What is tooth decay?

Bacteria invade the teeth through a cavity, a crack or a loose dental filling. The pulp of the tooth becomes infected and if neglected, the bacteria will eventually destroy the pulp. The infection can travel through the root canal into

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What is mumps?

It is a childhood illness caused by a virus. It causes fever, headache, muscle aches and exhaustion. Swelling of the salivary glands, specially below the ear and jaw, is common. In rare causes it can cause deafness, infection of the

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What are pacemakers?

Pacemakers are battery operated electronic devices which give an electric impulse to the heart. They are used to treat an irregularly beating heart, slow heart, heart block etc. The pacemaker consists of a pulse generator (with a lithium battery and

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