First of all, seek out a
biological or holistic dentist. Next, avoid any and all commercial tooth
pastes. They ALL include very harsh ingredients (especially ALL whitening tooth pastes), plus systemic toxins that do much harm in the long run, and not just to your teeth, gums, and mouth tissues. Avoid all tooth pastes that contain silica or hydrated silica (strong abrasive, wears down dentin along the gum line which is the major cause for pain in sensitive teeth).