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August 6, 2026BMC Oral HealthOpen Access

Tensile bond strength of soft and hard reline materials to conventional heat-polymerized, CAD-CAM milled, and 3D-printed denture base resins: an in vitro comparative study

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Authors

BSBurcu Akman SürücüEKEnder Kazazoğlu

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Overview

In vitro comparative study evaluates bond strength of reline materials with different denture bases, suggesting compatibility impacts clinical outcomes.

Key Points

  • This study aims to evaluate the tensile bond strength between soft and hard reline materials and different denture base resins fabricated by various methods.
  • Ninety specimens made from conventional heat-polymerized, CAD-CAM milled, and 3D-printed denture base resins were tested.
  • Three types of reline materials were used: two soft liners and one hard liner, with specimens stored in distilled water before testing.
  • Tensile bond strength was measured using a universal testing machine, and statistical analyses were conducted with ANOVA and Tukey tests.
  • The highest bond strength was 12.56 ± 2.21 MPa for Ufi Gel Hard C with conventional PMMA, while the lowest was 1.28 ± 0.16 MPa for GC Reline II Soft with 3D-printed resin.
  • Significant interactions indicated that bond strength varies with combinations of denture base and reline materials (p < 0.001).
  • 3D-printed groups showed higher adhesive failure rates, while conventional PMMA groups displayed more cohesive failures.

Cite This Study

Sürücü et al. (2026) studied this question.

synapsesocial.com/papers/6a743730764cddc9499d45dfhttps://doi.org/10.1186/s12903-026-09524-8
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of the Bonding Strength of Denture Base Materials Obtained by Different Manufacturing Methods to Reline Materials2025
  2. 2Comparison of surface properties, microhardness, and tensile bond strength of conventional, milled, and 3D-printed denture base materials: an in vitro study2026
  3. 3How Does the Bonding Strength of Reline Materials and Denture Teeth Vary Between 3D‐Printed and Milled Complete Denture Bases? A Systematic Review and Meta‐Analysis2025 · 4 citations
  4. 4Bond strength of relining materials to 3D-Printed denture base resins and the effects of aging, material chemistry, and surface treatments: a systematic review and meta-analysis2026 · 1 citations
  5. 5Effects of Relining Materials and Surface Treatments on Shear Bond Strength of 3D-Printed Dentures2026