1. The effect of fatigue loading on the screw joint stability of zirconium abutment 
Mitsuyoshi Tsumita, DDS, PhD, Yuji Kokubo, DDS, PhD, Takamitsu Kano, DDS, PhD, Keita Sasaki, DDS, PhD 
Journal of Prosthodontic Research 
Volume 57, Issue 3, Pages (July 2013)
DOI: /j.jpor
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2. Fig. 1 Titanium and zirconium abutments used in this study.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2013 Japan Prosthodontic Society Terms and Conditions

3. Fig. 2
Air cylindrical cyclic loading device to simulate mastication (Upper). Specimen holder mounted in position under loading stylus (Lower).
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2013 Japan Prosthodontic Society Terms and Conditions

4. Fig. 3 Mean reverse torque values before and after loading.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2013 Japan Prosthodontic Society Terms and Conditions

5. Fig. 4
Fractured zirconium abutment after loading and magnification image.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2013 Japan Prosthodontic Society Terms and Conditions