Effect of Different Fiber Reinforcement Strategies on the Fracture Strength of Composite Resin Restored Endodontically Treated Premolars
Pesqui. bras. odontopediatria clín. integr
; 19(1): 4465, 01 Fevereiro 2019. ilus, tab
Article
在 En
| LILACS, BBO
| ID: biblio-998270
Responsible library:
BR1264.1
ABSTRACT
Objective:
To compare the effect of three different fiber reinforcement strategies on the fracture strength of composite resin restored endodontically treated premolars. Material andMethods:
Seventy-two sound human premolars extracted for orthodontic reasons were divided into 6 groups (n=12) after endodontic treatment. Group 1 intact teeth (positive control); Group 2 endodontically treated teeth without restoration (negative control); Group 3 composite resin restoration; Group 4 placement of fibers at occlusal position; Group 5 splinting the buccal and palatal walls with horizontal fiber posts; Group 6 placement of fibers at the occlusal position after splinting the buccal and palatal walls with horizontal fiber posts. Then fracture strength was measured at a crosshead speed of 0.5 mm/min in a universal testing machine. Data were analyzed using one-way ANOVA and post hoc Tukey tests at α=0.05.Results:
There were significant differences between the negative and positive control groups (p<0.001) and between the negative control group and all the other study groups (p<0.001). However, there were no statistically significant differences between the positive control group and all the experimental groups and between the experimental groups (p>0.05).Conclusion:
Fiber insertion had no additional reinforcing effect on the fracture strength following composite resin restoration.Key words
全文:
1
索引:
LILACS
主要主题:
Tensile Strength
/
Bicuspid
/
Materials Testing
/
Composite Resins
/
Tooth, Nonvital
国家/地区名称主题:
Asia
语言:
En
期刊:
Pesqui. bras. odontopediatria clín. integr
期刊主题:
ODONTOLOGIA
年:
2019
类型:
Article