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Au Togo, grA ce A l'appui des organismes, on note une multiplication des puits et forages.Cette situation est notA(c)e tant dans les milieux pA(c)riurbains que ruraux. Notre travail rA(c)alisA(c) sur les aquifA]res du socle a couvert toute la rA(c)gion centrale pour vA(c)rifier si la pollution chimique est notA(c)e dans les eaux de forage. Afin de mieux estimer ce problA]me de pollution, nous avons procA(c)dA(c) A une reprA(c)sentation spatiale des teneurs des diffA(c)rents paramA]tres physico-chimiques sur des cartes 2D et A un traitement statistique qui a permis d'A(c)valuer la...

The goal of periodontal therapy is to improve periodontal health and thereby to satisfy the patient's esthetic and functional needs or demands. To achieve this goal, most periodontal treatments aim to reduce probing depths and maintain or improve attachment levels and these parameters are used as surrogates of improved tooth retention. One of the promising innovations in the field of surgical dentistry is the use of platelet-rich fibrin (PRF) and PRP, alone or as an additive with other biomaterials. It accelerates the healing mechanism of the tissue and reduces the inflammation. This book...