ArticleMedical science monitor : international medical journal of experimental and clinical research2025
In Vitro Assessment of Linear Dimensional Accuracy of Polyvinyl Siloxane-Based Computer-Aided Design and Transparent Interocclusal Record Materials at 3 Different Storage Times.
Article in Medical science monitor : international medical journal of experimental and clinical research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
Corrections and comments
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND Recent interocclusal registration (IOR) materials require scientific data that verify manufacturer claims of using them for an extended period. This study aimed to evaluate the time-dependent (1, 3, 7 days) linear accuracy of polyvinyl siloxane (PVS)-based computer-aided design (CAD) and transparent IOR materials. MATERIAL AND METHODS Three commercial brands of CAD and transparent PVS-based IOR materials were divided into 24 groups based on time intervals of 1 h and 1, 3, and 7 days, with the 1 h subgroup serving as control. A total of 360 IOR specimens (n=15 each group) were standardized following modified ADA specification 19. Using horizontal distances between 2 perpendicular intersecting lines at 3 different locations, linear measurements were observed under stereomicroscope. Derived mean values were tested for group differences using one-way ANOVA and within-group differences using the Tukey-Kramer test. Statistical significance was determined at P value ≤0.05. RESULTS Mean linear dimensions varied in the range of -0.06 (-0.24%) to -0.15 (-0.60%) mm and -0.06 (0.24%) to -0.10 (0.40%) mm for CAD and transparent IOR materials, respectively. Virtual CADBite and Maxill Bite showed least linear discrepancy at 1 h, but both showed significant changes at 7 days. Flexitime Bite (CAD) was the only material that showed linear accuracy (0.13 to 0.15, -0.52% to 0.60%) beyond the clinically acceptable threshold. CONCLUSIONS All materials showed a reduction in linear dimensions, indicating linear shrinkage within specimens. All IOR materials except Flexitime Bite (CAD) were clinically accurate till 7 days. Virtual CADBite and Maxill Bite showed significant changes between 1 h and 7 days.
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