DISEASES OF THE TEETH AND ALVEOLAR PROCESS : ATROPHY OF THE CERVICAL. The wedge-shaped teeth defect (Usura cervicalis) - etiology, pathogenesis, symptoms and course of, recognition, prediction and prevention
The etiology is not yet well understood. Most likely lowering the resistance of the organic matter of enamel and the effect of mechanical action of the toothbrush, dental powders and pastes.
The pathogenesis. Wedge-shaped defect is particularly often accompanies periodontal disease (impedances), especially dry form: atrophy of the gums, exposing easily vulnerable part of the cervical area of enamel, to a large extent determines the pathogenesis of wedge-shaped defect.
Symptoms. The neck of the tooth defect appears, mainly located on the labial (buccal) surface having a wedge-shaped or saucer. The bottom of the defect is smooth and solid, the fabric is shiny, polished, little pigmented.
Course and complications. The current is slow. Gradually in the course of many months and even years, the size of the defect increases in depth and breadth. For the most part it does not lead to exposure of the pulp and outwardly seeming inevitable Otomo crowns. One of the most frequent and distressing complications is the occurrence of hypersensitivity journals (see dentin Hyperesthesia). When the smooth surface of the wedge-shaped defect becomes pigmented and rough, you must keep in mind the occurrence of dental caries.
From decay wedge-shaped defect characterized by the presence of smooth polished surface. In this respect wedged reminiscent of dental erosion, the difference is the location of the defect in the cervical area.
Wedge-shaped defect is rarely complicated by caries and does not itself lead to loss of the tooth. In the suppression of hypersensitivity applies local fluoridate.
Prevention is extremely difficult, so as to predict the occurrence of the defect before his appearance impossible in the absence of periodontal disease.
Soft toothbrush. Tooth powder of white clay (Bolus alba). Waiver of toothpastes. Local flyuorizatsiya.