The effect of photodynamic therapy and polymer solution containing nano-particles of Ag /ZnO on push-out bond strength of the sealers AH-Plus and MTA Fillapex

The aim of this study was to examine and compare the effect of photodynamic therapy and solution containing nano particles Ag/ZnO on adhesion of endodontic sealers to dentinal walls of human root canal. Ninty single-rooted human teeth were selected and their clinical crown was cut from the cemento-e...

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Veröffentlicht in:Journal of clinical and experimental dentistry 2017-09, Vol.9 (9), p.e1109-e1114
Hauptverfasser: Yavari, Hamidreza, Ghasemi, Negin, Divband, Baharak, Rezaei, Yashar, Jabbari, Golchin, Payahoo, Salar
Format: Artikel
Sprache:eng
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Zusammenfassung:The aim of this study was to examine and compare the effect of photodynamic therapy and solution containing nano particles Ag/ZnO on adhesion of endodontic sealers to dentinal walls of human root canal. Ninty single-rooted human teeth were selected and their clinical crown was cut from the cemento-enamel junction zone. Canals were prepared by RaCe rotary system and the smear layer was removed using 17% EDTA and 5.25% NaOCl. Samples were randomly divided into two groups of AH Plus and MTA Fillapex based on the sealer type and each group based on antimicrobial method was divided into two sub-groups of photodynamic therapy and polymer containing nano particles of Ag / ZnO and a control sub-group (N = 15). After obturation of canals with gutta-percha and sealers mentioned, the samples were incubated for a week at a humidity of 95% and 37°C and then 2mm thick discs were prepared from the middle region of roots for Push-out test. The maximum failure force was recorded in newton and converted to MPa. Then, 3 random specimens of each subgroup were evaluated by scanning electron microscopy. Statistical analysis was performed by Two way ANOVA and (
ISSN:1989-5488
1989-5488
DOI:10.4317/jced.54069