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Crown: Restoration of teeth, fabricated separately and cemented into specified space refers to crown. Crown is used to cover a tooth, completely. There are special dental technicians who fabricate the crown or bridge. This crown or bridge is subsequently inserted by dentists with prior appointment.

Wisdom tooth is the third molar that erupts into each quadrant of the mouth. Wisdom tooth erupts in late teens or early twenties. In some exceptional cases, they may erupt in thirties also.They erupt at the back of lower and upper jaw that too on both right and left sides. Majority of people have wisdom tooth yet, it is not uncommon to have none to four wisdom teeth in different people.

Root canal treatment is the specialty of dentistry concerned with eliminating infection from the root canals of teeth and restoring the supporting tissues to health. Its purpose is to save teeth that have been so badly damaged by decay, fracture, abscess, etc. that usual dental procedures can no longer be employed.

A root canal is a capillary, which runs from the base of the root of the tooth to the middle of the crown (the visible part of the tooth).