The effect of the different restorations on fracture resistance of root-filled premolars

• Hauptverfasser: Hakan Göktürk (VerfasserIn), Emine Şirin Karaarslan (VerfasserIn), Elif Tekin (VerfasserIn), Bilal Hologlu (VerfasserIn), Işıl Sarıkaya (VerfasserIn)
• Format: Buch
• Veröffentlicht: BMC, 2018-11-01T00:00:00Z.
• Schlagworte: article
• Online-Zugang: Connect to this object online.
• Notes: 10.1186/s12903-018-0663-7; 1472-6831
• Keywords: Endodontic treatment; Fracture resistance; Pre-impregnated glass-fibers; Dentistry; RK1-715
• Source: BMC Oral Health, Vol 18, Iss 1, Pp 1-8 (2018)

Abstract Background The study investigated the fracture resistance of root-filled maxillary premolars with class II cavities restored by different restorations. Methods A total of 55 intact maxillary premolar teeth were included (n = 11). G1 as positive control group, 44 teeth underwent root canal treatment, and MOD cavities were prepared. (G2) no restoration, (G3) direct composite restoration, (G4) direct composite strengthened with buccal to lingual pre-impregnated glass-fibers and (G5) ceramic inlay restoration. After thermocycling, fracture resistance test was performed and fracture type was recorded. Data were analyzed with one-way ANOVA and Chisquare test. Results The mean fracture resistance was as follows: G1 had the highest fracture resistance, G2 had the lowest (p < 0.05). There were no significant differences between the fracture resistance values of the groups that underwent different restorations (G3, G4, G5) (p > 0.05). According to fracture type, the groups showed similar results (p > 0.05). A significant level of unrestorable fracture was detected in G5 (ceramic inlay) (p < 0.05). Conclusions All of the restoration techniques investigated herein increased the fracture strength of teeth; however, all of these values were lower than the fracture resistance of intact teeth. There were no significant differences between the fracture resistance values of the groups that underwent different restorations.