Dental Filling Materials

Physical Property

Definition (after finding the definition ) use your own words to define the term

GIVE A TANGIBLE EXAMPLE; DOES NOT necessarily have to be dental related

1) Thermal coefficient of Expansion

 It is the propensity of a material to change its size, shape, volume, area, and density based on the applied temperature.

 For instance, the railway utilizes a metal. Typically, there is a space between metals because the friction brought by the passing of the train increases the metal's temperature. In the long run, the separated metals will merge or even overlap.

2) Thermal Conductivity

 An object can direct heat or transfer heat. Typically, this event is dependent on the conductivity of the material used.

 In a house, the tile and the carpet have different temperatures during winter. This is because tiles (stones) can conduct more heat. Hence, the tile feels colder during the winter due to the abrupt transfer of heat to your feet.

3) Hydrophobic

 It is a property of an object wherein it cannot be exposed to water.

If one mixes water with oil, there can never be one solution because the oil is hydrophobic.

4) Hydrophilic

 It is a property of an object wherein it typically exposes itself to water.

 Sugar is hydrophilic. Hence, when you mix it with water, it dissolves.

5) Galvanism

 It is the use of currents for therapeutic purposes.

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