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Fracture Resistance of Root-Filled Maxillary Premolar Teeth Restored with Current Dentin Bonding Adhesives
Seyda Hergüner Siso
; Stomatološki fakultet Sveučilišta u Cumhuriyetu, Sivas, Turska
Kürsat Er
; Stomatološki fakultet, Karadeniz Tehničko sveučilište, Trabzon, Turska
Feridun Hürmüzlü
; Stomatološki fakultet Sveučilišta u Cumhuriyetu, Sivas, Turska
Alper Kustarci
; Stomatološki fakultet Sveučilišta u Cumhuriyetu, Sivas, Turska
Kerem Engin Akpinar
; Stomatološki fakultet Sveučilišta u Cumhuriyetu, Sivas, Turska
Sažetak
Objective: The aim was to study and compare the fracture resistance of root-filled premolar teeth restored with various dentin bonding adhesives (DBAs). Material and Methods: Eighty extracted single-rooted human maxillary premolar teeth were randomly assigned to eight groups (n=10). Group 1 (control) did not receive any preparation. From groups 2 to 8, the teeth were root filled and MOD cavities were prepared. Group 2 remained unrestored. Groups 3-8 were restored using the following DBAs: iBond (Heraeus Kulzer), G-Bond (GC Co.), Xeno III (Dentsply/Caulk), AdheSe (Ivoclar Vivadent), Clearfil Protect Bond (Kuraray) and Clearfil Tri-S Bond (Kuraray); all preparations were further restored with a resin composite (Renew, Bisco). All specimens were then stored in 100% humidity at 37 ºC for 24 h, followed by thermal cycling 500 times between 5° and 55 °C. Compressive loading of the teeth was performed by a universal testing machine at a crosshead speed of 1 mm min-1 until failure. The data were recorded in Newton (N) and were submitted to one-way ANOVA and Tukey post-hoc test. Results: The mean loads necessary to fracture the samples in each group were: group 1: 984.00 ± 116.27a, group 2: 167.30 ± 47.26b, group 3: 872.30 ± 164.99a, group 4: 848.70 ± 157.84a, group 5: 916.30 ± 246.19a, group 6: 863.20 ± 197.69a, group 7: 802.20 ± 183.84a, group 8: 870.70 ± 126.48a. Similar letters indicate statistically similar values (P>0.05). Conclusion: The type of DBAs had no influence on the fracture resistance of teeth.
Ključne riječi
Bicuspid; Tooth Fractures; Root Canal Filling Materials; Dentin-Bonding Agents; Composite Resin
Hrčak ID:
21247
URI
Datum izdavanja:
15.3.2008.
Posjeta: 2.063 *