EFFECT OF CYCLIC LOADING ON BOND STRENGTH OF FIBER POSTS TO ROOT CANAL DENTIN

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KHAMVERDI ZAHRA; YAZDANI DAMAVANDI LEILA; KASRAEI SHAHIN

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Journal: Frontiers in Dentistry Year:2014 | Volume:11 | Issue:1 Page(s): 85-92

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Title

EFFECT OF CYCLIC LOADING ON BOND STRENGTH OF FIBER POSTS TO ROOT CANAL DENTIN

Author(s)

KHAMVERDI ZAHRA | YAZDANI DAMAVANDI LEILA | KASRAEI SHAHIN | Issue Writer Certificate

Keywords

RESIN CEMENTS

POST AND CORE TECHNIQUE

ROOT CANAL PREPARATION

DUAL CURE RESIN CEMENT

ACID ETCHING

Abstract

Objective: The aim of this study was to evaluate the effect of cyclic loading on the bond strength of quartz fiber posts to root canal dentin after different surface treatments of different regions of root canal dentin.Materials and Methods: Forty-eight single-rooted human teeth were selected. Post spaces were prepared and then the teeth were divided into four groups: G1: no treatment (control); G2: irrigation with a chemical solvent; G3: etching with 37% phosphoric acid; G4: treatment with ultrasonic file. The fiber posts were cemented using dual-cured resin cement. Half of the specimens were load-cycled (10000 cycles, 3 cycles/s) and the others did not undergo any load cycling. From each root, two slides measuring 1 mm in thickness were obtained from the apical and cervical regions. The push-out bond strength test was performed for each slice. Data were analyzed by using 3-way ANOVA and Tukey HSD tests. The fracture modes were evaluated under a stereomicroscope at ×20.Results: The effect of load cycling and surface treatment as the main factors and the interaction of main factors were not significant (P=0.734, P=0.180, and P=0.539, respectively). The most frequent failure mode under the stereomicros-cope was adhesive.Conclusion: It appears that load cycling and surface treatment methods had no effect on the bond strength of fiber posts to root canal dentin, but it depended on the region of the root canal dentin.

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APA: Copy

KHAMVERDI, ZAHRA, YAZDANI DAMAVANDI, LEILA, & KASRAEI, SHAHIN. (2014). EFFECT OF CYCLIC LOADING ON BOND STRENGTH OF FIBER POSTS TO ROOT CANAL DENTIN. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), 11(1), 85-92. SID. https://sid.ir/paper/298098/en

Vancouver: Copy

KHAMVERDI ZAHRA, YAZDANI DAMAVANDI LEILA, KASRAEI SHAHIN. EFFECT OF CYCLIC LOADING ON BOND STRENGTH OF FIBER POSTS TO ROOT CANAL DENTIN. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2014;11(1):85-92. Available from: https://sid.ir/paper/298098/en

IEEE: Copy

ZAHRA KHAMVERDI, LEILA YAZDANI DAMAVANDI, and SHAHIN KASRAEI, “EFFECT OF CYCLIC LOADING ON BOND STRENGTH OF FIBER POSTS TO ROOT CANAL DENTIN,” FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 11, no. 1, pp. 85–92, 2014, [Online]. Available: https://sid.ir/paper/298098/en

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