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Fracture of tooth crown
03-09-2009
Fracture of crown of the tooth may occur within the enamel, which often breaks off crown angle; enamel and dentin with or without exposure of the outcrop koronkovoi pulp, enamel, dentine and cement - broke off all the bits in the cervical region along the enamel-dentinovoy border. With palatal side fabric cleave at an acute angle, with the vestibular - at right. The level of passing through the fracture determines the value of the Snap-Off crown and the ratio of the wound surface to pulpovoy chamber.
In the case broke off part of the crown without opening the cavity of the tooth, patients may complain of pain from the cold, hot, mechanical stimulation, the presence of aesthetic flaws. After a day or more after the injury sometimes develops pulpitis due to exposure to the pulp temperature and chemical stimuli, as well as its infection through the uncovered dentinal tubules. Sharp edges traumatic crown fracture language, lip mucosa, which sometimes leads to the appearance of erosion, at least - dekubitalnoy ulcers. In the preserved part of the crown of the tooth enamel found minor cracks. In the case of opening the cavity of the tooth and exposure of the pulp there is a sharp pain, increasing the temperature, chemical and mechanical stimulation, which causes the patient to seek care in the early period after injury. Particularly distressing pain in multiple fractures crowns of teeth. When viewed on the surface of the crown fracture is visible pulp bright red color.
Fracture of the tooth at the neck - often localization. The plane of the fracture may have oblique direction, and partly go under the gum, ie situated beneath the mucous membrane of the alveolar process in the koronkovoi thirds of the root of the tooth. Sometimes the crown is fixed fragments of circular ligament of the tooth. If you broke off the crown of the tooth pulp is always broken, as demonstrated relevant clinical signs of traumatic pulpitis. Pulp pink or bluish-red color can act on the root surface. It sharply painful even when hit the cold air, especially during mechanical stimulation. The mucous membrane at the edges of the hole is often broken. Looking ahead, we must note that one should not rush to remove the root of the tooth, because quite often it can be used for the manufacture of pins of the tooth, Stump tab.
Crown-root fracture - a longitudinal axis of the tooth fracture both the crown and root. May arise when struck by tooth along its vertical axis, with the introduction into the canal of the tooth pin, at least in endodontic manipulation. Process damage the enamel, dentin, cement, pulp. The patient appears pain during chewing of food, the mobility of the tooth. On radiographs clearly defined line of fracture.
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