Effect of novel restorative materials and retention slots on fracture resistance of endodontically-treated teeth    
Yazarlar (7)
Bilal Yaşa
İzmir Katip Çelebi Üniversitesi, Türkiye
Hakan Arslan
Atatürk Üniversitesi, Türkiye
Elif Yaşa
Şifa Üniversitesi, Türkiye
Merve Akçay
İzmir Katip Çelebi Üniversitesi, Türkiye
Mehmet Bekdemir
Türkiye
Zeynep Çakmak Gürel
Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Acta Odontologica Scandinavica
Dergi ISSN 0001-6357 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 03-2016
Cilt No 74
Sayı 2
Sayfalar 96 / 102
DOI Numarası 10.3109/00016357.2015.1046914
Makale Linki http://dx.doi.org/10.3109/00016357.2015.1046914
Özet
The aim of this study was to evaluate the fracture resistance of endodontically-treated teeth restored with nano-hybrid composite resin, bulk-fill flowable and short fibre-reinforced-composite in the absence/presence of retention slots. One hundred and ten extracted non-carious human mandibular molars received endodontic treatment followed by mesio-occlusodistal (MOD) cavities with 3 ± 0.2 mm thicknesses of buccal and lingual walls. Teeth were divided into two main groups according to the retention slot preparation. The dove-tail retention slots were prepared on the middle of opposite buccal and lingual walls to create mechanical interlocking. Each group was further divided into four sub-groups according to restorative material types: control (no restoration), nano-hybrid composite resin (Filtek™ Z550), bulk-fill flowable (Filtek™ Bulk Fill) and short fibre-reinforced-composite (everX Posterior™). Restored teeth were subjected to compressive load at a strain rate of 1 mm/min. The data were statistically analysed using two-way ANOVA and Tukey's test for multiple comparisons. The fracture resistance was significantly affected by the presence of the retentive slots and restorative material (p < 0.05). Restored teeth with retentive slots significantly increased the fracture resistance compared with restored teeth without retentive slots (p < 0.05). Short fibre-reinforced-composite with retentive slot cavities had significantly higher fracture resistance values compared with the other test groups (p < 0.05). The preparation of retention slots may increase the fracture resistance of endodontically-treated teeth, especially, when restored with short fibre-reinforced composite. The use of short fibre-reinforced composite with retentive slots could be an alternative technique to prevent cuspal fracture on endodontically-treated teeth with MOD cavity.
Anahtar Kelimeler
Fracture resistance | MOD cavity | bulk-fill flowable | retentive slot | short fibre-reinforced composite