Naslov
Push-out bond strength of a self-adhesive resin cemented fibre posts to root canal dentine after Nd:YAG laser irradiation and Er:YAG and Er, Cr:YSGG laser activated irrigation

Autori
Šimundić Munitić, Marija ; Bago Jurič, Ivona ; Glockner, Karl ; Lumnije, Kqiku ; Anić, Ivica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
European Society of Endodontology: Abstracts from the Biennial Congress 2015. U: International Endodontic Journal 2016 ; 49(1) / P.M.H. Dummer - , 2016, 111-112

Skup
Biennal Congress of the European Society of Endodontology

Mjesto i datum
Barcelona, Španjolska, 16.09.2015. - 19.09.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
fibre posts ; laser ; push out test

Sažetak
Aim To evaluate the effect of Nd:YAG laser irradiation, Er:YAG and Er, Cr:YSGG laser activated irrigation combined with QMiX or saline on the push-out bond strength of fibre posts cemented with a self-adhesive cement to root canal dentine. Methodology Eighty two single-rooted human permanent teeth were used. Root canals were instrumented with ProTaper Next instruments (Dentsply Maillefer, Switzerland) to an X3 instrument. Final irrigation protocol included 1 mL 2.5% NaOCl, 1 mL 17% EDTA for 1 min and 1 mL saline solution. Fibre-reinforced composite post preparations were created in previously filled root canals. The samples were divided into six experimental groups (n=12 each) according to the final pretreatment of root canal: I: Nd:YAG laser (pulse energy: 100 mJ, repetition rate: 10 Hz, medium power: 1.5 W) ; II: Er:YAG + saline solution (pulse energy: 20 mJ, repetition rate: 15 Hz, pulse duration: 50 μs) ; III: Er:YAG+ QMiX ; IV: Er, Cr:YSGG+ saline solution (pulse energy: 62.5 mJ, repetition rate: 20 Hz, pulse duration: 140 μs) ; V: Er, Cr:YSGG+ QMiX. Ten samples did not receive any pretreatment and served as positive controls. Fibre-reinforced posts were cemented with a self-adhesive cement (SpeedCEM, Ivoclar Vivadent, Liechtenstein) according to the manufacturer's instructions. The samples were cut into 2 mm thick parallel transverse sections and prepared for the push-out bond strength test in an universal testing machine. The results were analysed using the Kruskal-Wallis test. One sample from each group was used to show and evaluate the dentine surface after each pretreatment protocol by scanning electron microscopy. Results There were no significant differences in the push-out bond strength of the self adhesive cement among groups (p>0.05). The highest bond strength was recorded in the group Er:YAG laser + QMiX (mean 1.8 MPa). Conclusions Pretreatment of root canals with Nd:YAG laser, Er:YAG and Er, Cr:YSGG laser activated irrigation did not influence the bond strength of fibre posts cemented with a self- adhesive cement to root canal dentine.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

POVEZANOST RADA