Study of physico–chemical properties

was carried out in o

Study of physico–chemical properties

was carried out in order to standardize the formulations. Generally the formulations may be in the form of solid, liquid or gel. Among these gels formulation is more preferred since it is easy to handle and safe and also have few advantages like they have localized effect with slight side effects.1, 2 and 3 Root canal lubricants in the form of gel were used during root canal lubrication for easier penetration of an instrument in root canal preparation. In order to judge a quality of root canal lubricant it is essential to determine its physico–chemical properties.4 this website Several experimental studies have indicated that, number selleck screening library of generally available lubricants solution or gel is not effective in complete removal of soft and hard organic or inorganic materials at a time.5, 6, 7, 8, 9 and 10 The idea of study of physico–chemical properties came from surface tension of root canal irrigant in order to standardize the formulation.11 Materials inhibitors required for the study

of physico–chemical properties are purchased from Earth Chemicals, Mumbai made up of Merck Chemicals Pvt. Ltd. The physico–chemical properties of various concentrations of self developed root canal lubricant gel includes appearance, Solid content, 5% aqueous solution pH, moisture content, viscosity and 5% aqueous solution stability in water etc. Appearance of the gel observed physically by eyes. Solid content was determined by heating the gels in an electrical oven. 5% aqueous solution pH was determined using pH metre.

Moisture content in the gel was found out using Karl Fischer’s apparatus. Viscosity was analysed using B. F. Viscometer. The 5% aqueous solution stability is tested in cylinder. The appearance of formulation was observed visually with the help of naked eyes. The formulation is in the form of stable thixotropic gel. It has been observed that, viscosity of gel increases as concentration of active content of gel increases. In order to determine solid content a known quantity of gel was heated in an oven at 110 °C for 3 h or still constant weight is obtained. Exactly 1 g of sample of gel was heated at 110 °C for 3 h or till Astemizole constant weight is obtained. The process of heating, cooling and weighing is continued till constant weight is obtained. Loss in weight was determined and from loss in weight, solid content was measured and listed in Table 1 and as shown in Fig. 1. 5% aqueous solution pH of the various concentration of gel was determined using digital pH metre having model no. CL – 280 made up of Labline Technologies Pvt. Ltd. Exactly 2 g self developed root canal lubricant gel was dissolved in 40 ml of distilled water and stored for 3 h.

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