Effect of novel restoration techniques on the fracture resistance of teeth treated endodontically: An in vitro study


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KEMALOĞLU H. , Emin Kaval M., TÜRKÜN M. , MİÇOOĞULLARI KURT S. S.

DENTAL MATERIALS JOURNAL, cilt.34, ss.618-622, 2015 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 34 Konu: 5
  • Basım Tarihi: 2015
  • Doi Numarası: 10.4012/dmj.2014-326
  • Dergi Adı: DENTAL MATERIALS JOURNAL
  • Sayfa Sayısı: ss.618-622

Özet

The aim was to evaluate the effects of fiber-reinforced composite restorations and a bulk-fill resin composite on the fracture strength of mandibular premolars treated endodontically. Standard mesio-occluso-distal (MOD) cavities were prepared in 48 mandibular premolars. Following root canal treatment, teeth were assigned to four groups: Group 1, nano-hybrid resin composite; Group 2, polyethylene woven fiber plus nano-hybrid resin composite; Group 3, short fiber-reinforced resin composite plus nano-hybrid resin composite; and Group 4, bulk-fill resin composite plus nano-hybrid resin composite. Then, the teeth were subjected to the fracture toughness test. The data were analyzed statistically using one-way ANOVA, followed by Tukey's post-hoc test. The fiber-reinforced groups had better results than the nano-hybrid and bulk-fill composites (p<0.05), while the bulk-fill and nano-hybrid composite restorations gave similar results (p>0.05). Fiber-reinforcement improved the fracture strength of teeth with large MOD cavities treated endodontically. Bulk-fill composites can be used reliably as well as nano-hybrid composites.