TOOTH PASTE

TOOTH PASTE 

AIM: To prepare and submits 10gm of Tooth Paste.

FORMULA:

S. No.	Ingredients	Qty for 100gm	Qty for ____ gm
1	Precipitated Chalk	40 g
2	Sodium Lauryl Sulphate	1.2 g
3	Glycerin	25 ml
4	Propylene Glycol	06 ml
5	Sodium Saccharin	0.05 g
6	Sodium Carboxy Methyl Cellulose	01 g
7	Chloroform	0.5 ml
8	Propyl Paraben	0.02 g
9	Peppermint Oil	Q.S
10	Water up to	100 g

PRINCIPLE:

Toothpaste is a dentifrice and its primary function is to remove adherent matter from the tooth surface with minimal damage to it.

It is a common domestic cleaning preparation, which is normally prepared by using mild abrasive agent to which surfactants are added. ‘urfactant aids in the penetration and removal of adherent film and to suspend removed soil matter. The foam produced has physiological effect in making tooth cleansing more pleasurable. Cleaning function achieved in short time and at body temperature.

The basic processes in the manufacturing of Toothpaste are

·         Hydration gelling.

·         Dispersion of the abrasive in the gel.

·         Hydration of the gel is normally done by adding a solid gelling agent to glycerin and part of the water under condition of vigorous agitation.

The powder addition may be done in variety of steps. It is usual practice to add active ingredient late in the mixing cycle and to add surfactant and flavour last. This is done to avoid excessive foaming and to reduce loss of flavour.

The various constituents of standard toothpaste are

·         Gelling agent                  :           Ex. Carboxy methylcellulose, Gum tragacanth.

·         Humectants                   :           Ex. Glycerin, Sorbitol.

·         Abrasive                        :           Ex. Calcium carbonate, Calcium bi phosphate.

·         Sweetener                     :           Ex. Saccharin.

·         Flavour                          :           Ex. Peppermint oil, Menthol.

·         Surfactant                     :           Ex. Sodium lauryl sulphate.

·         Preservative                   :           Ex. P-Hydroxy benzoate.

·         Prophylactic acid            :           Ex. Sodium fluoride.

Glycerin and Propylene glycol are added as humectant to prevent the toothpaste drying at the tube nozzle. In order to maintain high solid suspension in stable viscous form, adding gum tragacanth increases the viscosity of liquid phase. Sodium Saccharin used as sweetener, Sodium lauryl sulphate as Surfactant, Peppermint oil as flavoiring agent, precipitated Calcium carbonate as abrasive.

PROCEDURE:

Dissolve Sodium Saccharin and Propyl paraben in half the quantity of water. Mix Glycerin and Propylene glycol and add this to Sodium Saccharin solution. Weigh out required quantity of sodium cc and place in a clean dry mortar. Add aqueous solution to the gum and triturate rapidly until a uniform dispersion is obtained. Keep aside for 20 minutes to allow binding agent to swell. To the gel produced add precipitated chalk in small amounts and triturate thoroughly after each addition to obtain smooth paste. Add Chloroform, Peppermint oil and mix well. Dissolve Sodium lauryl sulphate in required remaining quantity of water taken in beaker. Add this solution in to the mortar and triturate slowly then fill in to the container.

USE: To cleanse the teeth and deodrize the oral cavity

REFERENCE: Harrys Cosmetics