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Impacted tooth luxation
03-09-2009
When dislocation occurs dive impacted tooth root into the bone of the alveolar process and body of the mandible and a partial or complete displacement of tooth crown in the alveoli, which is possible when struck on the cutting edge of the tooth. Impacted dislocation often accompanied by a complete rupture of periodontal fibers. Neurovascular bundle, as a rule is broken. Due to the introduction of a wide part of the tooth into a narrow part of the alveolus bone ravine its walls are deformed, compressed and break down. Bone marrow space of the alveoli walls and smashed apart. Vkolachivanie tooth can be combined with turning around its axis, a shift in the vestibular or palatal direction.
This type of dislocation is recognized as a separate management group. Some authors consider it a kind of complete dislocation, but it may have clinical and radiological evidence of partial dislocation. At the same time, it is characterized by symptoms that do not occur in the previous two: the complete disappearance of the gap periodontal, fracture of walls of the alveoli, the destruction of the bottom of the alveoli.
Patients complain of spontaneous pain in the tooth, a shortening of its height, bleeding from the gums, pain when chewing food due to injury of tissues around the tooth. The results of the inspection shall not differ from those given above. When viewed from the oral cavity is defined by a significant shortening of the crown of the traumatized tooth. Initially, it seems that part of the crown otlomlena. However, careful examination can detect the cutting edge of the crown of the tooth, which can be rotated around the axis tilted oral or vestibular. Cutting-edge of the crown can act above the gum or remain at its level. Sometimes the crown is not visible and is determined only in the depth of the alveoli in probing. The tooth is immobile due to its vkolachivaniya and mechanical jamming in the bone tissue. Percussion his maloboleznenna. The mucous membrane of the gums in the projection of impacted tooth swelling, palpation of its moderately painful. On the radiograph of the traumatized tooth crown has always projected into the hole, and the tip of the root of impacted tooth – outside the hole. On the upper jaw is located above and at the bottom – below the top of the root of the tooth of the same name, is in the correct position in the dental row. Periodontal gap is not defined as part of a broad roots entrenched in a narrow part of the alveoli and entered into direct contact with its walls. Cortical plate alveoli may also not be determined, depending on the degree of displacement of the tooth in the alveoli. Sometimes the displacement of the tooth is so great that on the radiograph may be defined in the body of the jaw.
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Articles for theme “dislocation of the tooth”:
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03-09-2009
At full dislocation is a complete rupture of the tissues of the tooth and a circular bundle. This is accompanied by precipitation of a tooth from the alveolus under the applied force or its own weight. Neurovascular bundle is torn, can be determined by fracture edge alveoli, dislocated tooth. Sometimes the tooth is retained in the alveoli as a result of adhesive properties of the two wet surfaces. Often dislocating frontal teeth of the upper jaw, at least – the bottom. Central incisors dislocate more often than the side.
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03-09-2009
A partial dislocation is characterized by rupture of the periodontal fibers. Unexploded fibers, usually spread over a greater or lesser extent.
Incomplete dislocation often Esego changing situation in the dental crown of the tooth row and the root relative to the walls of the alveoli. Depending on the direction of space applications and the gravity of the tooth may shift toward the occlusal plane, the adjacent tooth and a lip or oral side, to turn around the axis. All this leads to the violation forms dentition.
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03-09-2009
Damage to the upper jaw, according to the literature, up 64.4%, lower – 22,1%, both jaws simultaneously – 13,5%. Thus, traumatic injuries of the upper jaw there are 3 times more frequently than the teeth of the mandible.
The cause of dislocation of the tooth – the force applied to the crown of the tooth: blow, nibble hard food, getting to the tooth of a foreign body in a lump of chewed food, bad habits (opening beer bottles with his teeth). In case of incorrect or careless use of dental forceps or elevators for the removal of teeth (shtykovidnogo) or roots (direct, angular) can occur dislocation located near a tooth.
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