Publications by authors named "Ghada A Alian"

Article Synopsis
  • The study aimed to evaluate the micro tensile bond strength (µTBS) of two resin matrix ceramic blocks, Vita Enamic and Lava Ultimate, when bonded to composite resin under different surface treatments and with or without chewing simulation.
  • Four surface treatment groups were tested for their effects on bond strength, with bur grinding + silane showing the best results for Lava Ultimate and HF acid + silane performing well for Vita Enamic.
  • Findings revealed that Lava Ultimate had higher bond strength than Vita Enamic across all treatments, and chewing simulation significantly weakened the bond strength, suggesting that bur grinding + silane is a reliable repair method for these materials.
View Article and Find Full Text PDF

Objectives: This study investigated the impact of using γ-methacryloxypropyl trimethoxy silane (MPS) for surface silanization of poly (urea-formaldehyde) (PUF) microcapsules which enclose a healing liquid of "triethylene glycol dimethacrylate (TEGDMA) and N,N dihydroxyethyl-p-toluidine (DHEPT)" on some mechanical properties of an experimental dental composite as well as its self-healing efficiency.

Methods: Synthesis of PUF microcapsules was done via in situ polymerization, followed by silanization with MPS silane. Silanized and non-silanized microcapsules were incorporated into a composite containing 30% polymer matrix and 70% fillers at different weight percentages (0%, 5%, 7.

View Article and Find Full Text PDF

Background: The study aimed to evaluate the influence of various beverages; with and without brushing; on the surface mechanical properties of two resin composites.

Methods: A total of 160 disc-shaped specimens were prepared for each of the following dental composites; nanohybrid ormocer (Admira fusion, VOCO GmbH, Cuxhaven, Germany) and nanohybrid resin composite (Grandio, VOCO GmbH, Cuxhaven, Germany). The baseline surface hardness and roughness measurements were carried out after 24 h.

View Article and Find Full Text PDF

Background: This study aimed to assess the impact of theobromine and casein phospho-peptides/amorphous calcium phosphate with fluoride (CPP-ACPF) on the resin-dentine bond strength, microhardness, and dentine morphology.

Methods: A total of 18 sound human molars for micro-tensile bond strength (µTBS), 20 sound human premolars for microhardness, and 30 premolars for Scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX) were used. Based on the pre-treatment used, teeth were split into six groups; sound dentine, demineralized dentine, and demineralized dentine treated with theobromine (Sigma Aldrich) and MI paste plus (GC International, USA) for two-time intervals; 5 min and 1 month.

View Article and Find Full Text PDF