Correlation between microleakage and screw loosening at implant-abutment connection
The Journal of Advanced Prosthodontics
;
: 35-38, 2014.
Article
in English
| WPRIM
| ID: wpr-192397
ABSTRACT
PURPOSE:
This study aimed to evaluate the correlation between microleakage and screw loosening at different types of implant-abutment connections and/or geometries measuring the torque values before and after the leakage tests. MATERIALS ANDMETHODS:
Three different abutment types (Intenal hex titanium, internal hex zirconium, morse tapered titaniuim) with different geometries were connected to its own implant fixture. All the abutments were tightened with a standard torque value then the composition was connected to the modified fluid filtration system. After the measurements of leakage removal torque values were re-measured. Kruskal-wallis test was performed for non-parametric and one-way ANOVA was performed for parametric data. The correlation was evaluated using Spearman Correlation Test (alpha=0.05).RESULTS:
Significantly higher microleakage was found at the connection of implant-internal hex zirconium abutment. Observed mean torque value loss was also significantly higher than other connection geometries. Spearman tests revealed a significant correlation between microleakage and screw loosening.CONCLUSION:
Microleakage may provoke screw loosening. Removing torque values rationally decrease with the increase of microleakage.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Titanium
/
Zirconium
/
Torque
/
Filtration
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2014
Type:
Article
Similar
MEDLINE
...
LILACS
LIS