Treatment method for teeth and gums

A treatment method for teeth and gums to control dental caries and tooth sensitivity, comprising:

• passivating the surface of tooth dentin of a subject to reduce dentin tubule openings by applying a toothpaste composition to teeth of the subject, and
• brushing the teeth for a time of at least one minute;
• wherein the toothpaste composition comprises:
• (a) Nigella sativa oil in an amount of 3 wt. %;
• (b) an amount of water in the range of 33 wt. % to 36 wt. %;
• (c) sodium lauryl sulfate in the range of 1 wt. % to 2 wt. %,
• (d) glycerol in the range of 29 wt. % to 32 wt. %,
• (e) sodium benzoate in the range of 0.5% to 1.0 wt. %,
• (f) methyl cellulose in the range of 0.5% to 1.0 wt. %,
• (g) calcium carbonate in the range of 24 wt. % to 27 wt. %,
• (h) flavoring agent in the range of 0.5% to 1.0 wt. %,
• (i) fluoride-doped bioactive glass in an amount of 1.5 wt. %;
• (j) zinc oxide in an amount of 3.0 wt. %;
• and
• (k) titanium oxide in an amount of 2 wt. %;
• wherein the wt. % is present by weight of the total weight of the toothpaste and the toothpaste composition has a maximum mean bioglass fluoride release in elutes of 9.95 to 10.75 ppm.