5 PHARMACEUTICAL PREPARATIONS FOR THE TREATMENT OF GINGIVITIS, HYPERSENSITIVITY OF TEETH; PHARMACEUTICAL PRODUCTS, NAMELY, GELS AND FLUIDS IN THE NATURE OF DENTAL BLEACHING GELS, GUM BALMS, MOUTH RINSES, DENTAL RINSES, FOR THE PREVENTION OF OR PROTECTIVE TREATMENT FOR DENTAL CARIES AND PROPHYLAXIS; MEDICATED CHEWING GUM FOR THERAPEUTIC USE, GUMS PROTECTION, CARIES PROPHYLAXIS AND CARIES PROTECTION; LOZENGES IN THE NATURE OF THROAT, MEDICATED LOZENGES AND COUGH LOZENGES