SELECT SUM(COALESCE(tarif_esimple, 0) + COALESCE(tarif_chiru, 0) + COALESCE(tarif_compo, 0) + COALESCE(tarif_granu, 0) + COALESCE(tarif_pulpo, 0) + COALESCE(tarif_detar, 0) + COALESCE(tarif_gingi, 0) + COALESCE(tarif_cure, 0) + COALESCE(tarif_ceram, 0) + COALESCE(tarif_zircom, 0) + COALESCE(tarif_stellite, 0) + COALESCE(tarif_resine, 0) + COALESCE(tarif_tot_resine, 0) + COALESCE(tarif_mob_flexible, 0) + COALESCE(tarif_tot_fixe, 0) + COALESCE(tarif_ortho_fixe, 0) + COALESCE(tarif_ortho_mobile, 0)) AS somme_total FROM soins;