Background. Nowadays there are many ideas to achieve High success and reliable treatment surgeries for bothpartially and totally edentulous patient. The aim of this review to compare accuracy and advantages of Computer guided navigation system vs conventional free hand method. Methods. This review has been done by searching in electronic data bases including PubMed and scopus with these key words” Computer Assisted surgery” , “ navigation implant surgery” , “ dynamic navigation implant” , “ static navigation implant” . Results. In navigation surgery for dental implants the two approaches; dynamic and static were introduced. The static navigation refers to use of surgical templates for the bone implant drilling. Dynamic navigation is used to monitoring through a three_dimentional softwar of the bone drilling and implant placment following the preoperative plane, while the freehand implant placement requires no guided stents. Through Computer guided surgery it possible to reduce deviation and differences between the preoprative CBCT images and measurements from final treatment outcome. Also, the CAS method is usefull in cases with complications like proximity of inferior alveolar nerve. Conclusions. A number of statistically singnificant were found in comprison. In Computer Assisted group indicate no implant fails, reduce of post surgical pain and swelling. And the mean marginal bone loss decreased.

Introduction: Generalized Anxiety Disorder (GAD) is characterized by excessive and uncontrollable worry about various aspects of life. One cognitive mechanism associated with GAD is worry, which serves as an attempt to manage emotional responses. However, individuals with GAD often struggle with emotional regulation, leading to significant emotional dysregulation. This study aimed to evaluate the effectiveness of cognitive behavioral therapy (CBT) based on intolerance of uncertainty (IU), combined with an attentional bias modification (ABM) program, in reducing worry and difficulties in emotion regulation among women with GAD. Materials and Methods: This quasi-experimental study employed a pre-test/post-test/follow-up design with a control group. The study population consisted of women with GAD in Isfahan, Iran in 2024. Using convenience sampling, 30 participants were selected and randomly assigned to either the experimental group (n=15) or the control group (n=15). Data were collected using the Difficulties in Emotion Regulation Scale (DERS) and the Penn State Worry Questionnaire (PSWQ). Results: The combination of CBT based on IU and the ABM program led to a significant reduction in worry and emotion regulation difficulties in the experimental group, both immediately after the intervention and at the two-month follow-up. Conclusion: These findings suggest that integrating an attentional bias modification program into CBT based on intolerance of uncertainty can effectively reduce worry and improve emotional regulation in subjects with GAD.

In this research, the effectiveness of Computer-Assisted Instruction on Academic Achievement of Higher Primary School in Ahwaz City has been surveying. Two hounded students (boys and girls) randomly selected and in each school, two classes (50 students in each class and totally four classes), were divided with the same teacher in science subject. It has collected around 200 academic achievement scores in science subject in form of pre-test and post-test from two different groups (control and experimental group). Pre-achievement scores in science in previous semester and non-verbal intelligence scores have obtained as co-variates for the study. It has analyzed the results that has compared between two groups with respect to academic achievement in science subject. The results revealed that the Computer-Assisted Instruction software package has its effect on academic achievement in science subject of students in experimental group and scores of students in experimental group were higher than scores of students in control group. In addition, the results revealed that there is no significant difference between boys and girls in academic achievement scores in science of experimental group after implement the Computer-Assisted Instruction software package teaching method and both of two groups have higher scores in science subject.