VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Effect of Er: YAG laser pretreatment on bond strength of a composite core build-up material to fiber posts
    Križnar, Igor, dr.dent.med. ; Jevnikar, Peter, 1965- ; Fidler, Aleš, 1973-
    The study evaluated the micro push-out bondstrength of resin material (Multicore Flow) to two types offiber posts (FP), namely fiber-reinforced composite (FRC)Postec and Radix Fiber posts using ... Er:YAG laser pretreatment.FP were divided into four groups, two being controlgroups. Before the core build-up procedure, representativespecimens from each group were chosen to determine thesurface roughness (Ra) at three different areas using a contactprofilometer, while after the procedure, 1.5-mm-thick discswere sectioned and the micro push-out method was used toassess the bond strength of the core build-up material to thefiber post in each group. Two-way analysis of variance wasused for statistical analysis with the level of significance set atp<0.05. Scanning electron microscopy was used to analyzethe post surfaces after Er:YAG laser pretreatment and toclassify the failure mode after loading. The type of pretreatment(p<0.001) and an interaction between the pretreatmentand type of post (p<0.001) had a significant effect on the bondstrength, while the type of post did not (p=0.965). The meanbond strength in the Er:YAG laser pretreatment group wassignificantly lower compared to the FRC Postec posts controlgroup (p<0.001), while there was no significant differencebetween the Radix Fiber posts groups (p=0.680). Mean Ravalues from the Er:YAG laser pretreatment groups were significantlyhigher compared to control groups (p<0.001).Er:YAG laser pretreatment at tested parameters negativelyaffected the bond strength of Multicore to FP and cannot berecommended as a standard procedure.
    Vir: Lasers in medical science. - ISSN 0268-8921 (Vol. 30, iss. 2, 2015, str. 733-740)
    Vrsta gradiva - članek, sestavni del
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 1092012

    Povezava(-e):

    http://link.springer.com/article/10.1007%2Fs10103-013-1412-4
    DOI

vir: Lasers in medical science. - ISSN 0268-8921 (Vol. 30, iss. 2, 2015, str. 733-740)
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