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When the gingiva become so irritated that there is a loss of the connective tissue fibers that attach the gums to the teeth and bone that surrounds the tooth, this is known as periodontitis. Dental plaque is not the sole cause of periodontitis; however it is many times referred to as a primary aetiology.
The effective dose is the risk of radiation averaged over the entire body. [4] Ionizing radiation is known to cause cancer in humans. [4] We know this from the Life Span Study, which followed survivors of the atomic bombing in Japan during World War 2. [5] [4] Over 100,000 individuals were followed for 50 years.
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The energy-depth-dose profile is a curve starting with a surface dose, ascending to the maximum dose in a certain depth d m (usually normalized as 100% dose), then descends slowly through depths of 90% dose (d 90) and 80% dose (d 80), then falls off linearly and relatively sharply though depth of 50% dose (d 50).
Dental radiographs, commonly known as X-rays, are radiographs used to diagnose hidden dental structures, malignant or benign masses, bone loss, and cavities.. A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels, depending on varying anatomical densities, before striking the film or sensor.
Albert Stevens (1887–1966), also known as patient CAL-1 and most radioactive human ever, was a house painter from Ohio who was subjected to an involuntary human radiation experiment and survived the highest known accumulated radiation dose in any human. [1]
Many low-dose palliative treatments (for example, radiation therapy to bony metastases) cause minimal or no side effects, although short-term pain flare-up can be experienced in the days following treatment due to oedema compressing nerves in the treated area. Higher doses can cause varying side effects during treatment (acute side effects), in ...
Oral urgent treatment (OUT) – relief of oral pain (through extracting non-repairable painful teeth; and other urgent treatment), first aid for oral infections and dental trauma; Affordable fluoride toothpaste (AFT) – through oral health promotion and prevention of caries and gingivitis through toothbrushing using toothpaste fluoride; and