Effect of hydrofluoric acid etching duration on shear bond strength of zirconia enhanced lithium silicate to enamel.

ABSTRACT:

Purpose

The 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.

Methods

Ninety-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

SUBMITTER: Yang B 

PROVIDER: S-EPMC12482464 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature