This study will be performed to assess the effect of inert prepared tooth paste loaded with Calcium Silicate Nanoparticles (CSNPs) and compare it to another one containing Sodium Fluoride Nanoparticles in the management of patients complaining of hypersensitivity and laboratory investigating the efficacy of CSNPs and NaFl Nps containing toothpaste in dentinal tubules occlusion.
Hypersensitive areas on facial surfaces of the teeth (incisors, cuspids, bicuspids, and first molars with exposed cervical dentine)
Areas with hard tissue erosion
cuneiform defect, pathological abrasion.
Gingival recession
chipped teeth
Defective restorations
fractured un displaced cuspids
deep dental caries