IADR Abstract Archives

Comparative Study: Evaluating Intraoral Scanning Systems for Subgingival Anatomy

Objectives: This study conducted a comprehensive comparative analysis of three intraoral scanners (CEREC Primescan, TRIOS, CEREC Omnicam) and a lab scanner (inEosX5) assessing their precision in simulating subgingival tooth preparations
Methods: Utilizing a dental simulation mannequin with a 3D-printed Teflon structure, 100 structures with depths ranging from 0.5 to 4.0 mm were created within a square mimicking a rectangular tank surface. Four scanner groups (A-D) and five subgroups were established. Two digitization methods, a customized parallelometer and an intraoral simulation, were applied, ensuring a standardized scanning sequence. Trueness was evaluated by comparing CAD-calculated surface areas with actual dimensions, and qualitative trueness analysis was conducted using MeshLab. Surface areas were computed using the formula SA = 2lw + 2lh + 2wh. Statistical analyses, including Pearson’s correlation coefficient, Kolmogorov–Smirnoff and Levene’s tests, three-way ANOVA, and paired sample t-tests, elucidated relationships and differences (a=0.05).
Results: A robust correlation (r = 0.850, p < 0.001) between intraoral scanner choice and scanned area depth was found. Inverse correlations were noted for experimental methods. Three-way ANOVA demonstrated significant scanner-depth interaction (F(12,760) = 760.801, p < 0.001).
Conclusions: Emphasizing high-resolution sensors and advanced technologies, the study underscores the optimal choice for subgingival digitization, acknowledging variations among scanners.

2024 Continental European and Scandinavian Divisions Meeting (Geneva, Switzerland)
Geneva, Switzerland
2024
0126
Digital Dentistry Research Network
  • Mourouzis, Petros  ( Aistotle University of Thessaloniki , Thessaloniki , Greece )
  • Dionysopoulos, Dimitrios  ( Aristotle University of Thessaloniki , Thessaloniki , Greece )
  • Gogos, Christos  ( Aristotle University of Thessaloniki , Thessaloniki , Greece )
  • Tolidis, Kosmas  ( Aristotle University of Thessaloniki , Thessaloniki , Greece )
  • NONE
    Oral Session
    Oral 4 - Digital Dentistry Research Network
    Thursday, 09/12/2024 , 10:30AM - 12:30PM
    Technical characteristics of the scanners systems used.
    GroupAcquisition TechnologyPowderingSoftware versionManufacturer
    PrimescanHigh-resolution sensors and short wave light with optical high frequency contrast analysis for Dynamic Deep ScanNo powderCEREC 5.1.8Dentsply Sirona
    Trios 3Confocal microscopy ultrafast optical sectioningNo powderTRIOS Design studio 2022.13Shape A/S
    OmnicamActive triangulation (multicolor stripe projection)No powderCEREC 5.1.8Dentsply Sirona
    inEos X5Digital light stripe projectionYesinLab 22.2.0Dentsply Sirona