Movement of the joint is known as articulation and is usually a silent process. However, sometimes there may be abnormal sounds and sensations emanating from a joint during movement. One of the common such occurrences involves the jaw joint known as the temporomandibular joint or TMJ for short. This is the joint between the lower jawbone (mandible) and skull (temporal port) where articulation between the two bones occur.
Clicking of the jaw joint is a fairly common occurrence and sometimes becomes a chronic problem. Sometimes there may be resistance with a sudden pop during jaw movement. Clicking and popping are symptoms of some underlying problem of the jaw joint referred to as temporomandibular joint dysfunction.
One of the most common sites for a fungal infection in the scalp, the skin on the top of the head that is usually laden with hairs. Tinea capitis is a fungal infection of the scalp skin caused by dermatophytes. Since dermatophytes cause a typical red ring-like rash, it is often referred to as scalp ringworm. However, it is important to note that a scalp ringworm has no involvement with any parasitic worm of any sorts. The fungus consumes the skin cells and the base of the hair in many instances thereby making it one of the most important infectious causes of hair loss.
Difference between dental amalgam and composites
Dental amalgam fillings and dental composites are widely used dental restorative materials. Dental amalgam is an alloy of mercury combined with metals such as silver, copper and zinc. It is used as the dental restorative material of choice for over a century in dentistry. It is one of most cost effective, durable and long lasting restorative material available. The major disadvantage of dental amalgam is the metallic color of restoration that causes cosmetic problems if it is used in the front teeth
Dental composites are restorative materials that are derived from combination of two or more chemically different material with a distinct interphase in between. The major advantage with the use of dental composite restorations is availability of various shades and hues to match the exact tooth color and reestablish the aesthetics. It is also a strong and long standing restorative material with minimum side effects.