open access

https://hdl.handle.net/2115/97917

Evaluation of long-term bond strength and mechanical properties of a recently launched light-cure resin cement for veneer cementation

英語

Nanocluster

2025-03-21

Springer

Clinical oral investigations

29(4)

199

Objectives: This study aimed to evaluate the initial and six-month bonding performance and mechanical properties of a recently launched light-cure resin cement compared to light-cure, dual-cure resin cements, and resin composite used for veneer cementation. Materials and methods: Four luting cements-Panavia Veneer LC (PVL), Variolink Esthetic LC (VEL), Panavia V5 (PV5), and Clearfil AP-X (APX)-were tested for microtensile bond strength (mu TBS), Knoop hardness (KHN), degree of conversion (DC), and ultimate tensile strength (UTS) at 24-hour and 6-month. All values were subjected to statistical analysis (alpha = 0.05). Fracture mode and resin-dentin interfaces were observed via SEM. Results: One-way ANOVA revealed significant differences among the materials for each measured property at 24-hour and 6-month (p < 0.001). The PVL group demonstrated superior bond strength at both time points (24-hour: 58.72 MPa; 6-month: 59.13 MPa), comparable to APX. In contrast, the VEL group showed a significant decrease in mu TBS from 24-hour (27.62 MPa) to 6-month (10.65 MPa) (p < 0.001). The dual-cure cement PV5 showed marked improvements in mu TBS and mechanical properties beyond 24 h (p < 0.001). KHN and UTS were highest in APX. PVL and APX had higher DC values than VEL and PV5. SEM revealed variations in resin-dentin interfaces across the groups. Conclusions: PVL demonstrated reliable and durable bonding performance, while PV5 showed improvements after 24 h, suggesting the need for extended curing time for optimal performance. Clinical relevance: PVL provides durable bonding and mechanical performance, making it a promising option for veneer cementation in clinical practice.

学術雑誌論文

Accepted Manuscript

This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00784-025-06269-6

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