Erosion is a superficial loss of substance localised on the smooth and occlusal surfaces.
For example, skin with a superficial loss of the epidermis gradually heals over time without intervention.
A cartilage lesion was defined as superficial loss and/or thinning, or deep loss to subchondral bone.
At week 1, a slight superficial loss of proteoglycan staining was observed in animals injected with both doses of collagenase, as well as a high degree of a dose-dependent synovial inflammation.
More than twenty years later, in 1970, it was Pindborg [ 40] who gave the often cited definition of erosion as being superficial loss of dental hard tissue by a chemical process which does not involve bacteria.
Terminal ileum biopsies confirmed the presence of superficial loss of substance, and an intense inflammatory infiltrate rich of lymphocytes and granulocytes with sporadic cryptic abscesses extending up to the muscolaris mucosae tonaca.
Axonal loss was assessed using the following scale [23]: 0, no axonal loss; 1, a few foci of superficial axonal loss which involves less than 25% of the lateral columns; 2, foci of deep axonal loss and that encompasses over 25% of the lateral columns; and 3, diffuse and widespread axonal loss.
At these earlier time points of the present experiment, however, only mild alterations such as ulceration of the superficial surface, loss of superficial layers, proteoglycan loss and cluster formation were observed.
b Axial reformatted SPACE image shows superficial cartilage loss on the medial patellar facet (arrow).
Acid conditioning of dental enamel causes superficial tissue loss that ranges between 20 and 50 μm [7], while a possible removal of the bonded material or the bonded attachment (de-bonding) is associated with additional loss of dental tissue [7], enamel tear-outs [8], or enamel cracks [8].
This weakening may cause superficial grain loss during the tanning process.
