|
KMID : 0362420090470030342
|
|
Journal of Korean Academy of Prosthodontics
2009 Volume.47 No. 3 p.342 ~ p.347
|
|
|
Comparison of microleakage after load cycling for nanofilled composite resin fillings with or without flowable resin lining
|
|
Han Sun-Deok
Kim Won
Choi Ji-Young
Oh Nam-Sik
Lee Myung-Hyun
|
|
|
Abstract
|
|
|
Statement of problem: when using resin for class II restoration, micoleakage by instrumentation can be regarded as the primary negative characteristic. A review of the available literature suggests that using flowable resin as liner to decreased microleakage.
Purpose: The aim of this study was to determine the influence of the nanofilled flowable resin lining on marginal microleakage after load cycling in class II composite restoration fillings using nanofiller resin.
Material and Methods: 24 extracted premolars were prepared with class II cavity. F group was restored the nanofilled resin with the nanofilled flowable resin as liner. NF group was restored the nanofilled resin only. After restoration, an experiment was performed on 2 groups using a 300N load at 104, 105 and 106 cycles. Prior to and before each load cycling, it was gauged length on total marginal microleakage, axial marginal microleakage and buccal, gingival, lingual marginal microleakage. Data were analyzed with the Mann-Whitney test & Kruskal-Wallis test.
Results: There were statistically significant differences between 2 groups and between individual groups. (P < .05) The result showed less microleakage in teeth restored by the nanofilled resin, which was lined by the nanofilled flowable resin.
Conclusion: There was significant reduction in microleakage when the nanofilled flowable resin lining was placed underneath the nanofilled resin in class II composite restoration fillings.
|
|
|
KEYWORD
|
|
|
nanofilled resin, nanofilled flowable resin, microleakage, load cycling
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|