1.Imagwiritsidwa ntchito kwambiri powotcha chitsulo cham'madzi ndi mbale kuti zithandizire mphamvu.
2.Imagwiritsidwa ntchito ngati mtengo wothira nkhuni, kuwotcherera othandizira ndi fluorine othandizira mankhwala akumwa madzi.
3. imagwiritsidwa ntchito popanga fluorides wina, carocin chingamu, dzino la sodium fluoride, zomata, mapepala okhala ndi mapepala.
4in okumba, imagwiritsidwa ntchito ngati phosphartoji yokhazikika kuti mukhazikike phosphait yankho, kukonza ma phosphat ndikusintha magwiridwe antchito a phosphaiti.
