20.500.12556/DiRROS-29441 Effects of airborne-particle abrasion and zirconia composition on porcelain–zirconia bond strength Porcelain chipping in zirconia-based dental restorations remains a major clinical complication. This study evaluated the effects of airborne-particle abrasion (APA) and yttria content in zirconia on porcelain–zirconia bond strength. Six groups were tested: low-translucency (3Y-TZP) and high-translucency zirconia (4Y-TZP), each with or without APA, and APA-treated Co–Cr and Ti–6Al–4V alloys as metal–ceramic references. Bond strength was assessed using the Schwickerath test. Interfacial structure and mechanical properties were analyzed by scanning and transmission electron microscopy and nanoindentation. APA significantly increased zirconia surface roughness but did not improve bond strength. Zirconia composition had no effect on porcelain bonding. Bond strength values for porcelain-zirconia (34.0–40.6 MPa) were comparable to those of metal–ceramic systems, lower than Co–Cr (45.5 MPa) but similar to Ti–6Al–4V (37.3 MPa). Microscopy and nanoindentation revealed sharp zirconia–porcelain interfaces with pronounced mechanical mismatch and yttrium segregation at grain boundaries. airborne-particle abrasion Yttria-stabilized zirconia (Y-TZP) zirconia-based ceramics zrak abrazija delcev keramika cirkonij true false true Elsevier Nizozemska Angleški jezik Slovenski jezik © 2026 The Authors. Neznano 2026-05-19 13:59:01 2026-05-19 13:59:01 2026-05-20 03:45:53 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Opis vira z dne 14. 5. 2026; str. 1-28 Vol. , [article no.] 100980 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-03-20 2026-05-12 2026-05-18 620.1/.2 2666-5395 10.1016/j.oceram.2026.100980 278157059 https://www.sciencedirect.com/science/article/pii/S2666539526000763 1 2347f0a5-537a-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44143 RAZ_Antanasova_Maja_2026.pdf RAZ_Antanasova_Maja_2026.pdf 1 27164D3131C4854FC77300E1518150F7 1b3d951314068268fa381ca7965144e9613bf05a2a6f7e718e14d849daa88c5d 55768231-537b-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44144 Institut Jožef Stefan 0 0 0