Throughout the years, the dental profession has held a variety of theories about the causes of tooth wear, including chemical wasting of the teeth, the effects of tooth brushing, and lateral forces. Tooth wear may present as abfraction, abrasion, attrition, and erosion. It is well established...
The meaning of ABFRACTION is a mechanism that is postulated to explain loss of tooth enamel and dentin in the part of a tooth between the crown and root in the absence of tooth decay; also : the narrow usually V-shaped area of tooth loss caused by abfrac
The analyses were performed using a unit load, which under the hypothesis of linear response of the tooth, allows the combinations described in the text to simulate different functional and parafunctional loads. The results indicate that a realistic enamel description in terms of mechanical properties...
toothwearNon-carious cervical lesions involve loss of hard tissue and, in some instances, restorative material at the cervical third of the crown and subjacent root surface, through processes unrelated to caries. These non-carious processes may include abrasion, corrosion and possibly abfraction, ...
Examination of ancient skeletal remains have not found such tooth lesions although the teeth show occlusal wear. In support of the process of abfraction, cervical enamel is more brittle than dentine and there is poorly developed scalloping between this and dentine in this region. This has to ...
Abfraction is thought to take place when excessive cyclic, non‐axial tooth loading leads to cusp flexure and stress concentration in the vulnerable cervical region of teeth. Such stress is then believed to directly or indirectly contribute to the loss of cervical tooth substance. This article ...
Two-dimensional plain strain finite element meshes of an upper incisor, canine and first premolar and the supporting periodontal ligament and alveolar bone were developed. Each tooth was loaded with an oblique 100 N load, and the nodal maximum principal stresses (MPS) along a buccal horizontal ...
Twelve models were generated: sound tooth, 1·25 and 2·5 mm abfraction teeth. 100N compressive static load was applied: axially and 45° angle to the long axis on the palatine surface of the buccal cusp. Two strain gauges were bonded on the teeth mounted in a mechanical testing ...
The article provides information on abfraction. It relates that the term denotes the loss of tooth structure at the cervical region from heavy occlusal forces. It notes that causes of abfraction include excessive chewing and or biting forces such as bruxism, erosion and corrosion. It also mentions...
Overview: Many hypotheses describe the possible etiology of abfraction. Tooth flexure hypothesis is the most accepted one. This hypothesis assumed the occlusal load as the causative factor for abfraction as the occlusal stress concentrates at the thin enamel of the gingival third of the tooth, so ...