The Effect of Aging and Surface treatments on Micro-shear Bond Strength of Resin Nano-Ceramic Material Using Two Resin Cements
Journal Title: Journal of Dentistry and Oral Sciences - Year 2020, Vol 2, Issue 1
Abstract
Purpose: To evaluate the effect of aging and different surface treatments on micro-shear bond strength of two resin cements to resin nano-ceramic composite blocks using an in-vitro study. Materials and methods: Blocks of resin nano-ceramic (Lava Ultimate, 3M, St Paul, Minnesota, USA) were used to prepare eight plates having the following dimensions: (14mm × 12mm - 2mm). After plates preparation they were assigned to two main groups according to the surface treatment applied, either hydrofluoric acid etching and silane or sandblasting and silane. Scanning electron microscope (SEM) was used to analyze the surface topography of the Lava-Ultimate plates before and after application of surface treatments. Two resin cements were used; dual cured adhesive resin cement (Bifix QM, VOCO, Cuxhafen, Germany) and dual cured self-adhesive resin cement (Bifix SE, VOCO, Cuxhafen, Germany) to create a five resin micro-cylinders received on each lava ultimate plate. Ten specimens from each subgroup were tested after 24 hours and the other ten specimens were tested after aging in saline for 6 months. Micro-shear bond strength test was applied until failure. . Multi-factorial ANOVA test and One-way ANOVA followed by pair-wise Tukey's post-hoc tests were used to analyze the data. Results: Both resin cements showed statistically significant decrease on bond strength after aging. Before aging, both surface treatments with adhesive resin cement showed statistically significant higher micro-shear bond strength mean values than with self-adhesive resin cement. After aging sandblasting showed a statistically significant higher micro-shear bond strength mean values with adhesive resin cement, while hydrofluoric acid etching revealed a statistically non-significant higher values with adhesive resin cement than self-adhesive resin cement. Conclusion: For both surface treatments and resin cements aging had a detrimental effect on micro- shear bond strength.
Authors and Affiliations
Ayman Mohammed Said1*, Maged Mohamed Mohamed Zohdy2 and Tarek Salah El Din Morsy3
Keywords
Related Articles
- EP ID EP707456
- DOI https://doi.org/10.37191/Mapsci-2582-3736-2(1)-021
- Views 64
- Downloads 0
Closed Flap Osseous Crown Lengthening Procedure
Osseous crown-lengthening is often needed to enhance the appearance of a patient's smile, prevent the violation of biologic width, and/or provide sufficient tooth structure for the placement of final restorations. The pr...
Private Dentistry after COVID-19 – A Clinician’s Personal Experience
Face to face dental care in the UK was largely suspended from March until June and beyond is very limited still in many cases. Both NHS and Private dental services in the four nations of the United Kingdom aligned with...
Endodontic Treatment of Two Maxillary Incisors with Dens Invaginatus
Endodontic treatment of two maxillaryincisors with dens invaginatus is reported. Invaginated teeth present technical difficulties with respect to their management because of complicated canal morphology. This case was tr...
Skin Lesions with An Odontogenic Origin
Dermatological disorders have an alarming incidence of 60% in the Indian scenario. These disorders can range from mild dermatitis, acne to the most severe form of unresolving urticaria, pruritis etc. Clinicians have come...
HBOT Application at Cases of Gingival Inflammation
The treatment of periodontal diseases, mainly of their origin, with the most common clinical manifestation in form of gingival inflammation, is manifold and powerful, including: mechanical therapy, antibiotic, antiseptic...