ArticleBMC oral health2025
Effect of hydrofluoric acid etching duration on shear bond strength of zirconia enhanced lithium silicate to enamel.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Effect of orthodontic bracket bonding on the surface roughness of e.max glass ceramics: an in vitro study.BMC oral health · 2026Article
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Authors and funding
5 authors.
Funding
Abstract
purposeThe aim of this study was to evaluate the effect of hydrofluoric acid (HF) etching duration on the shear bond strength between zirconia-enhanced lithium silicate (ZLS) and enamel.
methodsNinety-six extracted human third molars and premolars were used and randomly divided into six groups (n=16). The teeth were sectioned to produce specimens from the buccal and lingual surfaces, polished to achieve smooth bonding areas of 3×3 mm. The ceramic materials used (Celtra Duo, IPS e.max Press) were prepared into 3×3×3 mm blocks, with surfaces treated with or without 4.9% HF for varying durations. Representative specimens from each group were analyzed using field-emission scanning electron microscopy (SEM) to assess etching-induced surface morphology. Silane coupling agent and luting resin (RelyX
resultsAs etching time increases, the dissolution of ceramic components on the ZLS surface also rises. After 24 hours or 6 months of storage in water at 37°C, the shear bond strength of ZLS etched with 4.9% HF for 40 seconds was significantly greater than that of Lithium disilicate (LS
conclusionHF etching duration has a significant effect on the surface morphology of ZLS and the shear bond strength with enamel. ZLS etched with 4.9% HF for 40 seconds demonstrated the highest shear bond strength, highlighting the importance of optimal etching time for enhancing bonding performance.
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