Effect of Two Different Polyethylene Fiber Positions on Fracture Resistance of Endodontic Treated Premolars: In vitro Comparative Study
DOI:
https://doi.org/10.32828/mdj.v19i2.894Keywords:
Fracture resistance , Endodontic treated teeth , Fiber reinforced materials , Poly ethylene fibers, incremental layering , Wallpapering techniqueAbstract
Purpose: This study evaluated the effect of different polyethylene fibers positions on fracture resistance of endodontic treated premolars.
Materials & Method: -
40 maxillary upper first premolars had been randomly divided in to 4 groups; (n=10). Except for control group, MOD cavity preparation with no steps were done within groups. After endodontic treatment and adhesive step and band application teeth restored with different techniques as follows: B-incremental with G- aenial posterior micro hybrid composite, C-circumferential Ribbond application (wallpapering) with incremental layering, D- bulkfill technique with ribbond reinforcement . Fracture test was measured using LARYEE device ( a computer controlled universal testing machine, China). Statistical analysis was done by One way ANOVA then LSD test to evaluate significance among groups.
Results: The highest mean of fracture resistance in restored groups was recorded with group C (885 N) (wallpapering technique); while group D showed the lowest fracture resistance mean (678 N).
Conclusion: positioning of polyethylene fibers circumferentially can enhance the fracture strength of endodontic treated teeth.
References
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This work is licensed under a Creative Commons Attribution 4.0 International License.
