Efficacy of local injection of dexamethasone into the masseter muscle following the surgical extraction of impacted lower third molars on postoperative consequences (pain, swelling and trismus)

The aim of this study was to evaluate the efficacy of dexamethasone, as a single 4-mg dose, which was injected into the masseter muscle upon completion of extraction of impacted lower third molars . this study is A prospective, randomized controlled study . This study involves 40 healthy patients of both sexes with impacted mandibular third molars in this study . The difficulty of extraction was similar in all cases. The test side received 4 mg of dexamethasone This dose was injected into the masseter muscle via the intrabuccal approach, immediately after suturing of the surgical wound. The control side received 4 mg of dexamethasone injected into the gluteal area.

Laboratory study to improve the expansive soil by adding chemical Stabilizers

The purpose of this research is to study the improvement of soil properties by the addition of lime in certain percentages. The soil used in this study was obtained from the Baseet region, which is located by the Syrian coast. We have studied the effect of lime on the consistency, the swell characteristics and the shear strength of soil. The results of this study have shown a remarkable reduction of both liquid and shrinkage limits, and the plasticity index with the increase of lime percentage. As for plasticity limit, it increases in the beginning then decreases slightly with the rising of lime percentage. For the volumetric variation, the susceptibility of swelling and the shrinkage of improved soil with lime decrease, and the free swelling and the swelling pressure become almost negligible with 4% of lime. Based on the shear strength results, we can indicate a notable increase in the friction angle and cohesion of soil with increasing of lime percentage up to 8% of lime. After that, these two factors decrease.

Evaluation the effect of the use of Platelet-Rich Fibrin on immediat complication following Impacted Mandibular Third Molar Surgery

This study was aimed to evaluate the effect of the use of Platelet- Rich Fibrin on immediat complication following impacted mandibular third molar surgery. forty extractions of bilateral impacted mandibular third molars were performed in 20 volunteers (18 to 25 years old). After extraction of right and left mandibular third molars, the socket at 1 side received the autologous PRF (test group) and the other was filled with blood clot (control group) .

Experimental study of clay properties and behavior during oil and gas wells drilling

In this research, we focus on the swelling properties of clay, the cation exchange capacity and the efficacy content of clay in mud, to deal ideally the drilling problems attached to clay formations in Syrian oil and gas fields.