Authors
Islam E Ali, Yoshiya Hirata, Yuka Sumita, Hidekazu Takahashi, Harunori Gomi
Published in
Journal of prosthodontic research. Oct 23, 2026. Epub Oct 23, 2026.
Abstract
To investigate the initial 24-h tensile bond strength (TBS) between polyether ether ketone (PEEK) and three resilient denture liners (RDLs) after different surface treatments.
The TBSs of two silicone RDLs (Reline II Soft [RL] and Sofreliner Tough Supersoft [ST]) and one methyl methacrylate RDL, Denture Liner [DL], on PEEK were evaluated. Square PEEK plates (n=240) were prepared and polished with #2000 SiC paper. Surface treatments included control (C; no treatment), sandblasting (SB) with 50-µm alumina powder, manufacturer-provided primer application (P), and SB + P. Ten specimens for each condition were prepared by sandwiching the RDL between two PEEK plates. TBS after 24-h water storage at 37°C was measured, and failure modes were recorded. Median TBS values were statistically analyzed.
Significant differences in TBS were found among RDLs within each surface treatment (P < 0.01) and among surface treatments within each RDL (P < 0.001). Median TBSs of C were 0.30, 0.17, and 0.73 MPa for RL, ST, and DL, respectively. SB and P increased median TBS, especially SB for DL (2.12 MPa) and P for RL (1.84 MPa) and ST (1.37 MPa). SB + P had the highest median TBSs regardless of material (1.64-2.55 MPa). All fracture surfaces showed adhesive failure except RL and ST treated with P and SB + P, which showed mixed and cohesive failures, respectively.
Initial TBSs varied with RDLs and surface treatments. P was more effective for silicone materials, whereas SB was more effective for the methyl methacrylate material.
PMID:
42927898
Bibliographic data and abstract were imported from PubMed on 26 Oct 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 19
- Comments 0