There are different stick types and shapes, different root canal preparation techniques, as well as different materials for stick cementing and making annexes around posts. The use of fiber-reinforced resin posts to restore endodontically treated teeth has gained popularity due to its mechanical and esthetic characteristics as well as properties of modern adhesive systems. The aim of this article was to show a clinical technique to reconstruct endodontically treated teeth with great loss of tooth structure using direct fiber-reinforced post systems and direct composite restorations. After the preparation of the root canal and cementation of a FRR post, particular attention was paid to the incremental and curing techniques adopted to reconstruct coronal part of the tooth. It is possible to place of fiber-reinforced resin posts. 

The process of multipotential lymphatic stem cell maturation and differentiation into immunocompetent T cells is accomplished by the expression and deletion of specific surface CD antigens. The CFU-Lstem cells enter the medulla of the thymus via a post capillary venule and then migrate to the periphery of the thymic lobule. The presence of CD2 and CD7 molecules on the cell surface indicates an early stage of differentiation. This is followed by expression of the CD1 molecule, indicating the midstage of Tcell differentiation. As maturation progresses, the cells express TCRs, CD3, CD4, and CD8 molecules. It seems that intensity of interreacion between TCR/co receptor molecule complex and self peptide/MHC complex determine the outcome of the thymocite selection process. If the lymphocyte recognizes self MHC and self or foreign antigen, it will survive the selection (positive selection); if not, death of the cell will occur. Cells that pass the positive selection test leave the cortex and enter the medulla. Here they undergo another selection process in which cells directed to selfantigen displayed by self MHC are eliminated (negative selection). Cells that survive that selection then become either cytotoxic CD8+ Tlymphocytes or helper CD4+ Tlymphocytes.

Dental caries (Caries Dentis) is multi cause, multi phase, and reversible disease of infectious nature. Modern understanding of caries etiology is showing that dental caries is complex disease as a result of numbers of factors which can be divided on causal (primary) and conditional (secondary) . According to this concept caries is an implication of local factors synergy (host-tooth, microorganisms, nutrition or substratum), as primal factors and a number of secondary factors which can react in various phases of teeth growth and function. Specific type of caries is early caries, characteristic for youngest age (suckling and infants). Early childhood caries ECC is a concept used to realistically describe emersion of all caries changes, in primal, milk dentitio , when caries exists on tooth at the least. This disease is becoming very serious health problem both in dental and medical way. And it should not be observed isolated like a dental problem but like a problem which affects overall child development. In Kosovo County, among children of age from 2 to 5, there is 96.7% of caries teeth, 2.3% of filled teeth and 0.7% of extracted teeth. Percentage of children with caries is statistically growing with age and is in range from 45.4% for a two years old, up to 77.2% for a five years old