An experiment was conducted on maize crop (Zea mays L.) in plastic pots in two
different soils (Qurna soil, which is poor organic matter and the other soil from
Maysan marshes, which is rich in organic matter), to study the effect of selenium,
sul
fur and phosphate and their interaction on dry weight of shoot of maize crop.
Selenium was added at four levels (0, 10, 20 and 40 g Se ha), sulfur at three
levels (0, 30 and 60 kg S ha), and phosphorus at three levels (0, 60 and 120 kg P
ha).
The objective of the present study was to investigate, in a sub-sinus
bone augmentation model in rabbits, effect of Three Calcium Phosphate
beta at different stages of the osteogenesis process. Histological and
statistical analyses were performed.
Rabbits underwent sinus augmentation procedures using Three Calcium
Phosphate beta (Cerasorb) and Collagen membrane ( Gen Derm ) .
The aim of this study is to evaluate the combination of
autologous factors, platelet rich fibrin (PRF), with bone grafts,
beta tricalcium phosphate (βTCP), In Improving the Prognosis of
Surgical Treatment of periapical lesions .
تزداد يوماً بعد يوم أهمية استخدام الأملاح الفوسفاتية كمضافات علفية ومن هذه الأملاح فوسفات أحادية الكالسيوم
This study aims to assess the effectiveness of using calcium phosphate bone
cement in increasing the primary stability of orthodontic miniscrews by testing
its resistance to pullout forces.
The objective of this study was to compare Chlorhexidine gel 0,2%
with Clindamycine phosphate gel 1% when they applied topically
to protect of pain and dry socket after surgical extraction.
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 research has included quarterly and periodically physical and chemical analysis of treatment wastewater in the Latakia countryside during year 2011 by testing three treatment plants similar in the mechanism of action and distributed in three v
illages (Happit, Al-Harah, Marg Moairban).
This study has included the measurement of temperature, pH, dissolved oxygen, turbidity, and determination of nitrate, phosphate, sulfate, and chloride.
In this research, potentiometric using Selective Electrodes ISEs, the Visible Spectrum, and the Turbidimetry methods were used.
The results showed significant differences in concentrations of the studied ions between one station to another. The highest nitrate concentrations (228.33mg/l) were recorded in Happit treatment plant especially in summer, and the highest phosphate concentrations (41.81mg/l) were in Happit treatment plant in summer. Whilst the highest sulfate concentrations which ranged between (508.67– 1157.33)mg/l were in Al-Harah treatment plant at all seasons. The highest chloride concentrations (310.33mg/l) recorded in Happit treatment plant in summer.
The statistical study has demonstrated and showed high and sometimes low correlation coefficient R2 so that gives clear indications about the sources of pollution.
This study aimed to radiographically assess the effectiveness of
the synthetic graft (Easy-Graft)™ which consists of [BCP+PLGA] in preservation of alveolar bone after teeth extraction. The sample consisted of thirty extraction cases in 28 patients (
17males 11females) and was randomly divided into two groups; study group (15 cases) where the graft had been applied after extraction and the control group (15 cases). Periapical radiographs were taken immediately after extraction,and six and fifteen months later to measure the amount of bone height decrease. Data were collected by an image analysis software and statistically analyzed. As a result,
the mean bone height decrease in the control group was (0.6mm) after extraction, (2.4mm) after six months, and (3.3mm) 15 months later.Whereas it was (0.14,1.1,1.5mm) after extraction, 6months and 15months later respectively. As such, there were statistically significant differences between the different follow-up times.Thus, (Easy-Graft)™ considered an effective method for alveolar bone preservation after teeth
مقارنة بين استخدام البلازما الغنية بعوامل النمو والطعم الذاتي مع فوسفات ثلاثية الكالسيوم في رفع الجيب الفكي والزرع السني على مرحلتين ( درساة سريرية نسيجية شعاعية)
