Definition, Purpose, Description, Risks, Normal results


Exercise is physical activity that is planned, structured, and repetitive
for the purpose of conditioning the body. Exercise consists of
cardiovascular conditioning, strength and resistance training, and


Exercise is essential for improving overall health, maintaining fitness,
and helping to prevent the development of




, and cardiovascular disease. Surveys conducted by the Centers for Disease
Control and Prevention (CDC) indicate that 61.5 percent of children aged
nine to 13 years do not participate in any organized physical activity
(for example,


, dance classes) and 22.6 percent are not physically active during their
free time. According to the American Obesity Association, approximately 30
percent of children and adolescents aged six to 19 years are overweight
and 15 percent are obese.

A sedentary lifestyle and excess caloric consumption are the primary
causes of this increase in overweight and obesity; regular exercise is
considered an important factor

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Dental Crowns: Purpose, Procedure, Complications, Care

A dental crown is a tooth-shaped “cap” that is placed over a tooth — to cover the tooth to restore its shape and size, strength, and improve its appearance.

The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.

Why Is a Dental Crown Needed?

A dental crown may be needed in the following situations:

  1. To protect a weak tooth (for instance, from decay) from breaking or to hold together parts of a cracked tooth
  2. To restore an already broken tooth or a tooth that has been severely worn down
  3. To cover and support a tooth with a large filling when there isn’t a lot of tooth left
  4. To hold a dental bridge in place
  5. To cover misshapened or severely discolored teeth
  6. To cover a dental implant
  7. To make a cosmetic modification

For children, a crown may

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Root Canal Procedure for Infected Tooth Nerve: Purpose, Procedure, Recovery

Root canal therapy is a treatment used to repair and save a tooth that is badly decayed or infected.

Root canal therapy is performed when the pulp which is composed of nerves and blood vessels in the tooth becomes infected or damaged. During root canal therapy, the pulp is removed, and the inside of the tooth is cleaned and sealed.

People fear root canals because they assume they are painful. Actually, most people report that the procedure itself is no more painful than having a filling placed. The discomfort experienced in the period leading up to seeking dental care is truly painful, not the procedure itself.

What Is Dental Pulp?

dentalpulpThe pulp or pulp chamber is the soft area within the center of the tooth and contains the nerve, blood vessels, and connective tissue. The tooth’s nerve is in the “root” or “legs” of the tooth. The root canals travel

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