One aim of the root canal treatment is providing compact
three dimensional seal for the canal system to prevent germs
enter and its products across both the apical and coronal
ways.
Gutta-Percha is the most use material to fill the radicalism
ca
nals. It has limited importance in spite of many
specifications as lack of the link to the ridge canal.
This study was carried out to evaluate the
influence of a mixture of doxycycline HCl, citric acid, and
polysorbate 80 (MTAD) on the smear layer formed on root surface
after hand-instrumented periodontal treatment. MTAD was
compared with the influence of tetracycline HCl.
This research has been applied to compare the efficacy of the use
of pre-planting with a sensitive variety of tomato OXN93 as a trap
crop with the use of the extracts of M. azedarach , E.
camaldulensis and C. maculatum where Diazinon a treated con
trol,
in reducing the infection and the reproduction rate of the root-knot
nematodes M. javanica on tomato (var. Bestona) in pots.
The objective of this research is to propagate Mentha puligium in
vitro, shoot tips and nodal explant were planted with 0.5-1 cm length
on MS (Murashige's and Skoog) medium with various concentrations
(0.5-1-2-3-4) mg/L of cytokinin BAP.
The geometric correction of remote sensing images becomes a key issue in
production and updating digital maps, multisource data integration, management and
analysis for many geomatic applications. 2D polynomial functions are the most prevalent
to
achieve this correction.
Previous researches have shown that the application of 2D polynomials is
conditioned by the planarity of the terrain and the uniform distribution of ground control
points, but did not explicitly discuss the criteria for evaluating the success or failure of
their application. In this study, we will try to give some of these criteria and to develop
some old analog cartographic rules to suit the nature of the digital satellite images.
In this research, we discussed mathematical foundation for evaluating the precision
of control points- based geometric correction of satellite images. We have also tested the
effect of the topography of the imaged scene on this accuracy. The test has been carried out
by the use of satellite images extracted from Google Earth. These images cover some areas
in the city of Latakia in Syria. Also, control points have been extracted from Google Earth
and transformed into the Syrian stereographic coordinates system.
Results demonstrated that the second degree 2D polynomial is very suitable for plan
small scenes with uniform distribution of the control points over the entire scene.
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.
This research carried out in Al- Bassa village at Lattakia province during 2013-2014, to determine the effects of increasing rates of boron and zinc fertilization by foliar spraying, on root nodulation and seed yield of broad beans (Viciafaba L.). Se
eds were planted in plastic pots (15 kg capacity), filled with sandy-silty soil, characterized by its poor content of boron, and represents most of lands in the region. Boron and zinc were sprayed by five increasing concentrations (Bo, B25, B50, B75 and B100) and (Zno, Zn25, Zn50, Zn75, Zn10)on broad bean plants at 33 and 65 days post-emergent. Results showed that treatments high significance than control, in termsof root length witch the best treatment was B100Zn100with 31c.m, and 2.85 g for B75Zn75 as a wight of length, on the other hand the best treatment for number of nodules was B75Zn75, 179.03 c.m, B100Zn100 was the best for height of the plant with 100.20, for protein B100Zn100 the best with 37.4%, However, boron and zinc fertilization treatment B75Zn75 is the best, economically.
Post-obturation pain is one of the primary problems following
root canal treatment. Although in most cases pain does not last
long, but could be a source of embarrassment to the dentist and
annoying for the patient.
This study was conducted to in
vestigate and compare the
incidence of postoperative pain after one-visit root canal
treatment (RCT) on teeth with vital pulps using three different
obturation techniques.
90 cases were assigned into three treatment groups, each group
30 cases(10 anterior, 10 premolar, 10 molars), The canals of all
teeth were prepared using Protaper rotary system and then filled
at the same visit using one of the three obturation techniques
(lateral condensation technique, HEROFILL technique, E&Q
PLUS technique). The postoperative pain was recorded on a
visual analogue scale (VAS) of 0 - 100 after 2 hours, 24 hours,
48 hours and 7 days.
The experiment was carried out at the end of April during 2013 In Abi-
Jarash farm, Faculty of Agriculture, Damascus University in order to
determine the influence of organic fertilization on the growth and yield of Snap
bean. The snap bean ”Tema”
Phaseolus Varity, and organic fertilizer” Humax”
with two methods (root application and foliar spry) and two concentrations (2
and 4 g/L) were used. The organic fertilizer was used after two weeks of
germination and then two weeks between treatment and another and the
experiment was laid according to simple randomized block design. Results
showed that organic fertilizer caused an increase of plants growth and yield,
and the foliar spray method showed significant superiority (p<0.05) to some of
the studied parameter such as plant dry weight (6.89 g), leaf area (4595.44 cm2),
leaf area index (2.55), number of clusters (15.3 cluster/ plant), number of pods
(29.6 pod/plant), plant yield (156.9 g/plant), compared to the root applied
method. Results also showed no significant effect for the fertilizer
concentration.
To evaluate the technical quality of root canal treatment performed by
undergraduate students and to detect iatrogenic errors.
