Fracture resistance and analysis of stress distribution of implant-supported single zirconium ceramic coping combination with abutments made of different materials
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Human Kinetics Publishers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The purpose of this study was to compare the fracture resistance and fracture mode of single implant-zirconium coping combinations using zirconium and titanium abutments and to analyze the stress distribution pattern using three-dimensional finite elements analysis. Twenty implants with titanium and zirconium abutments were randomly divided into two groups (n = 10) and into resin blocks. Zirconium copings were cemented onto the abutments. The specimens were loaded with 135° angles to the long axis and the load values at the moment of failure were recorded using a universal test machine. Stress levels were calculated according to the maximum Von Mises criteria. The fracture resistances for titanium and zirconium abutment groups were 525.65 N and 514.05 N, respectively. No significant differences were observed between two groups regarding the fracture resistance levels. The maximum Von Mises equivalent stress concentrated on zirconium copings in both of the groups. Implant-abutment-ZrO2 coping combination has the potential to withstand physiological occlusal forces in the anterior region. Three-dimensional finite elements analysis results of the implant-abutment- ZrO2 coping combination is compatible with the results of fracture resistance. © 2012 Human Kinetics, Inc.
Açıklama
Anahtar Kelimeler
All-ceramic crown, Ceramic abutment, Fracture resistance, Stress analysis, Titanium abutment
Kaynak
Journal of Applied Biomechanics
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
28
Sayı
4
