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Register a new userEvaluation of Shear Bond Strength of a Composite Repair System to a Zirconia Ceramic with and without Water Storage and Thermo Cycling (An in-Vitro Study)
تقييم مقاومة قوى القص لارتباط نظام الكمبوزت المرمم إلى خزف الزيركون مع التخزين في الماء و الدورات الحرارية أو من دونها (دراسة مخبرية)
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تقييم قوى القص (SBS) لارتباط الكمبوزت المستخدم في ترميم الكسور الخزفية على خزف الزيركون باستخدام ثلاثة أنواع من المعالجات السطحية، مع إجراء التخزين في الماء و الدورات الحرارية (WS TC) أو من دونها.
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).
References used
Sadowsky SJ. An overview of treatment considerations for esthetic restorations: A review of the literature. J Prosthet Dent 2006;96:433-42
Piconi C, Maccauro G. Zirconia as ceramic biomaterial. Biomaterials 1999;20:1-25
Filser F, Kocher P, Weibel F, Luthy H, Scharer P, LJ. G. Reliability and strength of all-ceramic dental restorations fabricated by direct ceramic machining (DCM). Int J Comput Dent 2001;4:89–106
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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.
Background
Resin bonded fixed partial dentures appeared to prevent the excessive preparation of dental
tissue
Investigation of surface treatments to improve the bond of resin cements to metals may contribute
to the longevity of these restoration
s. Due to the potential lack of ideal preparation form the type of alloy
and its surface pretreatment may have clinically relevant correlations with the retentive strength of castings
to minimally retentive preparations
Aim
The aim of this search is to study the bonding resin cement strength to different types of the metal
alloy due to the surface treatment
Purpose Evaluate the effects of two different surface treatments on shear bond strength SBS between a
palladium silver alloy Pb Ag and commercially pure titanium CP Ti cast alloy with resin luting cements
metal type
تأثير نوع المعدن
ومعاملة السطح على مقاومة القص لارتباط الإسمنت الراتنجي
الإسمنت الراتنجي
shear bond strength of resin
خليطة بلاديوم
فضة ( Pb-Ag)
التيتانيوم النقي تجاريا (CP Ti)
المهيئ المعدني (MZP)
Commercially pure titanium
metal zirconia primer
palladium‑silver alloy
resin cement
sandblasting
المزيد..
The aim of this study To compare in vitro shear bond strength (SBS) of different
orthodontic adhesives in and rebonding metal brackets after preparing their bases
mechanically.
Material and methods:Sample consisted of 40 extracted first premolars,
randomly
divided into two groups (n=20),.Adhesive removed by tungsten carbide bur later the
brackets were rebonded. The tests were performed in a tecnotest (6kN) SBS testing
machine, at a speed of 1 mm/min.
It was found that the mean shear bond strength of Reseliencewas 19.25 MPa and that
of Heliosit orthodontic was 10.25MPa.We foundthat the mean shear bond strength of
rebonding forReselience was 13.70 and 7.95 forHeliosit.The t-test revealed that there was a
significant difference between the shear bond strength of the two groups.
We found a significant difference between bonding and rebondingfor
Reselience,while there was no significant difference between bonding and rebonding for
Heliosit.
The purpose of this in vitro study to evaluate the effect
of ceramic primer on the bond strength of adhesive resin cement to
zirconia ceramic surface.
The research aims to evaluate the micro shear bond strength of the calcium silicate cement
(Biodentine) and the glass ionomer cement (GIC) to dentine. The study was performed using
upper or lower premolars, and samples were divided into six equal s
ubgroups according to
the time period (3 h, 1 day, 1 week, 2 weeks, 4 weeks, 8 weeks), in order to study changes in
the values of shear bond strength with time. The comparative study showed that the success
rate of adhesion in the Biodentine group was smaller than that in the GIC group for the tested
premolars after 3 hours and one day, whereas the success rate in the Biodentine group was
greater than that in the GIC group for the tested premolars after 8 weeks.
Results showed a positive correlation between the mean values of shear bond strengths and
the studied time in Biodentine group, which ranged from 1.49 ± 0.18 MPa at 3 hours to a
maximum value of 2.65 ± 0.26 MPa after 8 weeks. While there was a negative correlation
between the mean values and the studied time in the GIC group and values ranged from 3.02
± 0.13 MPa at 3 hours and 2.06 ± 0.09 MPa at 8 weeks.
The study showed the advantage of Biodentine compared with GIC in terms of
micro-bonding to dentine, which can have a clinically significant importance in preventing
the micro leakage and reducing bacterial contamination.
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