ArticleThe journal of advanced prosthodontics2026
Effect of scan body geometric configuration and library design on digital implant impression accuracy.
Article in The journal of advanced prosthodontics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe purpose of this MATERIALS AND
methodsNine scan body geometries were fabricated by combining three body heights (4, 5, and 6 mm) with three FIS lengths (1, 2, and 3 mm). Digital impressions were superimposed onto truncated or full-geometry library files. Linear deviation (ΔD) and angular deviation (ΔA) were calculated by comparing aligned scan bodies with coordinate measuring machine references. Linear and angular deviations were compared between library types using the Mann-Whitney U test, and differences among body heights and FIS lengths were evaluated using the Kruskal-Wallis test with Dunn's post-hoc test (α = .05).
resultsLinear deviation remained within a comparable range, and most geometry-library comparisons did not show a significant difference from body height, FIS length, or library morphology (
conclusionDigital implant registration remained stable across most configurations. Shortened scan bodies performed reliably when FIS dimensions were preserved. Angular accuracy was more sensitive to geometry-library interactions, with truncated libraries improving stability.
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