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Register a new userA comparison of sealing ability of amalgam, MTA,and bioaggregate when used as retrograde filling materials: An in-vitro study
مقارنة قابلية الختم للأملغم و MTA و Bioaggregate عند استخامهم كمواد حشو راجع: دراسة مخبرية
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خالد العلي( باحث )
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يعتبر الختم الذروي الذي يتم الحصول عليه بتطبيق مادة حشو راجع من العوامل المهمة في شفاء الآفات حول الذروية بعد عمليات قطع الذروة . هدفت هذه الدراسة إلى مقارنة قابلية الختم الذرويللأملغم و MTA و Bioaggregate عند استخدامهم كمواد حشو راجع .
The apical seal, which is achieved by application of a retrograde filling material, is considered one of the importan t elements in healing of the periapical lesions after apicectomy operations.The aim of this study was to compare the apical sealing ability of amalgam, MTA,and Bioaggregate when used as retrograde filling materials.
References used
Gartner A H, Dorn S O. Advances in endodontic surgery.DentClin North Am.1992; 36: 357–379
Holt GM and Dumsha TC. Leakage of amalgam, composite, and Super-EBA, compared with a new retrofill material: bone cement. J Endod, 2000 26(1): 29-31
Scheerer.S Q, Steinman .H R, and Cohen .J. A Comparative Evaluation Of Three Root-end Filling Materials : An In Vitro Leakage Study Using PrevotellaNigrescens. Journal ofEndodontics, Vol.27, No.1.2001:40-42
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The quality of root canal filling is considered the key
of the successful endodontic treatment, because the one of goals of root
canal obturation is to obtain three-dimensional and complete sealing.
Therefore, The aim of this in vitro study was to evaluate the quality of root
canal filling of White-colored Mineral Trioxide Aggregate (WMTA) and
Gray-colored Portland Cement (GPC).
Aim of study: to compare the ability of four restorative materials (MTA - Composite
- Zinc Phosphate - Glass Ionomer Cement) in coronal sealing of the endodontically treated
root canal orifice in extracted teeth.
Materials and Methods: 60 extracte
d teeth with single canal were chosen. X-Ray
Images were taken, then their crowns were cut off by using diamond disc, then the canals
were classically prepared, after that, they were filled with Zinc Oxide Eugenol Cement and
the gutta-percha cones using Lateral Condensation technique. They were left for (24) hours
in order to ensure the quite hardening of the filling material. After that, the filling material
was removed vertically by using an eraser tool up to a depth of (2) mm inside the root
canal. Then, the teeth were randomly divided into four groups, each contained (15) teeth
(n1=n2=n3=n4=15). The entry orifices of all the teeth were filled with one of the
restorative materials. The teeth were coated with Varnish except for 1 mm around orifices,
After then, they were immersed in Methylene Blue Dye of 2 % for five minutes. After that,
the teeth were washed under a stream of plentiful water and left to dry. Longitudinal
sections were made in the buccal lingual direction. Then the sections were examined under
the optical magnifier to measure the liner dye leakage using a millimeter ruler designed by
“AutoCAD 2013” Program.
This study aims to determine the direct role
of some factors that contribute to improve the prognosis of the
Cervical and Furcation Perforations throughout application of
bioactive materials using non surgical methods.
Aim: to compare the apical sealing ability of three root canal sealers in human
extracted teeth using dye penetration.
Materials and Methods: thirty extracted human maxillary teeth were instrumented
1mm short of the anatomical apex and randomly as
signed to three groups (n=10),
according to the root canal sealer used for obturation. The teeth were divided into three
experimental groups and obturated by cold lateral compaction of gutta-percha and one of
the following sealers: group I, Zinc oxide and Eugenol sealer; group II, Adseal; group III,
Apexit plus.The teeth were covered with nail varnish to within 2-3mm of the apical
foramen and immersed in 2% methylene blue for 24 hours.After this period, the teeth were
washed and cut longitudinally for apical leakage measurement inside the canal.
Results: Statistical evaluation of the results showed no significant difference in the
leakage between Adseal and Apexit plus (P =0.99). Leakage with ZOE was significantly
lesser than Adseal (P=0.004) andApexit Plus (P=0.003).
Conclusions:under the condition of this study, it can be concluded that ZOE presents
lower apical leakage than Adseal and Apexit plus, and there was no significant difference
in leakage between Adseal and Apexit plus.
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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