effect of etching time duration on the push out strength of self adhesive cement to root dentin
نویسندگان
چکیده
Introduction: Post debonding is one of the most important causes restoration failure in endodontically treated teeth restored with fiber-post. The weakest connection post-cement-dentin complex cement-dentin bonding surface. In this study we evaluated effect etching phosphoric-acid and its duration on push-out strength self-adhesive resin cement to dentin. Materials Method: Root canal therapy was done for fifty intact one-canal premolars then crown cut from CEJ. Fiber-post space prepared root by FGM special drill. were randomly divided into five groups ten teeth. Group without any intervention considered as control-1 other etching. Three etched 37%phosphoric-acid 15seconds, 60seconds 90seconds. last group, after preparation, protocol wasn't performed which control-2. all samples, White post fiber-ost(FGM) size2 cemented TheraCem (Bisco) two 4mm pieces mounted acryl. Push-out test Instron machine each sample shear bond obtained MPa.
منابع مشابه
effect of resin cement pre-heating on the push-out bond strength of fiber post to root canal dentin
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Background and aims. Various factors influence the interfacial bond between the fiber posts and root canal dentin. The aim of the present study was to evaluate the effect of pre-warming of resin cement on the push-out bond strength of fiber posts to various segments of root canal dentin. Materials and methods. In this in vitro study, 40 single-rooted human premolars were decoronated and underwe...
متن کاملEffect of Resin Cement Pre-heating on the Push-out Bond Strength of Fiber Post to Root Canal Dentin
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ژورنال
عنوان ژورنال: International Journal of Health Sciences (IJHS)
سال: 2022
ISSN: ['2550-6978', '2550-696X']
DOI: https://doi.org/10.53730/ijhs.v6ns10.13703