Elevating the cavity floor with direct methods may help improve scanning accuracy and enhance restoration outcomes.
dc.identifier.doi10.1186/s12903-025-06556-4
dc.identifier.issn1472-6831
dc.identifier.issue1
dc.identifier.pmid40665247
dc.identifier.scopus2-s2.0-105010704766
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1186/s12903-025-06556-4
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34631
dc.identifier.volume25
dc.identifier.wosWOS:001529654500009
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherBmc
dc.relation.ispartofBmc Oral Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjectCavity depth
dc.subjectIntra-coronal restorations
dc.subjectIntraoral scanner accuracy
dc.titleThe effect of cavity depth on accuracy of intraoral scanners in intra-coronal restorations
dc.typeArticle

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