scholarly journals Effect of Cyclic Loading on Abutment Screw Loosening in Angled Implant AbutmentsAn In-vitro Study

2019 ◽  
Author(s):  
Syed Ershad Ahmed ◽  
Chitra Shankar Krishnan ◽  
Jayashree Mohan ◽  
Parithimar Kalaignan
Keyword(s):  
Cyclic Loading ◽  
In Vitro Study ◽  
Vitro Study ◽  
Screw Loosening ◽  
Abutment Screw

Effect of implant abutment connection designs, and implant diameters on screw loosening before and after cyclic loading: In-vitro study

2019 ◽  
Vol 35 (11) ◽  
pp. e265-e271 ◽  
Author(s):  
Sara Reda Sammour ◽  
Mohamed Maamoun El-Sheikh ◽  
Attiah Aly El-Gendy
Keyword(s):  
Cyclic Loading ◽  
In Vitro Study ◽  
Vitro Study ◽  
Screw Loosening ◽  
Implant Abutment ◽  
Before And After

scholarly journals Impact of Different Screw Designs on Durability of Fracture Fixation: In Vitro Study with Cyclic Loading of Scaphoid Bones

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0145949 ◽  
Author(s):  
Dominik Gruszka ◽  
Robert Herr ◽  
Hans Hely ◽  
Peer Hofmann ◽  
Daniela Klitscher ◽  
...  
Keyword(s):  
Cyclic Loading ◽  
Fracture Fixation ◽  
In Vitro Study ◽  
Vitro Study

The Effect of Tissue Entrapment on Screw Loosening at the Implant/Abutment Interface of External- and Internal-Connection Implants: An In Vitro Study

2015 ◽  
Vol 25 (3) ◽  
pp. 216-223 ◽  
Author(s):  
Helios A. Zeno ◽  
Renan L. Buitrago ◽  
Sidney S. Sternberger ◽  
Marisa E. Patt ◽  
Nick Tovar ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Screw Loosening ◽  
Internal Connection ◽  
Implant Abutment

scholarly journals Effect of Mechanical Cycling on Screw Torque in External Hexagon Implants with and without Platform Switching

2015 ◽  
Vol 26 (3) ◽  
pp. 284-287 ◽  
Author(s):  
Bruno Andrade Cantharino de Carvalho ◽  
Eduardo Vedovatto ◽  
Paulo Sérgio Perri de Carvalho ◽  
José Vitor Quinelli Mazaro ◽  
Rosse Mary Falcón-Antenucci
Keyword(s):  
In Vitro Study ◽  
Screw Loosening ◽  
Removal Torque ◽  
Tukey Test ◽  
Reverse Torque ◽  
Mechanical Cycling ◽  
Significant Difference ◽  
Platform Switching ◽  
Abutment Screw

This in vitro study evaluated the effect of mechanical cycling on the torque of retaining screw in external hexagon implants with platform switching (PS), regular platform (RP) and wide platform (WP). A total of 30 specimens were equally divided into 3 groups: PS, PR and WP. Each specimen was prepared with implants: 3.75 x 10 mm for RP group and 5.0x10 mm for PS and WP groups and its respective abutment with 32 Ncm torque. All groups were subjected to 106 cycles with 100 N (corresponding to about 40 months of chewing). The results were obtained with the reverse torque of each specimen and data were evaluated using ANOVA and Tukey test (p<0.05). The PS group showed statistically significant difference in screw removal torque (30.06±5.42) compared with RP (23.75±2.76) and WP (21.32±3.53) (p<0.05) groups; the RP and WP groups showed no statistically significant difference between them. It was concluded that the PS group showed higher reverse torque value, suggesting lower susceptibility of the abutment screw loosening.

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