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Register a new userEvaluation of Fracture Resistance of EGlass Fiber Reinforced Composite when Used to Repair two Different Kinds of Dental Ceramic (In-vitro study)
تقييم مقاومة الانكسار لمادة الكومبوزيت المقواة بألياف E الزجاجية عند استخدامها لإصلاح نوعين مختلفين من الخزف السني دراسة مخبرية
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يهدف هذا البحث لتقييم مقاومة الكسر لمادة الكومبوزيت المقواة بألياف E الزجاجية المستخدمة لإصلاح نوعين مختلفين من الخزف السني.
This study aimed to evaluate the fracture resistance of the E glass Fiber Reinforced Composite when used to repair two different kinds of dental porcelain.
References used
Matinlinna JP, Lassila LV, Vallittu PK. The effect of five silane coupling agents on the bond strength of a luting cement to a silicacoated titanium. Dental materials : official publication of the Academy of Dental Materials. 2007;23(9):1173-80
Pameijer CH, Louw NP, Fischer D. Repairing fractured porcelain: how surface preparation affects shear force resistance. J Am Dent Assoc. 1996;127(2):203-209
ROSENSTIEL SF, L. M., FUJIMOTO J. 2001. Contemporary fixed prosthodontics., St. Louis: Mosby
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Resin based composite considers substantially as a restorative
material in clinic. Dentists concern in placement resin composite
restorations with Long term survival.
Materials and Methods: 20 Non carious human third molars, class I
cavity was pr
epared in every molar, restored with methacrylate
resin composite Tetric EvoCeram. The restored teeth were
subjected to thermocycles. Specimen was randomly divided into
two groups : the first group 10 restorations, were repaired by
Cojet® (3M ESPE, Germany) and restored by Filtek™ P90, the
second group 10 restorations also repaired by Cojet ® but restored
by Filtek™ Z350 XT. After that all teeth were subjected to
thermocycles again, later immersed in 0.5% basic fuchsin solution
for 1 s. The teeth were transversely sectioned and observed under
a stereomicroscope. The degree of dye penetration was recorded
and analyzed.
Results: No statistically significant differences in microleakage
were observed between two groups either with low shrinkage
Silorane resin composite or methacrylate resin composite
The aim of this study was to compare fiber reinforced composite
with wired retainers in terms of assessing the rate bond failure and
plaque accumalation . The clinical study was conducted on 20
patients have completed their orthodontic treatment ,
the patients
have been devided into two groups , each group of 10 samples. The
first group of patients had quartz fiber-reinforced composite
retainers and the second group had traditional retainers. Then we
monitored patients every two months for a year. In each review we
were assessing if a retainer in its place or not, and we used disks to
assess the amount of plaque accumalation. Wilcoxon test has been
used to study the statistical significance differences in bond failure
rate and plaque accumalation.
The Purpose of this study was to evaluate and compare the shear bond strength
(SBS) of two composite repair systems to zirconia-ceramic with and without sandblasting.
to evaluate the shear bond strength(SBS) of a composite resin repair system to
zirconia-ceramic with and without water storage and thermo-cycling (WSTC).
Aim of the study was To Compare the efficiency of R
ProTaper and R-Endo retreatment files in the removal of
conventional gutta-percha and resin coated gutta-percha and
time required. 60 extracted single root premolars were selected,
and then divi
ded into two groups according to the obturation
material. Next, each group was divided into two groups
according to the methods of retreatment.
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