Şentürk Ayben, Akat Bora, Gönüldaş Fehmi, Halaçlı Onur Alp, Kartal Selin, Kılıçarslan Mehmet Ali
Faculty of Dentistry, Prosthetic Dentistry, Ankara University, 06500 Ankara, Turkey.
Prosthetic Dentistry Program, Graduate School of Health Sciences, Ankara University, 06500 Ankara, Turkey.
J Funct Biomater. 2025 Sep 21;16(9):355. doi: 10.3390/jfb16090355.
This in vitro study aimed to evaluate and compare the shear bond strength (SBS) between monolithic zirconia (MZ) and different core build-up materials. Sixty cylindrical MZ specimens were fabricated and divided into three groups ( = 20) based on the type of core build-up material: nanohybrid composite resin (NHCR), glass ionomer cement (GIC), and zirconia-reinforced glass ionomer cement (zirconomer). All specimens were subjected to airborne-particle abrasion with aluminum oxide and bonded using a self-adhesive dual-cure resin cement. After 24 h of storage in distilled water at 37 °C, SBS testing was performed using a universal testing machine. Failure modes were examined under a stereomicroscope and classified as adhesive, cohesive, or mixed. The NHCR group exhibited the highest SBS values (48.32 ± 12.49 MPa), followed by the Zirkonomer group (14.19 ± 3.66 MPa), and the GIC group (10.37 ± 4.21 MPa). The SBS of NHCR was significantly higher than that of both Zirconomer and GIC ( < 0.001). Although no significant difference was found between Zirconomer and GIC, Zirconomer demonstrated higher mean bond strength. Within the limitations of this study, NHCR showed the highest bond strength to monolithic zirconia. Zirconomer performed better than conventional GIC; however, further investigations involving different surface treatments and long-term clinical conditions are recommended to enhance its bonding efficacy.
本体外研究旨在评估和比较整体式氧化锆（MZ）与不同核材料之间的剪切粘结强度（SBS）。制作了60个圆柱形MZ试件，并根据核材料类型分为三组（每组 = 20个）：纳米混合复合树脂（NHCR）、玻璃离子水门汀（GIC）和氧化锆增强玻璃离子水门汀（氧化锆聚羧酸锌水门汀）。所有试件均用氧化铝进行空气颗粒喷砂处理，并使用自粘性双固化树脂水门汀进行粘结。在37℃蒸馏水中储存24小时后，使用万能试验机进行SBS测试。在体视显微镜下检查破坏模式，并分为粘结破坏、内聚破坏或混合破坏。NHCR组的SBS值最高（48.32±12.49MPa），其次是氧化锆聚羧酸锌水门汀组（14.19±3.66MPa）和GIC组（10.37±4.21MPa）。NHCR的SBS显著高于氧化锆聚羧酸锌水门汀和GIC（<0.001）。虽然氧化锆聚羧酸锌水门汀和GIC之间未发现显著差异，但氧化锆聚羧酸锌水门汀显示出更高的平均粘结强度。在本研究的局限性内，NHCR对整体式氧化锆的粘结强度最高。氧化锆聚羧酸锌水门汀的性能优于传统GIC；然而，建议进行涉及不同表面处理和长期临床条件的进一步研究，以提高其粘结效果。
