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  11. Biomechanical And Physical Characteristics Of Dental Dam Sheets Used For Absolute Isolation

Biomechanical and Physical Characteristics of Dental Dam Sheets Used for Absolute Isolation

Mit Lozada1, Pcb Junqueira2, Aka Rondón3

  • 1Maribí Isomar Terán Lozada, DDS, MSc, PhD student, School of Dentistry, Federal University of Uberlândia, Minas Gerais, Brazil; University of Los Andes, Mérida, Venezuela.

Operative Dentistry
|October 17, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Dental dam sheets show varied mechanical properties, with most suitable for clinical use despite lack of standardization. Cost showed little correlation with performance, suggesting value beyond price.

Area of Science:

  • Dental materials science
  • Polymer science
  • Biomaterials engineering

Background:

  • Dental dams are crucial for absolute isolation during dental procedures.
  • Variability in dental dam properties may impact clinical efficacy and patient safety.
  • Standardization of mechanical and physical properties is essential for reliable performance.

Purpose of the Study:

  • To evaluate the mechanical and physical properties of various dental dam sheets.
  • To correlate mechanical parameters (UTS, RF, elongation) with material cost.
  • To assess the structural integrity and composition of dental dam materials.

Main Methods:

  • Tested 21 dental dam sheets for thickness, rupture force (RF), elongation, and ultimate tensile strength (UTS).
  • Utilized digital micrometer, universal testing machine, SEM, and X-ray energy dispersive spectroscopy.

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  • Measured radiopacity and analyzed data using ANOVA and Tukey's test.

    • Main Results:

    • Significant variations in thickness, RF, elongation, and UTS were observed across different brands.
    • Flexidam exhibited the greatest thickness (0.5 mm), while Bassi showed the highest UTS (15 MPa).
    • Non-latex Sanctuary dam achieved the highest elongation (600 mm); structural integrity issues noted in some Sanctuary variants.

    Conclusions:

    • Substantial variation in mechanical properties indicates a lack of standardization in dental dam sheets.
    • Most tested dental dams possess adequate properties for clinical application.
    • No significant correlation was found between cost and mechanical performance.