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Dental attrition is tooth wear caused by tooth to tooth contact. Well-defined wear facets appear on tooth cusps or ridges. This can be caused by several factors, including parafunctional habits such as bruxism or clenching, developmental defects, hard or rough-textured diet, and absence of posterior teeth support.
ART fillings can be used in multiple situations, such as for single-surface cavities in primary (baby teeth) and permanent (adult) teeth, and multiple-surface cavities in primary teeth, if no other option is available or suitable (e.g. Hall Technique). They can also be used for non-frankly cavitated lesions (presenting a shadow under the enamel ...
Within a sextant (i.e. teeth in mouth divided into 6 parts), the most severely affected tooth surface (buccal, occlusal or lingual/palatal)(see dental terminology) is recorded according to the severity of the wear (see Table 1). A cumulative score is then matched to a risk level and guidance for its management by a clinician.
Edge-to-edge articulation is when opposing front teeth meet along their incisal edges when teeth are in maximal intercuspal position. [16] In Posselt's envelope this happens in ICP as the incisors of the mandible slide past the cingulum of the upper incisors to meet the biting edge and continue to maintain tooth contact as mandible protrudes ...
Occlusal trauma; Secondary occlusal trauma on X-ray film displays two lone-standing mandibular teeth, the lower left first premolar and canine. As the remnants of a once full complement of 16 lower teeth, these two teeth have been alone in opposing the forces associated with mastication for some time, as can be evidenced by the widened PDL surrounding the premolar.
Repeated exposures to a low pH cause the mineral content of the teeth on the outer layer of enamel to dissolve therefore leaving the dentine exposed and leading to hypersensitivity. Other causes include dental bleaching, smoking tobacco (which can lead to recession and therefore sensitivity) cracked teeth and abfraction or grinding of teeth ...
The alveolar bone surrounding a tooth also surrounds adjacent teeth. Removing bone for a crown lengthening procedure will effectively decrease the bony support available for surrounding teeth and unfavorably increase the crown-to-root ratio. Additionally, once alveolar bone is removed, it is almost impossible to restore it to previous levels.
Dahl found that it was a combination of intrusion of the anterior teeth in contact with the appliance (40%) and passive eruption of the unopposed posterior teeth (60%) that permitted the reestablishment of posterior occlusion whilst maintaining the interocclusal space.