ABSTRACT
Abstract: Aim: The aim of this study was to assess the prevalence of temporomandibular disorders (TMD) and their association with anxiety and depression in Tunisian patients. Methods: Two hundred patients were enrolled in the study and completed a socio-demographic survey. Then, TMD and psychological distress were assessed. Descriptive statistics and logistic regression analysis were performed with TMD symptoms as the outcome variable. Results: The prevalence of patients with at least one TMD symptom was 29%. Almost two-thirds of subjects (64%) experienced a history of psychological stress. Anxiety symptoms were determined in 58% of patients, while depression symptoms were found in 23.5% of patients. Logistic regression analysis showed that gender, anxiety, depression and stress were significantly related to TMD symptoms. Conclusion: The prevalence of TMD symptoms in Tunisian patients is not very high. Psychological distress; anxiety, depression and stress are correlated with TMD. Risk factors for patients with confirmed TMD were anxiety, depression, stress and female sex. Thus, further longitudinal research of the causality is warranted.

ABSTRACT
Abstract: Mankind has struggled with many diseases throughout its history. Infectious diseases are especially prevalent among the population. According to its scope, such infectious diseases are called pandemics, epidemics. Among the population of Central Asia, a number of diseases, such as plague, plague, malaria, tuberculosis, and ringworm, have caused partial or mass extinction. The characteristics of the geographical distribution of these diseases largely depended on the natural and social geographical conditions of the regions, the lifestyle and traditions of the population. The effects of the Spanish flu pandemic, which has killed nearly 100 million people in the last hundred years among a wide range of diseases, have had a profound effect on the nosogeographic situation, especially in Europe and later in the Americas. Analyzes show that the deterioration of the environment, man's unlimited domination of nature, the deterioration of the ecological situation, as well as the spread of related diseases on earth pose new challenges to medical geography, which studies the causes and patterns. The rapid development of science and technology, the steady increase in human impact on nature and consequently, a number of negative changes in the natural environment have a significant impact on human health. The acceleration of the process of urbanization which in turn causes problems such: as air, water and soil pollution.

ABSTRACT
Abstract: Background: Harold Ellis in 1989 said, “the treatment of acute appendicitis is appendectomy – and the sooner it is done, the better.” Delayed diagnosis is associated with increased risk of having a complicated appendicitis, often, a perforated appendix. The desire to make an accurate and prompt diagnosis of acute appendicitis, reduce negative appendicectomy rate and improve the operative morbidity associated with surgery for appendicitis; has remained aflame in surgeons. This desire is almost unmet, especially, in the early stages of appendicitis, in females of reproductive age and in children. In this cohort of patients, making accurate preoperative diagnosis is difficult, because of atypical presentation and the presence of swathes of differentials with similar clinical symptoms and the occasional failure of simple radiological tools like Ultra Sound Scan(USS), to clinch the diagnosis. It is therefore imperative to probe the reliability of clinical assessment in making an accurate diagnosis, especially, in areas where the reliability of the results of USS is not strong and there is dearth of high resolution radiological tools of assessment, such as; Computed Tomography (CT) and Magnetic Resonance Imaging(MRI). Objectives: We aim to correlate the clinical and histopathological diagnoses .....................

ABSTRACT
Abstract: Introduction: Ceramic veneers are an esthetic treatment which becomes a widespread approach satisfying increasing requirement of patients in terms of esthetics. It is a highly conservative approach treatment compared to total crowns as they require minimally preparation limited to enamel. The success of prosthetic rehabilitation with ceramic veneers depends on several parameters especially when patients are more demanding. That’s why it is necessary to specify the indications and respect the limits of ceramic veneers. This systematic review aims to identify and update veneers Indications in order to ensure patient’s satisfaction and offer long-lasting results. Material and method: A broad search of Pubmed, Cochrane Library, Ebscohost was conducted using all terms relevant to the subject. Relevant papers published in English and Frech were identified after a review of their titles, abstracts and full reading of papers. The search covered the period from January 2014 to January 2019. Results: A total of 909 articles were found: 18 are duplicated and 774 were excluded. 117 were selected according to the title and abstract. Finally, 69 articles were eligible for the present systematic review. Selected articles discuss veneers indications through 137 clinical reports : A total of 94 female, 38 male and 5 not identified patients.6 patients were under to 18 years, 95 were more than 18 years and 36were not indicated. Conclusion: Ceramic veneers are indicated mainly to perform and correct shape and color. Several parameters should be taken on consideration. Some factors straight away contraindicated this type of restoration as insufficient enamel, pulpless teeth, poor oral hygiene.