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Fissure Cavity
(29300 Views)
Fissure cavity (fissure caries) is the dental term that describes a carious lesion in the area of the tooth fissure. Fissure is a medical term with several different meanings. In dentistry, it refers to the grooves located on the occlusal or masticatory surfaces of teeth. Cavity can occur more easily in this area because of anatomic variations in the fissures. Fissure caries is usually caused by abnormal fissure anatomy and Plaque. Fissure caries is free of pain. Risk factors for fissure caries include bad oral hygiene. These fissures should be sealed to prevent bacteria from settling in the tooth fissure. Diagnosis of fissure caries is difficult because they are often externally invisible (the enamel surface can be fully intact). Furthermore, dental diagnosis is complicated because of the narrowness of the fissure. Even X-rays are inconclusive because the enamel coat partially absorbs the rays, and small carious lesions frequently get overshadowed. Therefore, if a fissure is threatened by caries, the dentist should seal the fissure with a thin fluid composed of synthetic resin. If the fissure is already infected, it will have to be cleaned and perhaps even slightly extended through grinding. This is called an extended or invasive fissure seal. More about that topic in the video entitled “fissure seal.” This animation shows a cross section of a “normal” fissure, a fissure that can be easily cleaned with a toothbrush and a cross section of an “abnormal” fissure, where leftovers and bacteria cannot be cleaned with a toothbrush. The patient usually only recognizes a tooth discoloration when caries appears. If this should be the case, please consult your dentist.
Produced: 11/2012
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