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Improvement of flexural bond strength of zirconia‐resin cement by surface patterning using sub‐nanosecond UV laser
Author(s) -
Akay Canan,
Turan Neslihan,
Karakış Duygu,
Angurel Luis Alberto
Publication year - 2020
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13631
Subject(s) - materials science , cubic zirconia , bond strength , flexural strength , composite material , universal testing machine , laser , cement , biocompatibility , group (periodic table) , optics , layer (electronics) , chemistry , ceramic , adhesive , physics , organic chemistry , metallurgy , ultimate tensile strength
Zirconia is a dental material that shows excellent biocompatibility and high strength in clinical applications. This study aims to evaluate the effects of ultrafast laser applications. The surface nanostructures were classified into three groups. Group 1 was generated using the burst mode, with three different distances between dots: 52 µm (Group 1a), 104 µm (Group 1b), and 156 µm (Group 1c). Group 2 was processed using the scanning mode configuration, with a set of parallel lines. Group 3 was also processed using this scanning configuration creating a set of square‐shaped patterning. Group 4 was the control group. After the surface treatments, a pair of zirconia specimens was bonded end to end with resin cement. Flexural bond strength (FBS) test was applied in a universal test machine. Multiple comparisons were performed using a one‐way analysis of variance and the Tukey's HSD test. All the samples that were treated with the laser showed higher FBS values than the untreated surface. Using the burst mode, preformed circular‐shaped surface on an angle of 90 0 at 52 µm distance (Group 1a) showed the highest FBS values among all groups ( p < .05). Groups 2 and 3 had significantly higher values than 1b and 1c.