HypersensitivityMetalsHypersensitivity, DelayedDrug HypersensitivityAlveolitis, Extrinsic AllergicDermatitis, ContactDentin SensitivitySkin TestsHypersensitivity, ImmediateDinitrofluorobenzeneHyperalgesiaPicryl ChlorideDermatitis, Allergic ContactOxazoloneFood HypersensitivityImmunity, CellularDentin Desensitizing AgentsZincHaptensCell Migration InhibitionPain ThresholdSkin